Norton Internet Security 2010 Dual Protection for Mac contains Norton Internet Security 4.1 for Mac. It provides comprehensive protection against online threats, and is compatible with Mac OS X 10.6 (Snow Leopard). 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. Also includes Norton Internet Security 2010 for Windows to protect those who use their Intel based Mac to run Mac OS X and Windows operating systems.