A class action lawsuit filed on June 28, 2023, in Colorado federal court alleges that Atomic Wallet had prior knowledge of critical security vulnerabilities in its platform well before a devastating breach earlier in the month that cost users more than $100 million in cryptocurrency. The case raises serious questions about the accountability of non-custodial wallet providers and the adequacy of current security standards in the digital asset industry.
The Exploit Mechanics
According to the complaint, Atomic Wallet — a popular non-custodial multichain wallet founded by Konstantin Gladych — suffered a major security breach in early June 2023 that resulted in the theft of approximately $35 million in digital assets from thousands of users. The De.Fi Rekt Report, published on the same day as the lawsuit filing, revealed that the Atomic Wallet exploit was the single largest hack of Q2 2023, contributing significantly to the quarter’s total losses of $204.3 million across 110 separate incidents.
The attackers reportedly gained unauthorized access to user funds through vulnerabilities in the wallet’s desktop application framework. Security researchers had previously identified issues including improper use of Electron, a framework used for building desktop applications, as well as a lack of adherence to wallet system design standards and best practices. The breach was later attributed by the FBI to North Korea-affiliated hacking groups, underscoring the sophisticated threat landscape facing crypto wallet providers.
Affected Systems
The breach affected Atomic Wallet users across multiple blockchain networks, as the wallet supports a wide range of cryptocurrencies and tokens. Plaintiffs Robert Meany and Graham Dickinson, representing a proposed nationwide and global class, claim they lost crypto assets stored in their Atomic Wallet accounts during the June breach. The lawsuit targets Atomic Wallet and its founder and CEO, Konstantin Gladych, alleging negligence and failure to protect user funds.
Beyond Atomic Wallet, the Q2 2023 security landscape was equally troubling for the broader DeFi ecosystem. Ethereum-based platforms accounted for $82.5 million in losses, followed by BNB Smart Chain with $57.8 million. Access control vulnerabilities alone accounted for more than a quarter of all losses at $75.8 million, while rug pulls and smart contract exploits cost users $47.3 million and $55.3 million respectively. The scale of these incidents underscores how systemic security weaknesses remain across the cryptocurrency sector.
The Mitigation Strategy
The plaintiffs argue that Atomic Wallet had been advised by a crypto research and security group in early 2022 about existing vulnerabilities that could be placing user funds at risk. Rather than addressing these issues proactively, the company allegedly failed to implement reasonable safeguards or inform users of the risks. This failure, the lawsuit contends, constitutes negligence that directly led to the losses suffered by users.
The Consumer Financial Protection Bureau had already flagged an increase in crypto-related complaints in a November 2022 bulletin, yet the industry’s response has been uneven at best. Of the $204.3 million lost in Q2 2023, only $4.9 million was recovered — a fraction even smaller than the $6.9 million recovered in Q2 2022, indicating that fund recovery mechanisms are not improving despite growing awareness of the problem.
Lessons Learned
The Atomic Wallet case highlights several critical lessons for the crypto community. First, non-custodial does not mean risk-free. While users control their private keys, the software they use to manage those keys can still introduce vulnerabilities. Second, security audits and timely responses to identified flaws are not optional — they are essential. The gap between when Atomic Wallet was warned about vulnerabilities in 2022 and the actual breach in June 2023 represents a failure that cost users dearly.
Third, the legal framework around wallet provider accountability is still evolving. This class action, filed in Colorado federal court (Case No. 1:23-cv-01582), could set important precedents for how courts view the responsibilities of wallet providers toward their users.
User Action Required
If you used Atomic Wallet and lost funds in the June 2023 breach, you may be eligible to join the class action. The case is being handled by Aylstock, Witkin, Kreis and Overholtz. More broadly, users should regularly update their wallet software, enable all available security features, consider hardware wallets for large holdings, and diversify across multiple storage solutions to limit exposure to any single point of failure. In a market where Bitcoin trades at approximately $30,086 and Ethereum at $1,828, the stakes are simply too high to ignore security best practices.
Disclaimer: This article is for informational purposes only and does not constitute legal or financial advice. Readers affected by the Atomic Wallet breach should consult qualified legal counsel.
knew about the flaws and did nothing. every non-custodial wallet maker should be forced to publish their audit reports publicly
The De.Fi report said this was the single largest hack of Q2 2023. $35 million gone from a wallet people trusted to be non-custodial. Unreal.
if you had funds stolen from atomic wallet during this, the colorado filing is still worth following. class actions move slow but this one has legs
Yuki S the worst part is that non-custodial just means they dont hold your keys. doesnt mean their software is safe. big difference most people miss
konstantin gladych founded this thing and somehow security researchers flagged issues before the breach? they straight up ignored it
gladych also co-founded changelly before atomic. dude has a track record of launching products and moving on. colorado case could expose a lot
wallet_skeptic_ the changelly connection is the part nobody talks about. serial founders in crypto just hop from one project to the next and the last one holds all the risk
security researchers flagged the issues and gladychs team just sat on it. thats not a bug, thats a decision. the colorado filing should be required reading for anyone building wallet software
the non-custodial marketing was the real issue with atomic wallet. people assumed it meant safe. it just means they cant help you when their code gets exploited
Q2 2023 had 204M in losses across 110 incidents. Atomic was the biggest single one. and yet wallet downloads kept growing. people dont learn
110 incidents in one quarter and people still keep funds on random wallets. the atomic breach was entirely preventable
110 incidents in Q2 alone and people still download random wallets without checking audit history. the atomic breach was preventable and the class action is entirely justified
non-custodial just means they dont hold your keys. it says nothing about whether their code is safe. the branding tricks people into thinking its more secure than it actually is