# Vulnerability Related Articles

HTX News Center provides the latest articles and in-depth analysis on "Vulnerability", covering market trends, project updates, tech developments, and regulatory policies in the crypto industry.

North Korean Hackers Loot $500 Million in a Single Month, Becoming the Top Threat to Crypto Security

North Korean hackers, particularly the notorious Lazarus Group and its subgroup TraderTraitor, have stolen over $500 million from cryptocurrency DeFi platforms in less than three weeks, bringing their total theft for the year to over $700 million. Recent major attacks on Drift Protocol and KelpDAO, resulting in losses of approximately $286 million and $290 million respectively, highlight a strategic shift: instead of targeting core smart contracts, attackers are now exploiting vulnerabilities in peripheral infrastructure. For instance, the KelpDAO attack involved compromising downstream RPC infrastructure used by LayerZero's decentralized validation network (DVN), allowing manipulation without breaching core cryptography. This sophisticated approach mirrors advanced corporate cyber-espionage. Additionally, North Korea has systematically infiltrated the global crypto workforce, with an estimated 100 operatives using fake identities to gain employment at blockchain companies, enabling long-term access to sensitive systems and facilitating large-scale thefts. According to Chainalysis, North Korean-linked hackers stole a record $2 billion in 2025, accounting for 60% of all global crypto theft that year. Their total historical crypto theft has reached $6.75 billion. Post-theft, they employ specialized money laundering methods, heavily relying on Chinese OTC brokers and cross-chain mixing services rather than standard decentralized exchanges. Security experts, while acknowledging the increased sophistication, emphasize that many attacks still exploit fundamental weaknesses like poor access controls and centralized operational risks. Strengthening private key management, limiting privileged access, and enhancing coordination among exchanges, analysts, and law enforcement immediately after an attack are critical to improving defense and fund recovery chances. The industry's challenge now extends beyond secure smart contracts to safeguarding operational security at the infrastructure level.

marsbit04/23 01:49

North Korean Hackers Loot $500 Million in a Single Month, Becoming the Top Threat to Crypto Security

marsbit04/23 01:49

An Open-Source AI Tool That No One Saw Predicted Kelp DAO's $292 Million Vulnerability 12 Days Ago

An open-source AI security tool flagged critical risks in Kelp DAO’s cross-chain architecture 12 days before a $292 million exploit on April 18, 2026—the largest DeFi incident of the year. The vulnerability was not in the smart contracts but in the configuration of LayerZero’s cross-chain bridge: a 1-of-1 Decentralized Verifier Network (DVN) setup allowed an attacker to forge cross-chain messages with a single compromised node. The tool, which performs AI-assisted architectural risk assessments using public data, identified several unremediated risks, including opaque DVN configuration, single-point-of-failure across 16 chains, unverified cross-chain governance controls, and similarities to historical bridge attacks like Ronin and Harmony. It also noted the absence of an insurance pool, which amplified losses as Aave and other protocols absorbed nearly $300M in bad debt. The attack unfolded over 46 minutes: the attacker minted 116,500 rsETH on Ethereum via a fraudulent message, used it as collateral to borrow WETH on lending platforms, and laundered funds through Tornado Cash. While an emergency pause prevented two subsequent attacks worth ~$200M, the damage was severe. The tool’s report, committed to GitHub on April 6, scored Kelp DAO a medium-risk 72/100—later acknowledged as too lenient. It failed to query on-chain DVN configurations or initiate private disclosure, highlighting gaps in current DeFi security approaches that focus on code audits but miss config-level and governance risks. The incident underscores the need for independent, AI-powered risk assessment tools that evaluate protocol architecture, not just code.

marsbit04/20 03:23

An Open-Source AI Tool That No One Saw Predicted Kelp DAO's $292 Million Vulnerability 12 Days Ago

marsbit04/20 03:23

The Code Was Fine, But It Was Still Hacked: What Is the 'DVN Configuration Vulnerability' Behind the Biggest Hack of 2026?

Title: Code Was Secure, Yet $293M Stolen: The 2026 DVN Configuration Breach Explained On April 18, 2026, Kelp DAO’s restaking protocol was exploited, losing 116,500 rsETH (worth $293M at the time) due to a configuration flaw—not a smart contract vulnerability. The attacker used a forged cross-chain message to drain funds via LayerZero’s bridge, then dispersed the stolen rsETH across Aave V3, Compound V3, and Euler to borrow real assets, ultimately escaping with $236M in WETH. The root cause was a critical misconfiguration in Kelp’s LayerZero V2 setup: the protocol used a 1-of-1 Decentralized Verifier Network (DVN) threshold, meaning only one node approval was needed to validate cross-chain messages. The attacker compromised that single node, allowing unauthorized minting of rsETH on Ethereum. This configuration choice—permitted by LayerZero but highly risky—left zero fault tolerance. In contrast, protocols like ApeChain using multi-node validation (e.g., 2-of-3 or 5-of-9) remained secure. This incident highlights a blind spot in DeFi security audits: tools like Slither and Mythril scan code for logic flaws but ignore configuration parameters. The 2022 Nomad hack ($190M loss) also stemmed from a config error, bringing total losses from such issues to ~$482M—rivaling private key breaches. The Kelp exploit underscores the need for standardized config audits and higher baseline security in cross-chain designs.

marsbit04/19 23:56

The Code Was Fine, But It Was Still Hacked: What Is the 'DVN Configuration Vulnerability' Behind the Biggest Hack of 2026?

marsbit04/19 23:56

1 Billion DOT Minted Out of Thin Air, Yet Hacker Only Made $230,000

On April 13, a security breach occurred involving the Polkadot bridge on the Ethereum network, where an attacker exploited a replay vulnerability in the MMR proof mechanism of Hyperbridge’s ISMP protocol. By reusing a historically valid proof and pairing it with a malicious request, the attacker bypassed verification and gained admin and minting rights over the wrapped DOT contract on Ethereum. They then minted 1 billion wrapped DOT tokens—2,805 times the existing supply—and attempted to liquidate them. However, due to extremely low liquidity in the wrapped DOT market, the massive sell-off crashed the token’s price by 99.98%, from $1.22 to approximately $0.000128. The attacker ultimately exchanged the tokens for only about 108.2 ETH (worth roughly $237,000), with gas costs as low as $0.74. The same exploit had been used previously in attacks on MANTA and CERE tokens, resulting in a total loss of around $242,000. Polkadot confirmed that the incident only affected DOT bridged via Hyperbridge to Ethereum and did not impact the native Polkadot network or DOT on other bridges. Exchanges including Upbit and Bithumb temporarily suspended DOT deposits and withdrawals as a precaution. The event highlights ongoing vulnerabilities in cross-chain infrastructure and the critical role of liquidity in limiting actual damages during large-scale exploits. It also reflects a broader trend of increasing DeFi security incidents in early 2026.

marsbit04/13 10:10

1 Billion DOT Minted Out of Thin Air, Yet Hacker Only Made $230,000

marsbit04/13 10:10

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