Ciphertrace, a leading blockchain analytics company, has published its latest “Cryptocurrency Crime and Anti-Money Laundering Report,” revealing a significant pivot of crypto-related crime toward decentralized finance (DeFi) protocols. The report, which covers data from the first four months of 2021, provides a detailed picture of how the landscape of crypto crime has evolved compared to the previous year.
DeFi Takes Center Stage in Crypto Crime
Overall, the cryptocurrency sector has become more secure, with only $432 million stolen through illegal activities during the period. This projection is far lower than the $1.9 billion that Ciphertrace recorded for the entirety of 2020. However, the decrease in total losses masks a troubling trend: attacks are increasingly targeting the DeFi ecosystem, which is more vulnerable to exploits.
DeFi-related scams and exploits accounted for $156 million in losses during the study period, already surpassing the total for all of 2020. This surge is closely tied to the rapid growth of DeFi, which now consumes more than a third of all Ethereum activity. Scammers find end-users more susceptible due to the exploitability of smart contracts and the prevalence of “rug pulls,” where developers maliciously alter protocol logic to steal user funds.
High-Profile DeFi Attacks: PAID, EasyFi, and Meerkat
The Ciphertrace report lists several major DeFi security incidents. The largest was the PAID Network exploit, which allowed hackers to mint $150 million worth of tokens. The project acknowledged the breach, pulled liquidity, and minted a new token, but PAID lost more than 85% of its value, devastating all holders.
Another significant incident involved EasyFi, a Polygon-based DeFi protocol that lost $80 million due to a security vulnerability. Hackers stole private keys from the computer of a team member. Additionally, the Meerkat Finance case, suspected to be a coordinated rug pull, resulted in the theft of $31 million worth of BNB after the team modified the logic of its smart contract.
Outlook: Growing Risks in a Booming Sector
As the DeFi sector continues to acquire more relevance in the crypto industry, these hacks and exploits are likely to persist and potentially escalate in scale and sophistication. Ciphertrace emphasizes the need for enhanced smart contract auditing, improved user education, and clearer regulatory guidelines to mitigate risks. While overall crypto crime dropped in 2021, the shift toward DeFi represents a new and dangerous frontier that demands urgent attention from developers, investors, and regulators alike.

