Screen counterparties for risk, continuously monitor payment addresses, and get notified automatically. Build trust in every transaction.
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. ”

How BlockSec’s Payment Security Solution Helps Institutions Stay Secure in the AI Era
Discover how BlockSec helps payment institutions protect funds, secure data, and strengthen resilience through security assessments, testing, and continuous monitoring.

NEAR Intents Exploit: Refund Flaw and Security Lessons
The NEAR Intents exploit used oversized refund events to preserve internal balances after the deposited assets were returned. This analysis reconstructs the receipt flow and seven BNB Chain withdrawals totaling 3,865,021 USDT, distinguishes those outflows from the project's reported full recovery, and outlines security considerations for developing and auditing NEAR smart contracts.

~$5.57M Lost: X100 Freezer, NEM Exploits | BlockSec Weekly
This weekly report covers two security incidents on Ethereum and BNB Chain from October 19 to October 25, 2026. It examines a flash-loan-funded governance takeover of X100 Freezer and a tax-settlement flaw affecting a NEM token liquidity pool on BNB Chain. Estimated losses within the report's scope total approximately $5.57M: ~$4.75M from the representative X100 transaction and ~$820K from the NEM pool incident. The total excludes separately reported follow-on X100 extractions.
For 1000+ clients, from Web3 leaders to global regulators