Bitcoin: Fee-Based Security Modeling

Over the past decade, the bitcoin network has been the most secure public blockchain.

This is because it has by far the highest market capitalization and hash rate in the asset class, along with customized hardware required to mine it, meaning that the cost for a potential attacker to try to control 51% of the hash rate for a lengthy period of time (which would allow for double-spending attacks and other security disruptions) is quite high.