How Much Does Webroot SecureAnywhere AntiVirus Cost? It’s a different approach from most competitors, but our tests show that it works well. If it’s malicious, the tiny local Webroot program wipes out the attacker and reverses its actions. When it encounters an unknown app, it runs it in a bubble, preventing the app from making any permanent system changes until its cloud-based intelligence reaches a conclusion about the program. Webroot SecureAnywhere AntiVirus avoids the whole problem by using a completely different technique. In any case, the never-ending proliferation of malware would have required an always-growing database. Malware writers quickly learned to write polymorphic programs that mutate slightly with each new copy, foiling simple signature-based detection. These signatures were elements of malware files that remained invariant, and hence could be used for identification. The earliest antivirus utilities recognized malware by consulting a database of signatures.
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