The total computer power that is directed to the Bitcoin network has reached an all-time high again. The measurement of this metric is known as the hashrate and it is a good way of measuring the security of the network. The network hit a new high of 85 exahashes (EH/s) last week and the mining difficulty about 12 trillion. Read more here:
https://www.cryptofish.com/blog/bitcoin-hash-rate-at-all-time-highs-again/Does price lead hashrate or does hashrate lead price?
In terms of security, the main thing that might seems to be a problem is the distribution of the hashrate, I think, and based from my experience reading from news about crypto here on our forum, it is much safe if the hashes are distributed across huge volume of miners. the safety of the blockchain might somehow depends on the hashrate, if an entity or group handles a huge volume of the hashes, they might somehow have a control over how the blockchain will be.