What's a verification code, and why are they so important? Six-digit verification codes are a form of two-factor ...

What's a verification code, and why are they so important? Six-digit verification codes are a form of two-factor authentication, a process that helps keep your important online accounts secure. For ...

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'd ...

A recent ping from a reader reminded me that I’ve been meaning to blog about the security limitations of using cell phone text messages for two-factor authentication online. The reader’s daughter had ...