Arbitrum is a blockchain technology company behind the Arbitrum layer-2 rollup for Ethereum, designed to deliver faster, cheaper transactions for DeFi and smart-contract applications.
Overview
Arbitrum is a blockchain technology company behind the Arbitrum layer-2 rollup for Ethereum, designed to deliver faster, cheaper transactions for DeFi and smart-contract applications. As a Layer-2 solution with cross-chain bridges, its security posture matters in cybersecurity due to potential attack vectors on rollups and bridges, making robust auditing and monitoring essential; recent DeFi exploits underscore the ongoing risk landscape affecting Layer-2 ecosystems.
Related Threat Clusters
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Ripple Shares North Korean Threat Intelligence to Combat Evolving Cyber Attacks
On May 5, 2026, Ripple announced it will share internal threat intelligence regarding North Korean hackers with Crypto ISAC, aimed at enhancing security across the cryptocurrency industry. This initiative follows a…
19 articles · Updated May 5, 2026 -
Kelp DAO and Aave Resume Operations After $292 Million Exploit
On April 18, 2026, Kelp DAO suffered a significant cyberattack attributed to North Korea's Lazarus Group, resulting in the theft of approximately 116,500 rsETH tokens worth $292 million. The attackers exploited a…
9 articles · Updated May 14, 2026 -
Bybit Sues North Korea Over $1.5 Billion Crypto Theft
Bybit has filed a civil lawsuit against North Korea, its Reconnaissance General Bureau, and the Lazarus Group, accusing them of orchestrating a $1.5 billion hack in February 2025. The lawsuit, filed in the U.S. District…
23 articles · Updated August 8, 2026 -
Radiant Capital Winding Down After $50M Hack Linked to North Korean Group
Radiant Capital, a decentralized lending protocol, is winding down operations after failing to recover from a $50 million hack attributed to a North Korean state-sponsored group, the Lazarus Group. The exploit occurred…
5 articles · Updated June 1, 2026 -
Court Freezes $71 Million in Ethereum Linked to North Korea's Lazarus Group
A U.S. federal court has issued a restraining notice preventing Arbitrum DAO from transferring 30,766 ETH (approximately $71.1 million) that was frozen following the Kelp DAO exploit, which resulted in a loss of $292…
63 articles · Updated May 3, 2026 -
Gerstein Harrow LLP's Controversial Claim on $71M Stolen Lazarus Funds
On May 3, 2026, onchain investigator ZachXBT accused U.S. law firm Gerstein Harrow LLP of attempting to claim $71 million in frozen ether linked to the Lazarus Group's KelpDAO exploit. The firm is leveraging a 2015…
2 articles · Updated May 3, 2026 -
StakeDAO Exploit: 5.4 Trillion vsdCRV Minted via Compromised Private Key
On May 27, 2026, a hacker exploited StakeDAO by compromising its deployer private key, minting over 5.4 trillion vsdCRV tokens on Arbitrum. The attacker swapped a portion of these tokens for approximately $91,000 worth…
7 articles · Updated May 27, 2026 -
Attackers Target Unverified Smart Contracts, Stealing $36.7 Million
In the past six months, attackers have exploited unverified smart contracts, stealing at least $36.7 million from various protocols, including Truebit and Trusted Volumes. The attacks involved decompiling the raw…
7 articles · Updated June 10, 2026 -
Triple-A Hot Wallets Exploit Leads to $12M Loss Across Six Blockchains
Triple-A, a Singapore-based crypto payments gateway, experienced a security breach that drained approximately $12 million from its hot wallets across six blockchains, including Ethereum, TRON, and Polygon. The incident…
2 articles · Updated July 26, 2026 -
Humanity Protocol Loses $32M in Major Security Breach; Token Value Plummets
On June 9, 2026, Humanity Protocol suffered a significant security breach, losing over $32 million due to compromised private keys linked to an employee's device. The attacker drained funds from at least 17 wallets,…
33 articles · Updated June 9, 2026
Recent Intelligence Reports
- This $1.5 billion hack is exposing just how 'irreversible' stolen crypto really is — Cryptorank · August 9, 2026
- This $1.5 billion hack is exposing just how 'irreversible' stolen crypto really is — Cryptoslate · August 8, 2026
- Garden Finance shuts down after a $450000 exploit hits its solver layer, not its protocol — Startupfortune · July 27, 2026
- Transaction records reviewed by The Defiant — thedefiant.io · July 27, 2026
- Garden Finance disables app as Blockaid reports $450000 exploit — Lcx · July 27, 2026
- Ongoing Security Exploit Looms Over Garden Finance — Valuethemarkets · July 26, 2026
- Triple-A hot wallet losses reach $12M amid security incident — Cryptobriefing · July 26, 2026
- Robinhood CEO Hack Reveals VLAD Creator Fee Model in 2026 — Memeburn · July 26, 2026