2025 was a bruising year for cybersecurity in digital assets, ending with over $3.4 billion in crypto stolen across hundreds of incidents. Independent tallies show over 300 major security incidents for the year. At least $2 million of those thefts was attributed to North Korean hackers, mainly in the Bybit hack case.
The 2025 Skynet Hack3d Report is here.
$3.35B lost. 700+ incidents. New attack vectors. Key trends.
Get the most detailed breakdown of Web3 security in 2025, from exploits to insights.
Read the full report👇https://t.co/EfWupS604N
— CertiK (@CertiK) December 23, 2025
Below are the five biggest heists of 2025, including one driven primarily by social engineering.
Bybit: $1.5b (February 2025)
U.S. authorities attributed the largest crypto theft in history to North Korea’s Lazarus Group. Investigators said attackers took control of a cold ETH wallet, then rapidly laundered funds across chains via
BTC
$88 221
We współpracy z: https://www.coinspeaker.com/biggest-crypto-hacks-of-2025/
