Blockchain Security Cersik said losses from cryptocurrency hacking, vulnerabilities and scams soared to $2.47 billion in the first half of 2025, but the total number of hackers fell in the second quarter.
Losses over $800 million in 144 incidents in the second quarter, with loss value down 52% Comparative By the previous quarter, hacking incidents had dropped by 59 times, Certik explain In Tuesday’s report.
In total, there were more than US$2.47 billion in the first half of 2025 Due to hackers, scams and vulnerabilitiesup nearly 3% from the $2.4 billion stolen in 2024.
However, considering more than $187 million returned in the first half of the year, Certik said the adjusted total was close to $2.2 billion.
Most of the losses from both events
Despite the surge in losses, Certik said it does not necessarily “hint on a deteriorating security landscape” as lions’ share of losses comes from only two incidents targeting Crypto Exchange Bybit and Cetus Protocol, worth $1.78 billion.
Attackers exploit vulnerabilities Bybit’s Cold Wallet Infrastructurededuct $1.5 billion from Ether (eth) On February 21, during the CETUS solution, the main decentralized exchange on the SUI blockchain, Hacked $225 million May 22.
“Without these events, the total losses in 2025 will reach $690 million, suggesting that the broader trend may not be as severe as the original figures suggest,” Certik said.
Phishing attacks surge, Ethereum targets
Phishing Current Account For the highest security incidents so far this year, there were 132 security incidents and $410 million stolen.
Overall, the wallet compromise was the most expensive attack vector in the first half of 2025, with $1.7 billion stolen in 34 incidents.
“As the phishing activity becomes increasingly deceptive, it is crucial to adopt strong security habits for users: avoid clicking unknown links, double checking the authenticity of the domain, enabling multi-factor authentication, and considering using a hardware wallet for key storage,” Certik said.
The Ethereum blockchain is one of the most popular targets, accounting for 70 targets for hackers, scams and vulnerabilities, compared to 98 in the first quarter.
“Ethereum’s dominance in decentralized financial and smart contract activity makes it an attractive target, with billions of dollars locking in the deal,” Certik said in its quarterly security report.
Strict safety standards are needed in the future
Certik said that in addition to security incidents, global regulatory and market development signs in the first half of 2025 are likely to “shape the future of the industry.”
In the United States, President Donald Trump has made reforms at the U.S. Securities and Exchange Commission, which have seen the institution Give up many law enforcement actions Oppose crypto companies and enforce other legislation related to Creputo.
Related: Encrypted seed phrase, front-end hacks drive record loss in 2025: TRM Labs
at the same time, The Hong Kong Legislative Council has passed A stability bill paves the way for regulated frameworks and unions to regulate Encrypted framework, Micaeffective on December 30.
“These developments show both an increasing institutional interest and a mature regulatory environment,” Certik said.
“It will be more important than ever to maintain strict safety standards as new capital and participants flow into the space,” the company added.
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