Usernames and passwords of Twitter members using file-sharing application TweetGif have been leaked to the internet by a hacking group.
“LulzSec Reborn” spilled around 10,000 personal details of TweetGif users - including real names and locations.
TweetGif allows users to share and post animated gif images, using their Twitter log in.
The group posted the details to Pastebin directing users to download the .SQL file containing the user data.
But a spokesperson for Twitter said TweetGif’s use of authorisation protocol OAuth safeguarded its user's passwords.
"We can confirm that all Twitter account passwords have remained secure, and no breach of our systems has occurred in connection with the events experienced by TweetGif. Regarding how TweetGif was compromised, we can't speak on their behalf,” in said in a statement to the Huffington Post.
The so-called LulzSec Reborn first appeared in March claiming to be a reformed version of the disbanded LulzSec collective - a group which fell apart after the FBI arrested core members.
It previously targeted military dating site MilitarySingles.com, dumping what it claimed to be the email details of 171,000 members of the US military.