If you use a four-digit PIN number, your personal code may not be as secure as you think. PIN codes are commonly used to unlock iPhone or Android devices, access online banking, get cash out of an ATM ...

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.

While setting up a lock screen PIN on your Android or iPhone, there's always the fear that you might forget it one day. That's especially true if you usually rely on quicker methods without a password ...

Scams and spam are becoming more common on WhatsApp. For example, some people receive fake messages from supposed individuals like Rosa Caro Serrano, or get tricked by attempts to steal their accounts ...