Can I Tell If Someone Is Spying On My Phone? Unmasking Digital Intruders

I remember my friend Sarah, a super savvy marketer, came to me one day with a really worried look. Her phone, which she usually treated like an extension of herself, was acting up. It was draining battery faster than a kid through a juice box, getting hotter than a summer sidewalk, and sometimes, she swore, it would just flash on and off for no reason. She’d say, “I just have this nagging feeling someone’s in my phone, but how can I even tell if someone is spying on my phone?” That uneasy feeling, that creeping suspicion, is often the first sign something isn’t quite right. And the simple, direct answer is: Yes, absolutely, you often can tell if someone is spying on your phone, though it typically requires a keen eye for unusual behavior and a bit of digital detective work. It’s rarely a blaring siren, but more often a collection of subtle, unsettling clues that, when pieced together, paint a pretty clear picture.

In our increasingly connected world, the thought of someone invading the privacy of your most personal device is unsettling, to say the least. Our phones hold our entire lives – our communications, photos, financial apps, and even our location history. Knowing how to spot the signs of a digital intruder and what to do about it is no longer just for the tech-savvy; it’s essential for everyone.

The Uneasy Feeling: Subtle Signs Something’s Amiss

When spyware or monitoring software is active on your device, it’s constantly working in the background, collecting data and sending it off to the snoop. This heavy lifting often leaves a trail of digital breadcrumbs that, if you know what to look for, can alert you to its presence. Think of these as your phone trying to whisper for help.

Sudden and Excessive Battery Drain

This is, hands down, one of the most common and earliest indicators. Spyware applications are resource hogs. They run continuously, logging your activities, recording audio, tracking your location, and sending all that data over the internet. This constant background operation devours battery life at an alarming rate. If your phone, which typically lasts all day, suddenly needs a charge by lunchtime, and you haven’t changed your usage habits, that’s a serious red flag. You should be able to check your battery usage in your phone’s settings to see which apps are consuming the most power. Look for any unfamiliar apps or legitimate apps showing unusually high consumption.

Phone Overheating Even When Not in Use

Just like a computer running intensive tasks, a phone with active spyware can get noticeably warm, even when it’s just sitting idle in your pocket or on your desk. This warmth is a direct result of the processor working overtime to handle the spyware’s hidden activities. If your phone feels consistently hot to the touch without being used for gaming, video streaming, or extensive calls, it’s a symptom that shouldn’t be ignored.

Noticeable Performance Issues

Is your phone suddenly sluggish? Apps crashing frequently? Taking forever to open? These performance woes can definitely signal that something else is hogging your phone’s processing power and memory. Spyware competes with your legitimate apps for resources, leading to a frustratingly slow experience. You might also notice your phone freezing or restarting randomly. While sometimes this can just be an aging device or a buggy app update, if it’s accompanied by other suspicious signs, it’s worth investigating.

Unexplained Increase in Data Usage

Remember how spyware sends data to the spy? Well, that data has to travel over your internet connection. If you suddenly see a spike in your mobile data usage that you can’t account for – you haven’t been streaming more videos, downloading large files, or browsing extensively – then there’s a good chance an unseen app is transmitting information in the background. Most phones allow you to monitor data usage by app in your settings, so you can pinpoint if a particular app is consuming an unusual amount of data.

Unusual or Random Reboots and Shutdowns

My old Android used to do this from time to time, but it was usually when the battery was on its last leg. If your phone decides to restart or shut down on its own accord, especially when it has plenty of battery life, it could be a sign of malicious software interfering with its operating system. Spyware can sometimes cause system instability as it struggles to maintain its clandestine operations or if it’s poorly coded.

Strange Noises During Calls or Echoes

This one might sound a bit like something out of a spy movie, but it’s actually a legitimate concern. If you hear unusual background noises during your phone calls – static, clicks, faint voices, or an echo of your own voice – it could indicate that your calls are being monitored or recorded. While network issues can sometimes cause these, persistent and odd noises should make you suspicious.

Delayed Text Messages or Emails

Some forms of sophisticated spyware can intercept and hold messages before they reach you, or they might send copies of your outgoing messages to the attacker before they are truly sent. If your texts are arriving much later than usual, or if recipients report receiving your messages with a significant delay, it could be a sign of interception software at play.

