AML/CFT Compliance for Crypto Payment
Block illicit funds in real-time and meet global compliance standards. Build trust in every transaction.
Screen all incoming and outgoing funds with real-time KYT/KYA.
Instantly identify high-risk counterparties and sanctioned addresses.
Ensure global compliance and prevent illicit fund flows automatically.
Intercept and flag suspicious transactions before you process them.
Apply smart, tiered controls instead of disruptive, one-size-fits-all rules.
Keep the users’ experience seamless for legitimate transactions.
Block withdrawals to sanctioned or known high-risk addresses without manual intervention.
Regularly re-screen counterparties to adapt to emerging threats.
Prevent users from using your platform as an exit point for illicit funds.
Show regulators clear visual proof of illegal fund movements. This evidence helps meet compliance requirements.
Streamline STR reporting. Speed up complex on-chain investigations for global compliance.
Enable Secure and Compliant Crypto Payments
“Partnering with BlockSec has significantly strengthened the security of our platform. Real-time deposit and withdrawal risk management has prevented numerous high-risk transactions. BlockSec’s solution not only improved our compliance capabilities but also preserved user experience—critical for our long-term growth. ”
#2 Bybit Incident: A Web2 Breach Enables the Largest Crypto Hack in History
The largest crypto hack ever, the February 21, 2025 Bybit breach stole about $1.5B after attackers used social engineering to compromise a Safe{Wallet} workflow, injected malicious JavaScript into an AWS S3 bucket, tampered with the transaction signing process, and upgraded Bybit’s Safe{Wallet} contract to a malicious implementation that drained funds across multiple chains.
#1 Cetus Incident: One Unchecked Shift Drains $223M in the Largest DeFi Hack of 2025
Cetus Protocol, the largest concentrated-liquidity DEX on Sui, was exploited on May 22, 2025, resulting in an estimated ~$223M loss across multiple liquidity pools. The attacker leveraged a flaw in checked_shlw(), a custom overflow-prevention helper used in fixed-point u256 math, where an incorrect constant and comparison failed to block unsafe left shifts and caused silent truncation of high bits during liquidity delta calculations. By crafting specific liquidity and tick/price-range parameters, the exploit made required deposits appear near-zero while minting an oversized liquidity position, which was later withdrawn to drain real pool reserves.
Weekly Web3 Security Incident Roundup | Jan 25 – Feb 1, 2026
During the week of January 25 to February 1, 2026, six blockchain security incidents were reported with total losses of ~$18.05M. These involved improper input validation, token design flaws, key compromises, and business logic errors across DeFi protocols on multiple chains. The primary causes included unchecked user inputs enabling arbitrary calls, flawed burn mechanisms allowing price manipulation, compromised developer tools, and missing solvency checks in lending functions.
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