User:Johan (WMF)/Session pollution

Looking for reports of users being logged in as someone else

Hi all,

we had reports of a serious authentication error that resulted in people being logged into the wrong account. We are trying to collect information about what happened, and how many users it might have happened to. If you have any knowledge of such a thing happening in the last few weeks, please tell us at one of these places:

• https://phabricator.wikimedia.org/T126069
• mw:User_talk:Tgr (WMF)/Session pollution
• gtisza@wikimedia.org

You can find more details at phab:T126069.