debian-mirror-gitlab/doc/user/profile/unknown_sign_in_notification.md

type	stage	group	info
concepts, howto	Manage	Access	To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers

Email notification for unknown sign-ins

Introduced in GitLab 13.0.

When a user successfully signs in from a previously unknown IP address, GitLab notifies the user by email. In this way, GitLab proactively alerts users of potentially malicious or unauthorized sign-ins.

There are two methods used to identify a known sign-in:

• Last sign-in IP: The current sign-in IP address is checked against the last sign-in IP address.
• Current active sessions: If the user has an existing active session from the same IP address. See Active Sessions.

Example email