Unfamiliar Pop-ups or Strange Messages

While some legitimate apps have pop-up notifications, a sudden influx of unusual pop-up ads, especially when you’re not even browsing the internet, could point to adware or even more malicious software. Similarly, receiving odd text messages with strange links or codes that you didn’t initiate could be part of a phishing attempt to install spyware, or an indication that your device is already compromised and being used to send out spam.

Difficulty Shutting Down the Device

If you try to power down your phone and it takes an unusually long time, or if it outright refuses to shut down, it could mean that a rogue application is actively preventing the system from closing properly. Spyware, designed to stay hidden and active, will often resist attempts to power down or restart the device, as this could interrupt its data collection and transmission processes.

If you’re noticing one or more of these symptoms, especially several at once, it’s time to move beyond suspicion and start digging a little deeper.

Digging Deeper: Technical Red Flags and What They Mean

Beyond the surface-level behavioral clues, there are more technical signs that can strongly indicate your phone has been compromised. These often require a quick dive into your phone’s settings and installed applications.

Unfamiliar Apps Installed

This is a big one. Go through your app list carefully. Do you see any apps that you don’t remember installing? Or apps with generic names like “System Service,” “Update Manager,” or strange, non-descriptive icons? Spyware often tries to masquerade as legitimate system tools or hides behind innocuous names. If you find an app you don’t recognize and can’t find a legitimate purpose for it with a quick online search, be extremely wary.

App Permissions Gone Rogue

Even legitimate apps can become problematic if they ask for excessive permissions. But with spyware, this is usually a given. Review the permissions for all your apps, especially those you suspect. Does a simple flashlight app really need access to your microphone, camera, or location? Does a calculator app need to read your contacts? Absolutely not. Spyware often requests broad permissions to access everything it needs to monitor you. On Android, you can go to Settings > Apps & notifications > App permissions to review this. On iOS, you can check privacy settings for each permission type (e.g., Photos, Microphone, Location Services).

Jailbroken or Rooted Device

Jailbreaking (for iPhones) or rooting (for Androids) removes security restrictions imposed by the manufacturer, giving users more control over their device. While some people do this intentionally, if your phone is suddenly jailbroken or rooted without your knowledge, it’s a huge red flag. Many advanced spyware programs require a rooted or jailbroken device to gain the deep access they need. You might find a new app icon for a rooting tool (like SuperSU or Cydia) that you didn’t install. If you suspect this, you can look up specific ways to check for rooting/jailbreaking for your phone model.

Suspicious Browser History or Bookmarks

Occasionally check your browser history and bookmarks. If you find websites you never visited, especially those promoting dubious services, adult content, or known malware sites, it could be that your phone has been redirected by malicious software or used by someone else. Similarly, new bookmarks you didn’t create might point to unauthorized access.

Unusual Activity on Online Accounts Linked to the Phone

If your phone is compromised, the spy might also gain access to your email, social media, or other online accounts. Look for signs like password reset emails you didn’t request, unrecognized login attempts from strange locations, or messages sent from your accounts that you didn’t compose. Always review security logs on your important online accounts (Google, Apple, Facebook, etc.) for suspicious activity.

Location Services Constantly Active

Many spyware apps heavily rely on location tracking to monitor your movements. If you notice your phone’s location services icon (a small arrow or pin) is constantly active, even when you aren’t using GPS-dependent apps like maps or ride-sharing, it might indicate persistent tracking. While some legitimate apps use background location, a constant drain on location services can be suspicious.

My own experience with a family member’s phone perfectly illustrates this. Their Android device suddenly had an app called “Service Updater” that they swore they didn’t install. It had permissions for location, microphone, and camera. A quick search revealed it was a common name for a basic spyware package often installed by someone with physical access. We immediately removed it.

Common Ways Your Phone Might Be Compromised

Understanding how your phone might get compromised can help you prevent future attacks and understand the current situation. It’s usually not magic, but a result of specific vulnerabilities being exploited.

Physical Access: The Easiest Way In

This is, by far, the most straightforward method for someone to install spyware. If an individual, such as a jealous partner, disgruntled ex, or overzealous parent, has brief physical access to your unlocked phone, they can easily install a monitoring app. Many commercial “stalkerware” apps are designed for quick installation with minimal interaction. This is why it’s crucial to always secure your phone with a strong passcode or biometric authentication and never leave it unattended.

Phishing and Smishing Attacks: Tricking You into Installation

These are social engineering tactics designed to trick you.

