Forbes contributors publish independent expert analyses and insights. Davey Winder is a veteran cybersecurity writer, hacker and analyst. Keeping your iPhone or Android device secure is a no-brainer.

Android offers a number of ways to lock down your device. There is the classic pattern lock, PINs, passwords, and the gimmicky face unlock. These options (mostly) get the job done, but a passcode that ...

Researchers at security company ESET have found a type of malware that changes an Android device’s PIN, the first of its kind in an ever-evolving landscape of ransomware attacks. For most users, the ...

Android: Four-digit PIN codes for your Android lock screen may not be enough security, depending on your situation. TimePIN changes the PIN code dynamically to make it harder for someone to gain ...

Update, May 26, 2025: This story, originally published May 24, has been updated with a brief history of PIN codes, information regarding the most secure codes you can use and why 8068 really isn’t the ...

What's safer? Using a numeric PIN code to unlock your Android smartphone or relying on a finger squiggle? Newly-released research suggests that, at least when someone close by could be looking over ...

The Chameleon Android banking trojan has re-emerged with a new version that uses a tricky technique to take over devices — disable fingerprint and face unlock to steal device PINs. It does this by ...

Smartphones today compete over which can best secure your secrets. They encrypt your data, store the digital keys to unlock themselves on specialized hardware, and even offer fancy biometrics from ...

If you forget your Android phone password, don’t worry—you can still access your device. This guide explores whether a universal unlock pin or pattern exists for Android devices and offers ways to ...