On the horizon
Quantum breaks the integration layer first.
The exposure isn't your laptops. It's every TLS handshake, signed token, certificate and long-lived encrypted payload moving between systems. That estate is the integration estate — and migrating it to post-quantum cryptography takes years, not a patch window.
The point of view
Quantum readiness gets discussed as though the hard part were the mathematics. It isn't. The hard part is that almost no enterprise can answer a much duller question: where, exactly, is cryptography used across our interfaces?
Not the laptops and not the disk encryption — the integration estate. Every API gateway policy. Every mutual-TLS link to a partner. Every signed JWT, every SAML assertion, every SFTP key that a supplier rotated in 2019 and nobody has touched since. Every message queue with TLS pinned to a certificate whose owner has left. That inventory is the deliverable that takes months, and everything else waits on it.
The timeline pressure is also widely misread. NIST finalised its first post-quantum standards in 2024 — ML-KEM for key establishment, ML-DSA and SLH-DSA for signatures — so the algorithms are no longer the blocker. But adopting them across a B2B estate means moving counterparties you do not control, on their schedule. That is a programme with a multi-year tail, not a configuration change.
And as the diagram above shows, the clock that matters is not Q-day. It is data lifetime. Traffic copied off the wire today gets read whenever the capability arrives. If something you send this quarter must stay confidential for a decade, its exposure was decided this quarter.
Services
Inventory, then sequence, then architecture. In that order — the third is worthless without the first.
Find out where cryptography actually lives in your integration estate — because almost nobody has that list.
Every gateway, message queue, SFTP partner link, signed token and embedded certificate. You cannot plan a migration against an estate you have not enumerated, and the enumeration is the part that takes longest.
Sequence the move to NIST's post-quantum standards across interfaces you don't fully control.
NIST finalised its first post-quantum standards in 2024 — ML-KEM for key establishment, ML-DSA and SLH-DSA for signatures. Adopting them across a B2B estate means moving counterparties too, which is a programme with a multi-year tail rather than a configuration change.
Rebuild the integration layer so the next algorithm change is a deployment, not another multi-year programme.
Most estates hard-code algorithm choices into hundreds of individual interfaces. Pulling that decision into a policy layer is the difference between a future change taking a sprint and taking a programme — and it pays for itself independently of quantum.
An honest caveat
We are not going to sell you a countdown clock. Estimates for a cryptographically relevant quantum computer range from roughly a decade to considerably longer, and the honest position is that the date is unknown.
What is not uncertain is the migration duration. