Old threats are making a comeback, but always with something new in tow. Despite additional layers of protection in the form of sandboxing, cybercriminals continued to exploit bugs in all-time favorite application targets. Botnets that were thought dead got a new lease on life. Threats known to target only computers in the past are also starting to plague their handier counterparts—mobile phones and tablets. And tried-and-tested RATs are making their presence felt over and over again.