Facebook is expanding its support of physical security keys for two-factor authentication (2FA) on mobile devices, the company said in a blog post Thursday. The social platform has supported security keys for its desktop version since 2017, but starting today, it will let users on its iOS and Android apps use them to secure their accounts as well.
Two-factor authentication provides another layer of support for online accounts, requiring users to log in with their password and an additional piece of information, usually a numeric code generated by a third-party system. Without both pieces of information, it’s much harder for someone to access your account even if they have your password.
“We strongly recommend that everyone considers…