Incident Overview
A small Norwegian cryptocurrency exchange has refunded its users after falling victim to a SIM swap and phishing hack, reportedly losing $1m worth of digital assets.
A judge at a Sør-Rogaland District Court hearing ruled that Bitcoins Norway CEO Ole-André Torjussen distributed an appropriate refund amount.
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 Norway, these are the critical security checks that could have prevented this incident (July 2019).
- 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 TrialFunds Recovery
Recovered
$1.0M
Net Loss
0
Sources & References
Learn to Prevent the Next Bitcoin Norway
The Bitcoin Norway 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.