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Norton Internet Security 4 for Mac is fast, comprehensive protection against online threats. It safeguards your computer, identity, and home network without slowing you down. Delivering the strongest protection available for Mac, it runs silently in the background, using minimal system resources to make online shopping, banking, and browsing safer and more convenient than ever. This update to version 4.1 offers Mac OS X 10.6 "Snow Leopard" compatibility. With a quick single installer and its simple, easy-to-use user interface, Norton Internet Security for Mac automatically detects and removes the latest malicious threats with set-and-forget convenience. Industry leading browser protection safeguards you from web-based attacks, while a customizable 2-way firewall automatically blocks threats from entering or leaving your system.