Next-Generation Security for L1 & L2 Chains
Protect your infrastructure before launch. Block attacks at the source to shield your ecosystem and reputation.
Audit core infrastructure, including the VM, bridges, and consensus.
Monitor all on-chain and mempool activities for threats.
Get instant alerts on attacks targeted dApps in your ecosystem.
Track illicit funds to maintain your chain's compliance posture.
Block large-scale hacks before attackers execute them on-chain.
Protect all ecosystem protocols and users with native, real-time defense.
Receive detailed post-mortem reports that deconstruct the full attack vector.
Implement actionable insights to harden your chain against future incidents.
Protect Your Chain Infrastructure at the Core
“Phalcon is an effective tool that helps project teams complete core monitoring in a very short period. Additionally, Phalcon is backed by a highly professional technical team that can provide timely support, solution discussions, development, and testing.”
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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