Two-factor codes and your devices
Add an authenticator app so a code is needed to sign in and to withdraw, and see every device that is signed in.
In Account, then Security, you can turn on two-factor authentication with any authenticator app. Once it is on, a six-digit code is needed to sign in and to request a withdrawal.
The same page lists every device that is signed in to your account, with when it was last active. You can sign any of them out. If you see a device you do not recognise, sign it out and change your password.
When your account is signed in from a new device and you have a confirmed email address, we send you an email saying so.