See every browser signed in to your account

Last month you checked a dashboard on a client's laptop. Is that browser still signed in to your account? Until today you had no way to find out.
The enemy is a forgotten session that stays open for whoever sits down next.
Connected devices in Account settings now starts with Browser sessions: every browser signed in to your account, with the browser and system, an approximate location with its IP address, when it signed in and when it was last active. The browser you are using is marked This device. Sign out closes one session, and Sign out all other sessions closes every one except yours. Both ask you to confirm first with your authenticator code or passkey, your password, or a code we e-mail you. The computers and AI tools you connected with the CLI are listed below, each with its own Disconnect button.

You also hear about a sign-in you did not expect. When your account is used from a network you have not used before, by a browser, the CLI, an API key or an agent token, we e-mail you the time, approximate place, IP address, device and how it signed in. Yes, it was me remembers that network. No, secure my account takes you straight to this list to sign out everything else, then asks for a new password. That link works once, for 30 minutes. The first network an account uses never triggers an e-mail, you get at most five a day, and for the first week after launch we only learn the networks you already use.
Try it: open Account settings, Connected devices.