Chrome's Safe Browsing feature actively scans web pages, downloads, and extensions for known malware.
When malware is detected, it is reported as a security event. While unauthorized file downloads could be a consequence of a security issue, Chrome's direct detection focuses on the malware itself. Password complexity is a setting for password management, and user inactivity is a system or application-level event, not a direct security event captured by Chrome in the same way as malware detection.