Twitter has previously been warned about this kind of vulnerability but it had repeatedly denied it as a problem.
For about 20 minutes on Friday afternoon, Dorsey’s account tweeted a series of racist and otherwise offensive tweets.
Twitter acknowledged that it was aware that the account had been “compromised” and was investigating what happened. The offending tweets were deleted less than 30 minutes after the initial breach.
Finally the company in a tweet said “The account is now secure, and there is no indication that Twitter’s systems have been compromised.”