Secure your accounts

Two-factor authentication usually relies on a code being sent to your smartphone which you then enter on your device to prove you are who you say you are. — dpa

Internet accounts can be better protected from hackers using a ­second “key” to get in, a method known as two-factor authentication, which is being offered by a growing number of services.

In many cases, this safeguard will be suggested when creating a new account, explains Dennis Schirrmacher of the computer ­magazine c’t.