Can Quantum Computers Hack Blockchain

https://youtu.be/JK30i1W0y04

Quantum leap: why the next wave of computers will change the world To break a widely used RSA 2048-bit encryption, a classical computer with one trillion operations per second would need around 300 trillion years. A quantum computer using Shor’s algorithm could achieve the same feat in just 10 seconds, with 1 million operations per second. 300 trillion years versus 10 seconds.