Over $3.1 billion in crypto has been lost in 2025, with access-control exploits being the primary cause, according to a Hacken report.
More than $3.1 billion in crypto has been lost in the first half of 2025 due to issues including smart-contract bugs, access-control vulnerabilities, rug pulls and scams, according to a report from blockchain security auditor Hacken.
This figure already exceeds the total of $2.85 billion from all of 2024. While the $1.5 billion Bybit hack in February may have been an outlier, the broader crypto sector continues to grapple with security challenges.
The distribution of loss types remains largely consistent with trends observed in 2024. Access-control exploits have been the primary driver of losses, accounting for around 59% of the total. Smart-contract vulnerabilities contributed to about 8% of the losses, with $263 million stolen.