• Phishing (email): You might receive an email disguised as coming from a legitimate company (like your bank, a shipping service, or a government agency) containing a malicious link. Clicking this link could download spyware or direct you to a fake website that steals your credentials.
• Smishing (SMS/text message): Similar to phishing, but via text message. You might get a text about a package delivery problem, a “security alert,” or an urgent request from a “friend” with a link. Again, clicking it can compromise your device.

These attacks often play on urgency or fear to get you to act without thinking.

Malicious Apps: Disguised as Legitimate Ones

Sometimes, what looks like a harmless game, a utility app, or a flashlight can actually be a Trojan horse for spyware. While official app stores (Google Play Store, Apple App Store) have robust security, some malicious apps still slip through the cracks. More commonly, if you’ve ever “sideloaded” apps from unofficial third-party stores or downloaded APKs directly from websites, you’re at a much higher risk.

Public Wi-Fi Vulnerabilities: Unsecured Connections

While less common for direct spyware installation, unsecured public Wi-Fi networks can expose your device to various threats. Attackers can sometimes intercept your data, monitor your online activity, or even perform “Man-in-the-Middle” attacks, making it easier to push malicious content to your device if other vulnerabilities exist. Always use a Virtual Private Network (VPN) when connecting to public Wi-Fi.

Outdated Software: Exploitable Flaws

Your phone’s operating system (iOS or Android) and its apps regularly receive updates. These updates aren’t just for new features; they often include critical security patches that fix vulnerabilities. If you ignore these updates, you leave your phone exposed to known exploits that spyware creators might use to gain access to your device without your knowledge.

Taking Action: What To Do If You Suspect Spying

Finding out your phone might be compromised can be scary, but don’t panic. There are concrete steps you can take to diagnose and address the issue.

Checklist: Initial Diagnostic Steps

1. Review Your App List Thoroughly:
   • Go to your phone’s app settings and scroll through every single installed application.
   • Look for anything you don’t recognize, apps with generic names (e.g., “System Service,” “Device Admin”), or apps with odd icons.
   • If you find a suspicious app, do a quick online search for its name to see if it’s known malware or legitimate software.
2. Examine Battery Usage Statistics:
   • Navigate to your battery settings.
   • Check which apps are consuming the most power. If an unknown app or an app you rarely use is at the top of the list, investigate further.
   • Note any significant discrepancies between perceived usage and actual power consumption.
3. Monitor Data Usage:
   • Access your mobile data usage settings.
   • Identify any apps showing unusually high data consumption, especially in the background.
   • Compare current usage to your typical monthly average. A sudden, unexplained spike is a major warning sign.
4. Scrutinize App Permissions:
   • Go into your app permission manager (usually under Privacy or Apps in Settings).
   • Review the permissions granted to each app, particularly suspicious ones. Does a weather app need access to your microphone or camera? Probably not.
   • Revoke any excessive or unnecessary permissions, especially for apps you don’t trust.
5. Check for Rooting/Jailbreaking:
   • For Android: You can download a “Root Checker” app from the Google Play Store (use a reputable one) or look for applications like SuperSU or Magisk that are indicators of rooting.
   • For iOS: Look for the Cydia app icon. If it’s present and you didn’t jailbreak your phone, it’s a problem.
6. Run a Reputable Anti-Malware Scan:
   • Download and install a well-known, reputable anti-malware app from your official app store (e.g., Avast, Bitdefender, Malwarebytes, Norton).
   • Run a full scan of your device. These apps are designed to detect and often remove various types of spyware and malware.

Steps to Remove Spyware (If Found or Strongly Suspected)

If your diagnostic steps confirm your suspicions, or even if you have a very strong hunch, here’s how to proceed:

Disconnect from the Internet Immediately

This is your first move. Turn off Wi-Fi and mobile data. This cuts off the spyware’s ability to transmit any further data to the spy and potentially receive new commands.

Backup Essential Data (Carefully)

If you’re worried about losing photos or contacts, back them up. However, be cautious:

• For photos/videos: Use cloud services (Google Photos, iCloud) but ensure they are secure.
• Contacts: Most phones sync contacts to your Google or Apple account, which should be fine.
• Documents: Back up to a secure cloud or a computer.
• Avoid backing up app data or system settings: You don’t want to carry the spyware over to a new device or a clean install.

