You’re never 100% safe from cyberattacks, no matter how careful you are. From malware to viruses to breaches, the best you can do is take precautions to lower your risk.

You may think it’s easy to detect a hacker on your phone. It’s not. The longer a hack goes undetected, the more damage it can do. Tap or click here to learn about signs that your phone is under attack.

Your first line of defense is an antivirus program. While it’s easy to turn to the countless free apps you can find online, remember that nothing is truly free. Keep reading to see why free antivirus apps are a terrible idea and one solution to protect all your devices.

Researchers at Cybernews looked at the 40 highest-ranking cleaning and antivirus apps on the Google Play Store. These apps have collectively been downloaded close to a billion times. Yikes!

You would think the most popular apps would be the best options. If so, you’re wrong.

Learn the tech tips and tricks only the pros know.

Here are the three worst offenders by tracker count:

Super Antivirus and Virtual Guard were the only apps found to be completely free of trackers.

RELATED: Check your phone – Antivirus apps caught spreading banking malware

Mobile Security Framework (MobSF) is a mobile app that tests, analyzes and assesses the security level and vulnerability of apps for Android, iOS and Windows. Cybernews compiled a list of apps according to the MobSF security score, ranging from zero to 100.

The three lowest MobSF scores on the list were as follows:

The three highest MobSF scores were better but still not great:

The report shows that six of the apps contained “likely malicious links,” which can be used to steal your private information, banking credentials and more.

Malicious links were detected in the following apps:

Aside from tracking you, antivirus apps that advertise themselves as free more often than not make up for it by other means:

RELATED: Antivirus isn’t just for your computer – Here’s why you should protect your smartphone, too

If you installed any of the antivirus apps mentioned in the study or others that you got for free, you should get rid of them now. Here’s how:

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