A 51% attack lets malicious actors reverse transactions by controlling more than half of a blockchain's mining power. While Bitcoin is safe, smaller cryptocurrencies like Ethereum Classic have been hit. Learn how it works, why it matters, and how to stay protected.
Archive: 2026/02
Australia requires all crypto exchanges trading fiat for digital currency to register with AUSTRAC. As of March 2026, the rules expand to cover crypto-to-crypto trading and custody services. Know the requirements, avoid penalties, and stay compliant.