Uninstall Suspicious Apps

If you identified any suspicious apps in your review, uninstall them. Some spyware might try to prevent uninstallation by gaining “device administrator” privileges. You might need to revoke these privileges first.

• For Android: Go to Settings > Security > Device Admin apps (or similar, it varies by phone). Uncheck any suspicious apps, then try to uninstall normally.
• For iOS: There’s no “device admin” equivalent, simply delete the app by holding its icon until it wiggles and tapping the ‘X’.

Update Your OS and All Apps

Ensure your phone’s operating system and all your applications are updated to the latest versions. As mentioned, updates often contain critical security patches that can remove or neutralize existing threats.

Change All Your Passwords

Once you’ve addressed the potential spyware, change all your important passwords, especially for email, banking, social media, and any other sensitive accounts. Do this from a different, secure device if possible, not the potentially compromised phone.

Factory Reset (As a Last Resort)

If all else fails, or if you want absolute certainty, a factory reset is usually the most effective way to remove even persistent spyware. This will wipe your phone clean, returning it to its original factory settings. Make sure you have backed up all truly essential data *before* doing this.

• Before you do it: Ensure you know your Apple ID/Google Account credentials, as you’ll need them to set up your phone again.
• After the reset: When restoring your phone, only restore essential data like contacts and photos. Do not restore from a full backup of the potentially infected phone, as you might reinstall the spyware. Reinstall apps one by one from official app stores.

Inform Relevant Parties

If you suspect the spying is by a specific individual, especially in a domestic or legal context, you might want to consider documenting your findings and seeking legal advice or contacting law enforcement. This is particularly important in cases of harassment or stalking.

Fortifying Your Digital Defenses: Prevention is Key

The best offense is a good defense, especially when it comes to your phone’s security. By adopting some smart habits, you can significantly reduce your risk of becoming a victim of phone spying.

• Use Strong, Unique Passwords and Passcodes: This seems obvious, but it’s foundational. Don’t use easily guessable PINs (like “1234” or your birth year) or simple patterns. Opt for longer, complex passcodes or use biometric security (fingerprint, face ID) combined with a strong fallback password.
• Enable Two-Factor Authentication (2FA) Everywhere Possible: 2FA adds an extra layer of security. Even if a spy gets your password, they’ll need a second form of verification (like a code sent to another device) to access your accounts.
• Be Wary of Suspicious Links and Attachments: Treat unexpected emails or text messages, especially those with links or attachments, with extreme caution. If something looks off, it probably is. Verify the sender independently (e.g., by calling the company directly using a number you know is legitimate, not one from the suspicious message).
• Download Apps Only from Official App Stores: Stick to the Google Play Store for Android and the Apple App Store for iOS. These stores have security vetting processes, significantly reducing the risk of downloading malicious apps. Avoid “sideloading” or using third-party app repositories unless you’re an expert user who understands the risks.
• Review App Permissions Diligently: When you install a new app or when an existing app asks for new permissions, read them carefully. If an app is asking for permissions that seem unnecessary for its function, deny them or reconsider installing the app. You can always review and adjust permissions later in your phone’s settings.
• Keep Your OS and Apps Updated: Don’t procrastinate on those software updates! They often contain critical security patches that fix vulnerabilities before they can be exploited by attackers. Set your phone to update automatically if that’s an option.
• Use a VPN on Public Wi-Fi: A Virtual Private Network encrypts your internet traffic, protecting your data when you’re connected to unsecured public Wi-Fi networks in coffee shops, airports, or hotels. This makes it much harder for others on the same network to snoop on your activity.
• Regularly Check Your Phone’s Activity: Periodically review your app list, data usage, and battery statistics. Making this a regular habit can help you spot anomalies early before they become bigger problems.
• Physically Secure Your Device: Never leave your phone unattended and unlocked, even for a moment. This is a prime opportunity for someone to quickly install spyware. Treat your phone like you would your wallet or keys.
• Understand Social Engineering Tactics: Many attacks rely on tricking you into taking action. Be aware of tactics that create urgency, fear, or offer something too good to be true. A healthy dose of skepticism is your best friend in the digital world.

Separating Fact From Fiction: Common Misconceptions

The world of phone security is ripe with myths and misunderstandings. Let’s clear up a few common ones:

“My phone calls are always bugged, and my camera is always watching me.”

