Avast Internet Security is a legacy premium antivirus suite designed to help protect Windows PCs from viruses, malware, ransomware, phishing emails, malicious websites and unauthorised network access. Its feature set included real-time antivirus shields, a firewall, Ransomware Shield, Real Site protection against fake websites, Sandbox for testing suspicious files, Anti-Spam and webcam protection. Avast has since retired the Internet Security product name from direct sale and moved eligible existing subscribers to Avast Premium Security. A listing for an Avast Internet Security key may therefore refer to an older subscription key, a legacy licence or a product that activates or upgrades to Avast Premium Security. Before purchasing, compare Avast Internet Security key prices from verified third-party retailers and confirm the exact activation outcome, licence duration, region, device allowance and compatibility with your Avast Account.
Provides real-time protection against viruses, malware and other online threats.
Includes phishing and malicious-website protection for safer web browsing.
Includes Ransomware Shield to help protect selected personal files from unauthorised encryption.
Includes a firewall to monitor and help control incoming and outgoing network connections.
Includes Real Site protection intended to help prevent access to fake or hijacked websites.
Includes Sandbox for opening suspicious files or applications in an isolated environment.
Includes Anti-Spam tools for filtering unwanted and potentially harmful emails.
Includes Webcam Shield to help prevent unauthorised applications accessing a connected webcam.
Legacy subscribers may receive Avast Premium Security instead, which Avast states includes additional tools and features.
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