What Is a “Hash Rate” and How Does It Relate to the Bitcoin Network’s Security?

Hash rate is the total combined computational power being used to mine and process transactions on a Proof-of-Work blockchain. It is measured in hashes per second (H/s).

A higher hash rate indicates more miners are competing, which increases the difficulty for any single entity to gain a majority share. Therefore, a higher hash rate directly correlates with greater network security and resilience against 51% attacks.