While government agencies with proper warrants *can* potentially intercept communications, and advanced spyware *can* activate your microphone/camera, it’s not a constant, pervasive threat for the average person. Most individuals aren’t targeted by such high-level surveillance. The fear often comes from Hollywood portrayals. For personal spyware, it has to be installed, and it leaves traces. A general feeling of paranoia without any specific signs is usually unfounded.

“Anyone can easily spy on my phone without even touching it.”

While there are sophisticated “zero-click” exploits (like NSO Group’s Pegasus spyware) that can compromise a phone remotely without any interaction, these are extremely rare, highly expensive, and typically reserved for targeting high-value individuals like journalists, activists, or government officials. For the vast majority of people, spyware requires either physical access to the device or tricking the user into clicking a malicious link or installing an app.

“Antivirus apps are useless on phones.”

This is simply untrue. While mobile operating systems like iOS and Android have built-in security features, dedicated anti-malware apps from reputable vendors provide an additional layer of protection. They can detect and remove known spyware, phishing attempts, and other malicious software that might slip past the operating system’s defenses. Think of them as a vigilant guard dog complementing your home’s locks.

When to Seek Professional Help

Sometimes, despite your best efforts, you might feel out of your depth, or the situation might be more complex than you can handle alone. Here’s when calling in the pros is a good idea:

Persistent Issues

If you’ve followed all the steps for diagnosis and removal, including a factory reset, and your phone still exhibits suspicious behavior, it might indicate a very sophisticated piece of malware or a deeper hardware issue. A professional forensics expert or a trusted cybersecurity firm can perform a more in-depth analysis.

Lack of Technical Confidence

Not everyone is comfortable digging through settings or performing advanced troubleshooting. If you feel overwhelmed or unsure about any of the steps, it’s perfectly fine to seek help. A local reputable phone repair shop or an IT security consultant might be able to assist.

Evidence of Serious Threats

If you have concrete evidence that your personal safety or financial security is at severe risk, or if you suspect the spying is part of a larger criminal activity, it’s crucial to seek professional help. This could involve contacting law enforcement, a domestic violence support organization, or a legal professional who specializes in digital privacy.

Legal Implications

In cases where the spying has legal ramifications, such as a breach of privacy in a divorce case, workplace surveillance, or a stalking situation, you’ll want to consult with an attorney. They can advise you on documenting evidence and the legal steps you can take.

Frequently Asked Questions

How do I check for spyware on my iPhone/Android?

Checking for spyware on an iPhone or Android device involves a similar set of diagnostic steps, though the navigation in settings might differ slightly.

For both iPhone and Android:

• Review App List: Carefully go through all installed apps. Look for any unfamiliar applications or apps with generic names that you don’t recall installing. Uninstall anything suspicious.
• Check Battery Usage: Go to your phone’s battery settings and see which apps are consuming the most power. Unusually high consumption by an unknown app is a red flag.
• Monitor Data Usage: Check your mobile data usage in settings. Look for any apps transmitting unusually large amounts of data, especially in the background.
• Review Permissions: Inspect the permissions granted to your apps. If a seemingly innocuous app has access to your microphone, camera, location, or contacts without good reason, revoke those permissions.

Specific to Android:

• Check Device Admin Apps: Some sophisticated spyware tries to gain Device Administrator privileges, making it harder to uninstall. Go to Settings > Security > Device Admin apps (the exact path might vary). Disable any suspicious apps from this list before attempting to uninstall them.
• Run an Antivirus Scan: Download a reputable antivirus/anti-malware app from the Google Play Store (like Malwarebytes, Bitdefender, Avast) and run a full scan.
• Check for Rooting: You can use a “Root Checker” app from the Play Store to see if your device has been rooted without your knowledge.

Specific to iPhone:

• Check for Jailbreaking: Look for the Cydia icon on your home screen. Cydia is an app store for jailbroken iPhones; if it’s there and you didn’t jailbreak, your phone might be compromised.
• Review Location Services: Go to Settings > Privacy > Location Services. Review which apps have “Always” access and consider turning off location for apps that don’t absolutely need it.
• No Antivirus for iOS: While there are security apps for iOS, they primarily focus on web protection and VPNs, not direct malware scanning of the OS like on Android, due to Apple’s strict app sandboxing. Your best defense is a clean restore if you suspect a breach.

Can someone spy on my phone without touching it?

In most common scenarios, for someone to install typical consumer-grade spyware (often called “stalkerware”), they would need physical access to your device. This allows them to quickly install an app, change settings, or perform a jailbreak/root if necessary.

