A 4-digit iPhone passcode is about as insecure as it gets, and this black box can figure yours out in just a few days. So it's time to consider better security.

Consider increasing your security by switching over to a 6-digit PIN on your phone or computer. Most platforms already default to 6-digit PINs, but if you're using a less secure 4-digit variant, I ...

Many of us use the same 4-digit code for everything. Phones, credit cards, and even padlocks. A new report has shown that millions of people are using identical PIN codes, making phones and bank ...

There are 10,000 four-digit combinations that can be formed using the numbers 0-9, however many use the same ones. DataGenetics says thieves can correctly guess more than 25 percent of PIN codes ...