HTTP header ends in own goal
Twitter on Thursday warned of an esoteric bug that, in limited circumstances, allowed users' non-public profile information to potentially fall into the hands of other users.
If you used Firefox on a shared PC to, for example, send or receive media in private Twitter messages, or download an archive of your profile that contained non-public information, be aware this data was inadvertently cached on the computer.
Picture this scenario, for instance: you share a PC at home with family. You have one user account between you all. You log in, open Twitter in Firefox, and send and receive some funny GIFs in private messages. You then log out of Twitter, close Firefox, and log out of the computer. Someone else in your home then logs into that computer account, and they'll be able to find a cached ..
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