Google: 2021 was a Banner Year for Exploited 0-Day Bugs

Ransomware and other financially motivated threat actors joined nation-state-backed groups in leveraging unpatched flaws in attack campaigns, new data shows.

Google Project Zero called 2021 a "record year for in-the-wild 0-days," as 58 security vulnerabilities were detected and disclosed during the course of the year. The development marks more than a two-fold jump from the previous maximum when 28 0-day exploits were tracked in 2015. In contrast, only 25 0-day exploits were detected in 2020. "The large uptick in in-the-wild 0-days in 2021 is due to