Change your password if you use or are part of the Nexus Mods community.

Popular mod community Nexus Mods may have had security breached.

The issues came to light over the weekend, with the owner stating it's difficult to tell for sure whether a breach has occurred.

In addition, three authors of Fallout 4 mods have reported that files have been changed, a situation described as "highly suspicious". The three mods in question are Higher Settlement Budget, Rename Dogmeat and BetterBuild.

"I was first tipped off to a problem late on Friday night when a link to a Reddit post was sent to me about a possible breach," explained Dark0ne.

"The post explained that a security firm that looks after (or helps with the security for) several universities in America had contacted the IT departments who had then contacted the university network users about a database breach at Nexus Mods.

"While it seems clear cut that we've had a breach from that email, unfortunately, it's too ambiguous to draw any concrete conclusions. We indeed had a database breach several years ago when hackers gained entry to our systems by hacking our file server hosts (a horrible way to be hacked, when it's not even directly your fault), so this could potentially be a result of that previous leak, or it could be a result of recent database breaches at other major networks (like the Playstation Network, EBay or otherwise) and hackers correlating information from reused passwords, or any number of things.

There's more information through the link, but essentially you should change your password to be on the safe side.