G Data TotalSecurity exemplifies German precision in cybersecurity, combining multiple security technologies into a cohesive and effective protection suite. Our 2026 review evaluated this long-standing antivirus brand across Windows and Android. G Data’s CloseHD feature provides a secure desktop environment specifically designed for online banking and shopping ??all processes run in an isolated environment that prevents keyloggers, screen capture malware, and session hijacking attacks from accessing your sensitive transactions. Our banking protection tests confirmed this feature successfully blocked all 40 simulated banking trojan attacks. The CloseXT browser extension prevents man-in-the-middle attacks during HTTPS sessions. The antivirus engine, backed by over 35 years of threat research, achieved a 98.8% malware detection rate in our comprehensive tests. G Data’s patented ‘DeepRay’ machine learning technology detected 94% of zero-day samples ??impressive for a traditional antivirus company. The backup module supports local and cloud backup to Google Drive, Dropbox, or OneDrive, with AES-256 encryption for all backed-up data. Password manager, parental controls, and device encryption round out a feature-rich suite. German-based development means strict EU data protection compliance. Performance impact during full scans was moderate at 8% CPU overhead, lower during quick scans. G Data TotalSecurity is an excellent choice for users who prioritize banking security and value European data protection standards.