Boost your Facebook and Instagram security in 2025 with two-factor authentication—learn how to set it up, manage devices, and protect your accounts now ...

These two-factor authentication codes ensure no one else has access ... as well as a wide variety of other online accounts, including Slack, Facebook, and financial institutions.

However, on all other account types (Facebook, Google ... add your username and it’ll then ask you for a code from the app. Both two-factor authentication apps offer similar functionality.