Incident Overview
On Apr 1, 2023, the team behind the ARB Token token executed a rug pull, resulting in a loss of funds worth $70k USD.
The attack on the ARB Token token involved the token contract deployer manipulating the liquidity pool by removing liquidity from the pair contract and selling a large quantity of tokens on the market. This resulted in a rapid drop in the token's price by approximately 90%. The deployer took advantage of their ability to manipulate the liquidity pool and market to execute a rug pull, effectively stealing funds from investors.
The exploit highlights the importance of careful token contract design and the need for investors to perform due diligence before investing in new projects.
Deployer:
https://bscscan.com/address/0x62dfdb6e…Ffaa05
Example TX of removing liquidity:
https://bscscan.com/tx/0x1bf6eef6…0ebcde
https://bscscan.com/tx/0x5e03305c…c0ef65
Incident Report
Protocol Information
Market Context at Time of Hack
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.
What Auditors Should Check
If you're auditing a protocol with similar architecture to Arbitrum token, these are the critical security checks that could have prevented this incident (April 2023).
- Verify all logic paths related to Rugpull are guarded by proper access controls and input validation
- 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 TrialSources & References
Learn to Prevent the Next Arbitrum token
The Arbitrum token 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.