A quantum attack refers to the potential threat posed by quantum computers to the security of blockchain networks and cryptocurrencies. These advanced computers can perform complex calculations at speeds far beyond today’s classical computers.One major concern is the ability of quantum computers to break cryptographic algorithms widely used in securing transactions and wallets. For instance, public-key cryptography, essential for creating secure digital signatures, can be compromised by quantum algorithms like Shor’s algorithm. This would allow a quantum computer to derive private keys from public keys, enabling unauthorized access to digital assets.While practical quantum computers capable of executing such attacks are still in development, researchers emphasize the need for proactive measures. This includes exploring new cryptographic methods that can withstand quantum threats, often referred to as post-quantum cryptography. Ongoing discussions in the field aim to ensure that blockchain technology remains secure as quantum computing advances. As this technology evolves, understanding its implications on existing systems becomes crucial for the continued safety of digital assets.