Farm town - Grow your own malware

A Facebook game with more than 9 million users has been caught serving ads that try to trick viewers into installing malware.

Hundreds of users of Farm Town have reported seeing the ads, which falsely claim the user's PC is infected and can only be fixed by buying and running the anti-virus software being advertised, according to this forum. Farm Town developer SlashKey warned users to ignore the ads but failed to suspend third-party adverts, much to the anger of security experts.