A marketing website used to promote the open source Firefox web browser has been hacked, and personal details of tens of thousands of Firefox supporters may have been compromised.
The spreadfirefox.com website, which is run by the Mozilla Foundation, was shut down for several days last week by the attack.
It is believed the attackers were trying to use the website as a vehicle to send out spam.
Mozilla is encouraging the site’s estimated 100,000 users to log in and change their passwords as a way of protecting their personal data held by the site.
Spreadfirefox.com has been used to raise cash from open source advocates to help advertise and market Firefox.