It is only a matter of time before viruses and other malware become common on a range of types of computers, and not just PCs. At least that’s what we’re constantly being warned of by anti-virus companies.

This looks highly plausible, but there has not been much evidence of it so far. There have been a few incidents on mobile phone malware, but nothing to terrify ordinary users. Car viruses are hardly an everyday worry for motorists, and we have yet to track down a single confirmed incident on a set-top box.

Last week, however, one did turn up rather unexpectedly for Sony’s Playstation Portable. The Trojan PSPBrick.VoR (as it is named by Symantec) does some rather nasty things to any gamer unfortunate enough to download it, deleting system files and turning it into an expensive piece of electronic furniture.

There’s no panic here. Users have to download it as a purported games hack to downgrade their firmware (newer versions stop homebrew code from running so easily, hence the desire). It has not even been reported in the wild, so it can be readily classified as a “concerning” but theoretical threat. Who cares about games users and their hack code anyway?

Anyone looking for help from Sony, is unlikely to get any. Homebrew users are asking for it anyway, or so the thinking might go.

It appears that the rival Nintendo DS portable console might also have its first piece of malware.

So malware is migrating to platforms other than PCs, but only slowly. Windows PCs are just to tempting, too easy a target. Nevertheless, it’s hard to tell whether the world is ready to protect itself on several fronts at once, including on proprietary platforms that don’t integrate with mainstream computing.