Twitter users are being urged to change their passwords following a glitch.
The social network disclosed the issue in a blog post and series of Tweets on Thursday afternoon, saying it had resolved the problem and an internal investigation had found no indication passwords were stolen or misused by insiders. Still, it urged all users to consider changing their passwords.
"We fixed the bug and have no indication of a breach or misuse by anyone," Chief Executive Jack Dorsey said in a tweet.
"As a precaution, consider changing your password on all services where you've used this password."
The blog did not say how many passwords were affected. A person familiar with the company's response said the number was "substantial" and that they were exposed for "several months."
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