Credit: GoogleGoogle has made a major change to how it releases the monthly Android Security Bulletin (ASB). In July, the bulletin for Pixel phones listed no security vulnerabilities. This striking difference was not accidental but tied to a new strategy Google is calling the Risk-Based Update System (RBUS). Typically, Google issues a public ASB on the first Monday of every month. Instead of listing all detected vulnerabilities, Google now limits the monthly ASBs to high-risk flaws, which include issues already being exploited or exploit chains linking multiple vulnerabilities together.