Antivirus and malware protection programs are great, but they have a fatal flaw: they can only protect your PC from threats they know about. It's not a terrible problem, but it gives attackers a brief window of opportunity to harm your computer every time they tweak their code. If a PC hasn't nabbed the latest update to its protection suite, it's vulnerable -- but it doesn't have to be that way. Researchers are using deep learning algorithms that can spot new malicious code naturally, without database updates.