In 2022, there was a spike in hacking activities in the decentralized finance (DeFi) sector.
2022 DeFi hacks reach $6b
Hackers stole over $6b, as crypto analyst Kofi, using DefiLlama data, reported on Feb. 4, 2023.
The most devastating DeFi hack in 2022 was the Ронин хакер, among many other high-profile security breaches.
Source: https://crypto.news/hackers-stole-over-6b-from-defi-protocols-in-2022/