Kaspersky Total Security 2021 21.3.10.391 For W... • Quick

The core engine (stored in %ProgramFiles(x86)%\Kaspersky Lab\Kaspersky Total Security 21.3 ) used the Kaspersky Security Network (KSN) cloud. It provided signature-less protection using behavioral detection, System Watcher, and Exploit Prevention. In 2021 tests (AV-Comparatives), this engine scored a 99.9% detection rate against zero-day malware.