32 million Twitter logins have reportedly been put up for sale online for the price of roughly £4,000, or ten bitcoins.
Discovered on a website named Leaked Source, which has built a database of login data that has been stolen or leaked, the database was shared by Tessa88, a user on the website.
Containing 32,888,300 records which each contain an email address, username and password, Leaked Source said that, "We have very strong evidence that Twitter was not hacked, rather the consumer was."
In a statement, Twitter said it was "confident" that the data did not emerge from a data breach of its website. Currently Leaked Source suspects the data was stolen by a virus.
In a tweet sent soon after it blogged about the data going on sale, Leaked Source said it had been contacted by Twitter's security staff who would now "forcibly" protect users from the data in the list.Michael Coates, Twitter's information security officer confirmed it was working with Leaked Source on using credential data in the list to help users. Coates added: "We have investigated reports of Twitter usernames/passwords on the dark web, and we're confident that our systems have not been breached."