Incident Overview
The Bitcoin Sheikh was arrested for running a Ponzi scheme. 766,000,000 $USD worth of assets were seized by the authorities.
Brazil's Federal Police reported revealing another Ponzi scheme run by Francisco Valdevino da Silva also known as "Bitcoin Sheikh". The authorities claimed that the team De Silva frauded thousands of people in the last few years for the total amount of 766,000,000 $USD, by offering 20% returns. Da Silva and his criminal gang also created their own token, which according to the authorities, lacked liquidity or backing.
Interestingly, some celebrities as the model Sasha Meneghel who lost 230,000 $USD and Brazil Soccer players were on the list of investors.
Incident Report
Protocol Information
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 Bitcoin Sheikh, these are the critical security checks that could have prevented this incident (October 2022).
- Verify all logic paths related to Other 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 Bitcoin Sheikh
The Bitcoin Sheikh 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.