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Monthly Security Review: October 2024

November 1, 2024

Security at a Glance πŸ‘€

Radiant: $58M

On October 16th, Radiant Capital suffered a security breach on Arbitrum and BSC, resulting in losses exceeding $50M. While the complete technical details of the exploit remain undisclosed, the protocol team confirmed the compromise of several developer wallets as the attack vector.

Read Radiant’s post-mortem report for more details

Unknown: $1.4M

On October 24th, an unknown Compound-fork protocol was exploited on Base, resulting in a loss of approximately $1.4m. While the affected contracts were unverified at the time of the incident, our analysis indicates that this attack was probably due to vulnerable price dependency on Uniswap spot price.

View the complete attack transaction list via Phalcon's Security Incidents

EGA: $554K

On October 5th, an unverified contract was exploited on BSC, causing a loss of $554k. The root cause was the lack of slippage protection in the function that buys EGA tokens from Pancake pairs, susceptible to price manipulation attacks.

Track the attack details using Phalcon Explorer

P719: $315K

On October 11th, P719 token was exploited on BSC, resulting in a loss of $315k. While the compromised contract was unverified, we suspect the root cause was a flawed token burn mechanism within the P719 trading functionality.

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BlockSec at Better Web3 Forum 2024 πŸ”₯

Watch the speech by BlockSec co-founder Yajin Zhou at the Better Web3 Forum 2024 to learn about the latest security trends, lessons from past incidents, why auditing alone is insufficient, and what project parties can do to ensure protocol security.

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The Decentralization Dilemma: Cascading Risk and Emergency Power in the KelpDAO Crisis
Security Insights

The Decentralization Dilemma: Cascading Risk and Emergency Power in the KelpDAO Crisis

This BlockSec deep-dive analyzes the KelpDAO $290M rsETH cross-chain bridge exploit (April 18, 2026), attributed to the Lazarus Group, tracing a causal chain across three layers: how a single-point DVN dependency enabled the attack, how DeFi composability cascaded the damage through Aave V3 lending markets to freeze WETH liquidity exceeding $6.7B across Ethereum, Arbitrum, Base, Mantle, and Linea, and how the crisis forced decentralized governance to exercise centralized emergency powers. The article examines three parameters that shaped the cascade's severity (LTV, pool depth, and cross-chain deployment count) and provides an exclusive technical breakdown of Arbitrum Security Council's forced state transition, an atomic contract upgrade that moved 30,766 ETH without the holder's signature.

Weekly Web3 Security Incident Roundup | Apr 13 – Apr 19, 2026
Security Insights

Weekly Web3 Security Incident Roundup | Apr 13 – Apr 19, 2026

This BlockSec weekly security report covers four attack incidents detected between April 13 and April 19, 2026, across multiple chains such as Ethereum, Unichain, Arbitrum, and NEAR, with total estimated losses of approximately $310M. The highlighted incident is the $290M KelpDAO rsETH bridge exploit, where an attacker poisoned the RPC infrastructure of the sole LayerZero DVN to fabricate a cross-chain message, triggering a cascading WETH freeze across five chains and an Arbitrum Security Council forced state transition that raises questions about the actual trust boundaries of decentralized systems. Other incidents include a $242K MMR proof forgery on Hyperbridge, a $1.5M signed integer abuse on Dango, and an $18.4M circular swap path exploit on Rhea Finance's Burrowland protocol.

Weekly Web3 Security Incident Roundup | Apr 6 – Apr 12, 2026
Security Insights

Weekly Web3 Security Incident Roundup | Apr 6 – Apr 12, 2026

This BlockSec weekly security report covers four DeFi attack incidents detected between April 6 and April 12, 2026, across Linea, BNB Chain, Arbitrum, Optimism, Avalanche, and Base, with total estimated losses of approximately $928.6K. Notable incidents include a $517K approval-related exploit where a user mistakenly approved a permissionless SquidMulticall contract enabling arbitrary external calls, a $193K business logic flaw in the HB token's reward-settlement logic that allowed direct AMM reserve manipulation, a $165.6K exploit in Denaria's perpetual DEX caused by a rounding asymmetry compounded with an unsafe cast, and a $53K access control issue in XBITVault caused by an initialization-dependent check that failed open. The report provides detailed vulnerability analysis and attack transaction breakdowns for each incident.