Mandiant released a report analyzing zero-day exploitation trends in 2022 and their relation to nation state cyber activity. Overall, the company tracked 55 zero-day vulnerabilities (measured as a vulnerability exploited in the wild before a patch was released) over the course of the year, a significant increase in comparison to prior years, though not comparable to the record breaking 81 exploits tracked in 2021. Mandiant is confident that 13 of those zero-days were exploited by state actors, with China as the most enthusiastic participant, utilizing seven zero-days.