Review the devices signed in to your account, sign them out remotely, and understand the New device sign-in alert and what to do if it wasn't you.
The Your devices section of the Security page lists every browser and device that has signed in to your account — with its approximate location, IP address, when it was first seen and when it was last active. Your current browser carries a This device badge.
A signed-out device's next sign-in is treated as unrecognized: it triggers a fresh alert and, if you use 2FA, the full two-factor prompt.
Whenever your account is accessed from a device it hasn't used before, MarketplaceHub emails you — subject "Did you just sign in from …?" — with the device, approximate location, IP address and time, plus an in-app Security notification. This alert is always sent; muting the Security category hides only the in-app copy, never the email.
Tell us what you were doing and what happened — the notification text or a product SKU helps us find it fast.