Protect your exchange at every level: Vet new listings, monitor core assets, and ensure global compliance.
Screen all incoming and outgoing transactions against high-risk categories, including: terrorism financing, human trafficking, pig butchering, child abuse, and known hacker addresses.
Ensure compliance with FATF standards across the U.S., Europe, Hong Kong SAR, and 27+ global jurisdictions.
Vet projects for listing and investment by conducting rigorous code audits.
Protect your users and reputation by identifying vulnerabilities in advance.
Get real-time monitoring for all your Safe{wallet} multi-sig treasuries.
Detect suspicious transactions and get alerted before they are signed and executed.
Understand the methods behind any exploit that affect your listed assets without delay.
Gain actionable intelligence to strengthen security and inform your community.
Secure Exchange Operations and User Assets
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Weekly Web3 Security Incident Roundup | Mar 30 – Apr 5, 2026
This BlockSec weekly security report covers nine DeFi attack incidents detected between March 30 and April 5, 2026, across Solana, BNB Chain, Arbitrum, and Polygon, with total estimated losses of approximately $287M. The week was dominated by the $285.3M Drift Protocol exploit on Solana, where attackers combined multisig signer social engineering with Solana's durable nonce mechanism to bypass a zero-timelock 2-of-5 Security Council, alongside notable incidents including a $950K flash loan TWAP manipulation against the LML staking protocol, a $359K Silo Finance vault inflation via an external `wstUSR` market donation exploiting a depegged-asset oracle and `totalAssets()` accounting flaw, and an EIP-7702 delegated-code access control failure. The report provides detailed vulnerability analysis and attack transaction breakdowns for each incident, covering flawed business logic, access control, price manipulation, phishing, and misconfiguration attack types.

Tracing $1.6B in TRON USDT: Inside the VerilyHK Ponzi Infrastructure
An on-chain investigation into VerilyHK, a fraudulent platform that moved $1.6B in TRON USDT through a multi-layered fund-routing infrastructure of rotating wallets, paired payout channels, and exchange exit funnels, with traced connections to the FinCEN-sanctioned Huione Group.

Drift Protocol Incident: Multisig Governance Compromise via Durable Nonce Exploitation
On April 1, 2026 (UTC), Drift Protocol on Solana suffered a $285.3M loss after an attacker exploited Solana's durable nonce mechanism to delay the execution of phished multisig approvals, ultimately transferring administrative control of the protocol's 2-of-5 Squads governance with zero timelock. With full admin privileges, the attacker created a malicious collateral market (CVT), inflated its oracle price, relaxed withdrawal protections, and drained USDC, JLP, SOL, cbBTC, and other assets through 31 rapid withdrawals in approximately 12 minutes. This incident highlights how durable nonce-based delayed execution can decouple signer intent from on-chain execution, bypassing the temporal assumptions that multisig security implicitly relies on.
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