Mamutu 1.7 is a tool that takes a pro-active approach to security. It doesn't rely on security updates, but attempts to evaluate a potential threat by behaviour. Don't think Mamutu is new to this kind of pro-active prevention. The PC Tools ThreatFire uses a similar approach and PC Tools recently added this to Spyware Doctor 6 and other security developers are doing the same thing. So you'd have the best of both worlds - behaviour analysis and old-fashioned definition updates.
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