Shares of Twitter were down over 4 per cent on reports that a database containing nearly 33 million usernames and passwords for the social-blogging service was made public.
The website that published the Twitter passwords, LeakedSource, says it has more than 1.8 billion records in its database. LeakedSource sells access to these records for a fee.
Michael Coates, Twitter's trust and information security officer, said the company is "quite confident" that the records weren't stolen from Twitter's computers. There is "no indication that we have been compromised," he said.
Meanwhile, shares of the company closed on Friday at USD 14.02, down 4.01 per cent on the NYSE.