Update: Added Wikimedia Foundation's statement below and made a correction to denote it was only the Meta-Wiki that was vandalized. The Wikimedia Foundation suffered a security incident today after a ...

Wikipedia briefly went into "read-only mode" this morning and disabled article editing after a malicious piece of code was detected that could delete entries. Initially, Wikipedia editors uncovered ...

A serious security incident occurred across Wikimedia projects, including the online encyclopedia Wikipedia, on March 5, 2026. The issue compromised an administrator account at the Wikimedia ...

Initially, Wikipedia editors uncoveredevidence that the Wikimedia Foundation, the nonprofit that oversees the online encyclopedia, seemed to be fending off a vandalism attempt. An automated attack was ...