Total Defense is a consumer-focused internet security software suite offering multiple product tiers for protection against viruses, malware, spyware, and ransomware across Windows, Mac, Android, and iOS devices. Product lineup includes: - Essential Anti-Virus: Core antivirus protection for Windows and Mac covering malware, spyware, ransomware, and viruses. - Premium Internet Security: Multi-device protection (up to 5 devices) with online backup (10GB), covering Windows, Mac, and Android. - Ultimate Internet Security: All-in-one suite for up to 10 devices, designed for household-wide coverage. - Mobile Security: Protection for mobile devices. - PC Tune-Up: System optimization utility for Windows PCs. The software is designed to be lightweight and easy to use without requiring specialized technical knowledge. It includes parental controls and online backup features in higher-tier plans. A 30-day free trial is available with no credit card required. Certifications and independent test results include VB100 certification, multiple AV Comparatives Advanced Plus ratings, and OPSWAT certification. Total Defense also offers a Virus-Free Guarantee, providing free virus removal or a refund if a virus is not detected. US-based technical support is available to all customers, and purchases are backed by a 60-day money-back guarantee.