The world’s most popular antivirus software:
172,508,502 registrations and growing

Antivirus and anti-spyware engine
Innovative scanning engine protects against viruses, spyware, and other malicious agents.
Real-time anti-rootkit protection
Prevents stealth malware (‘rootkits’) that, when loaded by the computer’s OS, are invisible to ordinary scanners.
Silent Firewall  avast! Internet Security only
Stops hackers, using heuristic and behavioral analysis and a white list of safe applications.
Antispam  avast! Internet Security only
Comprehensive spam and phishing filter, which works as a plug-in to MS Outlook and a generic POP3/IMAP4 proxy for other email clients.
avast! WebRep
Provides website reliability and reputation ratings according to community-provided feedback.
avast! CommunityIQ
Our technology uses a global network of sensors to provide us with data taken (anonymously) from the actual web-browsing experiences of an opt-in group of avast! users. This info is then used to protect all avast! users with the most up-to-date information on viruses and infected websites.
Because of avast! CommunityIQ, avast! has discovered 264,048 infected websites and protected 33,786,280 people from visiting them in the last 30 days.


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