Google+ is barely a few days old, but the criminal element already is capitalizing on users' interest in joining the new social networking service, according to Sophos. Researchers at the security firm have spotted a new campaign in which junk mailers are blasting out pharmacy spam disguised as invites to the online sharing portal. "[C]licking on the links will not take you to the new social network, but a pharmacy website set up to sell the likes of Viagra, Cialis and Levitra to the unwary," wrote Graham Cluley, senior technology consultant at Sophos, in a Friday blog post.