“We are confident that these usernames and credentials were not obtained by a Twitter data breach — our systems have not been breached,” a Twitter spokesperson said in an email reply to an AFP inquiry. “In fact, we’ve been working to help keep accounts protected by checking our data against what’s been shared from recent other password leaks.” According to LeakedSource.com, tens of millions of Twitter credentials are being traded on the “dark web,” a section of the Internet accessed by special software.