Ok, so I will answer my self. I found this link with the estimated costs for several cryptocurrencies: https://braiins.com/blog/how-much-would-it-cost-to-51-at

Ok, so I will answer my self. I found this link with the estimated costs for several cryptocurrencies: https://braiins.com/blog/how-much-would-it-cost-to-51-attack-bitcoin https://braiins.com/blog/how-much-would-it-cost-to-51-attack... It is given in dollars per hour. Compared to the cost of flying a F-35, a 51% attack would be like flying 20 F35s at the same time. Nothing too expensive for the military budget. It is just a squadron. EDIT: The updated cost is here: https://www.crypto51.app/ https://www.crypto51.app/ With the new hashrate, that would be only 16 F-35s