Harvest Now, Decrypt Later Is a Balance-Sheet Problem
Post-quantum migration is usually framed as a distant cryptographic event. For any organization holding data with a decade-long confidentiality horizon, it is a liability being accrued today. We walk through how to think about migration not as a compliance deadline but as a discounting problem, why crypto-agility is the real asset, and where we see durable companies forming around discovery, inventory, and transition rather than around new primitives.
Most conversations about post-quantum cryptography anchor on a date — the moment a cryptographically relevant quantum computer exists. That framing invites procrastination, because the date is uncertain and probably years out. But it misreads the risk. An adversary does not need a quantum computer today to harm you today; they need only to capture your encrypted traffic today and store it until one exists. The exposure is being created now.
Seen that way, the problem is a discounting problem, not a deadline. If you hold data whose confidentiality must survive ten or twenty years — health records, state secrets, financial identities, long-lived credentials — then the present value of a future decryption event is already material. The liability is being accrued with every session you encrypt under a scheme you expect to break. The right question is not 'when is the deadline' but 'what is the confidentiality horizon of the data I am transmitting, and does it exceed the time until this cipher falls.'
The scarce asset in the transition is not a new primitive. NIST has standardized the algorithms; the math is not the bottleneck. The bottleneck is knowing what you have. Most large organizations cannot produce an accurate inventory of where cryptography lives in their stack — which services, which libraries, which hardcoded assumptions, which vendor dependencies. Crypto-agility, the ability to swap algorithms without re-architecting, is the real capability, and almost no one has it.
That is where we see durable companies forming: in discovery and inventory of cryptographic assets, in the migration tooling that makes agility real, and in the transition layer that lets an enterprise move without a forklift upgrade. The new primitives will be commodities. The muscle to find, prioritize, and replace at scale, across a heterogeneous estate, is the enduring business.
The views above are those of Sentinel Ventures and are for informational purposes only — not investment, legal, or tax advice.