Russian Teen Accused of Writing Target Malware

Target's data breach, which has left tens of millions of payment cards compromised, was carried out using off-the-shelf malware authored by a 17-year-old Russian, according to security firm IntelCrawler. Officials believe that the Target breach was just one of several attacks carried out over the holiday period. Neiman Marcus Group says that it has also been hacked, and a report authored by government agencies and security firm iSight Partners suggests that several other firms could have been hit.