- Saylor highlights risks in proof-of-reserves practices.
- Security concerns over wallet address disclosure.
- Bitcoin ecosystem practices potentially influence financial transparency.

Lede: Michael Saylor, Executive Chairman of MicroStrategy, criticized on-chain proof-of-reserves during the Bitcoin 2025 Conference, highlighting security concerns and incomplete financial transparency.
Saylor’s stance challenges prevalent crypto industry practices, potentially impacting how institutions handle Bitcoin and similar assets.
“It actually dilutes the security of the issuer, the custodians, the exchanges and the investors. It’s not a good idea, it’s a bad idea.”
Saylor cited that on-chain proof-of-reserves dilutes investor security, presenting a liability. He believes it exposes organizations to increased attack vectors. Past failures like FTX and Mt. Gox have led to demands for transparency.
The Bitcoin ecosystem and connected assets like Ethereum are deeply involved. Saylor suggests such disclosures provide a partial picture of institutional health, emphasizing the omission of liabilities. Exchanges first adopted proof-of-reserves post-industry scandals.
Despite Saylor’s statements, major exchanges maintain proof-of-reserves. Community sentiment largely favors transparency, driven by historic corporate collapses.
The implications on market practices and institutional transparency remain under observation. The financial repercussions involve major custodians and their investment strategies. Historical events support Saylor’s claims regarding transparency shortfalls. This debate could influence future regulatory frameworks and institutional policies concerning cryptocurrency security standards.