Critics Call ‘Bunker Mode’ an Impractical Defense for Crypto

The debate matters less for the AI threat itself than for what it reveals about crypto's security assumptions: most user holdings sit in systems that cannot be unilaterally hardened, so any response requiring isolation collides with the composability the sector depends on. The practical divide is between protocol-level cryptographic migration and user-level operational retreat, and critics are signaling the latter scales poorly. Whether the industry treats post-quantum migration as a coordinated upgrade problem or an individual defense problem is the open question.