Facebook announced Thursday that it is adding two more security features to its network, aimed at helping its users stay secure.

The first feature is called “Trusted Friends.” Facebook has started testing this feature, also called “guardian angels,” which lets users choose three to five friends to help them unlock their account in case they don’t have access to their e-mail account.

“It’s sort of similar to giving a house key to your friends when you go on vacation—pick the friends you most trust in case you need their help,” wrote Facebook’s Security team in a company blog post. Facebook will send codes to your friends that they , in turn, can pass on to you to regain access to your account.

Facebook also introduced a new authentication feature for third-party applications that use Facebook’s log-in features. Instead of using your Facebook password for all of these applications, the site will let you generate a unique password for separate apps.

To generate these passwords, users can head to the security settings on their Facebook accounts, and select “app passwords.”

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