Security firm Finjan has alerted users to a particularly insidious new Trojan which infects Windows-based systems and steals money from on-line banking systems.

Microsoft has released its Security Essentials, a free anti-virus, anti-spyware, and anti-malware package for Windows - and reviews are positive.

Peripheral manufacturer Razer has taken down its support site following reports that it was unwittingly distributing a worm dropper as part of several driver update packages.

An update for Grisoft's AVG anti-virus package misdiagnosed iTunes libraries as being Trojan Horse applications, panicking users and disabling iTunes, iTunesRegistry.dll, iTunes.dll, small.bog, trojan

Microsoft's in-house anti-virus, Security Essentials, has hit public beta status - although it's limited to the first 75,000 downloaders at present.

Microsoft is planning to release a free anti-virus service that it says its employees are already testing in house.

Anti-virus vendors Symantec and McAfee have been find $375,000 each after New York's attorney general found they had mislead customers over subscription renewals.