Hardware graphics giant NVIDIA has suspended its user forums after hackers accessed usernames, email addresses and salted passwords.

The company began investigating the intrusion on 2 July when it suspended the forums for “system maintenance” before announcing the breach hours ago.

“We apologise that our continuing investigation is taking this long. Know that we are working around the clock to ensure that secure operations can be restored,” the company said in a statement.

It said users’ public-facing ‘about me’ pages were accessed in the breach and noted they may have included user title, age, birthdate, gender, location, interests, email and website URLs.

NVIDIA would deploy “additional security measures” but did not specify what they would include.

User passwords would be reset when the forums were re-activated.

The company urged users to reset forum passwords reused on other web sites and warned customers to not reply to phishing emails asking for sensitive information.