Performance

The Top 5 Symptoms of a Hacked Smartphone

There are a lot of reasons that your smartphone may be acting abnormally. It may be because of a damaged battery, or it may be due to a factory flaw. But, it could be something else. If you recently downloaded a new app, downloaded a file, or clicked on a questionable link, you could have malware on your device. If your Android is suddenly behaving unusually, don’t waste another second. Run a Full Virus Scan to check for any security threats on your phone and SD card:

The Full Virus Scan will check all files and programs for malware. This will help you to determine if your phone has been behaving strangely due to spyware or a virus. Any malware that is found on your device will be quickly removed. The following are 5 signs your smartphone has been hacked. If you can recognize the signs of a hacked smartphone in time, you can remove the malware before it is able to fully compromise your device — and your personal information.

Read More: How to Protect Yourself from Social Engineering Attacks

  1. Your Battery Life is Much Shorter

A hacked smartphone will have a much shorter battery life. If your phone is suddenly dying after a few short hours, it could be because spyware or another type of malware is running in the background.

  1. Your Android is Performing Poorly

Your phone may be performing poorly due to a lack of memory, but it could also be due to malware running in the background of your phone. If your phone is suddenly lagging behind, freezing, refusing to load certain apps or web pages, or overheating, there may be malware on your phone.

  1. Your Data Usage Has Increased

If your phone bill shows a serious spike in data usage and other unusual charges — such as calls and texts to international numbers — then a hacker has gained access to your device. Although you may not notice this until your phone bill arrives, you can also check the data usage for each app on your phone. If one app — particularly an app you recently downloaded — is using much more data than it should be, then the app is likely malicious.

  1. Adware and Pop-Ups Have Appeared

This is a more obvious sign of a hacked smartphone. If pop-ups and advertisements are now appearing on your device, then your phone is surely infected.

  1. Your Android is Sending Unusual Messages

If friends, family, or acquaintances say that they receive a strange text, email, or Facebook message from you, then your phone and accounts have likely been hacked. If you’ve started to receive a lot of strange phone messages recently, this could also be a sign that a hacker has compromised your phone.

PSafe Newsroom

The dfndr blog is an informative channel that presents exclusive content on security and privacy in the mobile and business world, with tips to keep users protected. Populated by a select group of expert reporters, the channel has a partnership with dfndr lab's security team. Together they bring you, first-notice news about attacks, scams, internet vulnerabilities, malware and everything affecting cybersecurity.

Recent Posts

Android Security Update: Check the August Patch

Google published the August 2026 Android security update bulletin on August 3, with patch levels…

57 years ago

Does Leaving Wi-Fi On Drain Your Phone Battery?

Do you turn Wi-Fi off whenever you leave home because you expect your battery to…

57 years ago

Google Drive Stopped Photos Backup: What Changed

A Google backup change can be easy to miss. As of August 10, 2026, Drive…

57 years ago

IC3 Scam: How to Spot Fake FBI Recovery Offers

Would you trust someone who claims to work for the FBI, knows details about a…

57 years ago

QR Code Scam: How to Spot a Fake QR Code Before You Scan It

Do you check a QR code before you scan it? A QR code scam takes…

57 years ago

How to Lock Apps on Android With a PIN, Password, or Fingerprint

Want to know how to lock apps on Android with a PIN, password, pattern, or…

57 years ago