Michael Saylor Warns Against Onchain Proof-of-Reserves at Bitcoin 2025

At Bitcoin 2025, Michael Saylor, Executive Chairman of Strategy, called on-chain proof-of-reserves “a bad idea.” He explained that sharing wallet addresses can expose companies to risks, making them vulnerable to tracking and security threats. Saylor warned that this could weaken the safety of issuers, custodians, and investors. He added that AI could easily identify many security flaws, putting firms at long-term risk. His message was clear: On-chain proof-of-reserves may do more harm than good.