However, there are advanced, highly sophisticated forms of spyware (like NSO Group’s Pegasus) that can compromise a phone remotely without any physical interaction or even a user clicking a link. These are known as “zero-click” exploits. These are extremely rare, incredibly expensive, and are typically developed and used by nation-states or very well-funded organizations to target high-value individuals (journalists, human rights activists, politicians). For the average person, the risk of such a “zero-click” attack is minimal to non-existent.

More commonly, remote spying without physical access relies on social engineering. This means tricking you into taking an action, such as clicking a malicious link in an email or text message (phishing/smishing), or downloading a seemingly legitimate app that is actually malware. So, while direct physical contact is often necessary for easily accessible spyware, sophisticated attacks or user error can lead to remote compromise.

Does a factory reset remove all spyware?

For the vast majority of consumer-grade spyware and malware, a factory reset is highly effective. A factory reset wipes all user data, installed applications, and settings, returning your phone to its original “out of the box” state. This process typically removes any third-party spyware or malicious apps that were installed on the device.

However, there are a few very rare exceptions:

• Firmware-level malware: Extremely sophisticated malware can sometimes reside in the phone’s firmware (the underlying software that controls the hardware). Such malware is incredibly difficult to remove and usually survives a factory reset. This type of threat is exceedingly rare for the average user and is typically associated with state-sponsored attacks or highly targeted industrial espionage.
• Backup and Restore issues: If you perform a factory reset but then restore your phone from an infected backup, you might inadvertently reinstall the spyware. It’s crucial, if you suspect spyware, to set up your phone as new after a factory reset and selectively restore only essential data (like contacts and photos) rather than a full system backup.

So, for practical purposes, if you’re dealing with common spyware or stalkerware, a factory reset is generally considered the most thorough and reliable method of removal.

What are the signs of a stalker app?

Stalkerware (or spouseware) is a specific type of spyware designed to secretly monitor another person’s activities, often by someone they know, like a partner or family member. The signs are generally the same as other spyware, but with a few key behavioral nuances:

• Physical Access is Key: Stalkerware is almost always installed via physical access to your unlocked phone. If your device was left unattended or a partner had access, this increases suspicion.
• Unexplained Knowledge: The most unsettling sign might be a person (e.g., a partner, ex, or family member) knowing details about your private conversations, movements, or activities that they shouldn’t possibly know. They might reference specific texts, locations you’ve visited, or phone calls.
• Battery and Data Drain: Like all spyware, stalkerware constantly transmits data, leading to rapid battery drain and unexplained increases in mobile data usage.
• Performance Issues: Your phone might become noticeably slower, crash frequently, or behave erratically due to the stalkerware running in the background.
• Suspicious Apps: Look for unfamiliar apps with generic names (e.g., “System Update,” “Backup,” “Service”) or hidden icons. These apps might also have extensive permissions granted.
• Location Services Constantly On: If your phone’s location services indicator is consistently active, even when you’re not using maps or GPS-dependent apps, it could be a sign of constant tracking.
• Messages or Calls Intercepted: While harder to detect, signs like delayed messages, an acquaintance mentioning messages you didn’t send, or strange noises on calls could be indicators.

If you suspect stalkerware, consider seeking help from a domestic violence support organization, as this is often a component of abusive relationships.

Is it illegal for someone to spy on my phone?

In most jurisdictions in the United States, it is generally illegal for an individual to install spyware on another person’s phone without their consent. This act can violate various state and federal laws, including wiretapping laws, computer fraud and abuse acts, and privacy statutes. The legality often hinges on whether the person being monitored has a “reasonable expectation of privacy.”

However, there are nuances and specific contexts:

• Consent: If the phone owner explicitly consents to monitoring, it might be legal.
• Parental Monitoring: Parents often have legal rights to monitor their minor children’s phones, but even this can have limitations based on age and state laws.
• Employer Monitoring: Employers can often monitor company-owned devices, especially if employees are informed of the policy. Monitoring personal devices, even for work purposes, is usually more restricted.
• Legal Exceptions: Law enforcement agencies, with a valid warrant or court order, can legally intercept communications and access devices.

If you believe someone is illegally spying on your phone, it’s crucial to consult with a legal professional who specializes in privacy laws or cybercrime. They can provide advice specific to your situation and jurisdiction, and guide you on documenting evidence and potential legal recourse.