Cardano Foundation research finds big reserves don’t guarantee proof-of-stake security

A paper presented at AFT 2026 maps when proof-of-stake networks can lean on their reserves, and when only fees will keep them safe A massive token reserve looks like the ultimate safety net for a proof-of-stake blockchain. New research from the Cardano ecosystem suggests that the net may have holes in it. A paper presented at the 8th Conference on Advances in Financial Technologies (AFT 2026) argues that a large stockpile of native tokens is not enough, on its own, to guarantee a network’s long-term security.