Atomic Wallet Hack

TOTAL LOST $115M
Critical #74 All-Time Private Key Compromised (Unknown Method) / Access Control avalanche bitcoin bsc ethereum polkadot tron

Summarize with AI

ChatGPT Perplexity Claude Grok
Affected Chain avalanche 6 chains affected
Recovered $1.2M 1.0% returned
All-Time Rank #74 By amount stolen
Protocol Type Wallets Target category

Incident Overview

Quick Summary

Atomic Wallet suffered an exploit resulting in the loss of $115,000,000 USD worth of various tokens.

Details of the Exploit

Atomic Wallet is a multichain DeFi wallet. The wallet was breached and approximately $115 million worth of various tokens were stolen from their users via access control. The stolen tokens included Bitcoin (BTC), Ether (ETH), Tether (USDT), Dogecoin (DOGE), Litecoin (LTC), Binance Coin(BNB), and Polygon(MATIC). Tron-based USDT seemed to be the largest stolen stash according to on-chain analytics with the stolen amount of 7,950,000 $USDT. The stolen funds mostly were swapped for native coins as $ETH and held in multiple EOA addresses.

The impacted users represented less than 1% of their monthly active users, according to AtomicWallet's official tweet, but worth mentioning that only the top five users were lost roughly 17,000,000 $USD in total. Several users reported that their crypto was stolen after a recent software update while others said they were impacted despite not updating to the latest version as per messages from Atomic Wallet’s official Telegram channel. Victims have been asked to submit information through a Google Docs form that Atomic Wallet is using for its investigations.

With the help of on-chain experts, 1,200,000 $USD worth of funds were rescued from the hackers.

Block Data Reference

Attacker Address Example:

https://etherscan.io/address/0x26208699…421b21

https://tronscan.org/#/address/TV92VkrHpim1MN58GNC5RfUWVUmNTPRwGA

Affected Address Example:

https://etherscan.io/address/0x8568ab3A…AcB3dd

Involved Addresses list:

https://www.chainabuse.com/report/b181be45-51a7-446b-83ae-8408c9103bb5

This is classified as a Access Control Attacks . Compare similar hacks →

Incident Report

Protocol / Project Atomic Wallet
Date of Incident
Affected Chain(s) avalanche bitcoin bsc ethereum polkadot tron
Attack Technique Private Key Compromised (Unknown Method) / Access Control
Classification Infrastructure / Other
Primary Source View Post-Mortem

Protocol Information

Protocol Type Wallets
Official Website atomicwallet.io/
Protocol Twitter/X @AtomicWallet
Team Public / Doxxed
Source Code Unverified

Market Context at Time of Hack

Token Categories
Cosmos Ecosystem Wallet Ethereum Ecosystem Injective Ecosystem BNB Chain Ecosystem
Protocol Links
GitHub Reddit

What the Attacker Needed to Succeed

Understanding the prerequisites for this type of attack helps auditors identify protocols that are most at risk and helps developers build better defenses.

Technical Knowledge Operational-security tradecraft (phishing, malware, leaked seed phrases, or insider access) to obtain treasury signing authority
Capital Required Minimal capital - only enough to cover gas while draining the compromised accounts
On-Chain Access Valid signing authority over the compromised wallets / multisig signers, allowing direct transfer of funds or stake authorization
Target Reconnaissance Identification of Atomic Wallet's high-value treasury accounts and the authority / multisig structure controlling them
Execution Speed Speed to drain the compromised accounts before the team detects the breach and revokes signing authority or freezes the assets
Obfuscation Plan A strategy to launder and move stolen funds - typically through mixers, cross-chain bridges, or decentralized DEX swaps to resist tracing

What Auditors Should Check

Could this have been caught in audit? Hard to catch — private key / OpSec failures are outside smart contract audit scope

If you're auditing a protocol with similar architecture to Atomic Wallet, these are the critical security checks that could have prevented this incident (June 2023).

  • Verify all logic paths related to Private Key Compromised (Unknown Method) / Access Control are guarded by proper access controls and input validation - see the Access Control Attacks attack class for patterns
  • Review privileged functions (owner, admin, governance) for potential abuse vectors - centralization risks should be documented and bounded with timelocks or multi-sigs

Master these auditing techniques with hands-on labs and real exploit scenarios in the Smart Contract Hacking course.

Free Trial

Funds Recovery

1.0%

Recovered

$1.2M

Net Loss

113850000

Related Attack Classes

The technique used in this hack maps to these vulnerability classes in our security curriculum:

See all Access Control Attacks examples →

Access Control Attacks

Sources & References

Browse all hacks

These hacks used the same attack technique. Understanding the pattern helps prevent future exploits.

ZKsync $5.0M
Private Key Compromised (Unknown Method) / Access Control
Berally $90K
Private Key Compromised (Unknown Method) / Access Control
Orange Finance $840K
Private Key Compromised (Unknown Method) / Access Control
DeltaPrime $6.0M
Private Key Compromised (Unknown Method) / Access Control
BtcTurk $54.0M
Private Key Compromised (Unknown Method) / Access Control
DMM Bitcoin $305M
Private Key Compromised (Unknown Method) / Access Control

Learn to Prevent the Next Atomic Wallet

The Atomic Wallet hack is one of many attacks that skilled auditors are trained to detect before deployment. Master real exploit patterns and defense techniques with hands-on Web3 security training.

Start Free Trial Browse Attack Library
Recreate exploit patterns safely Free Trial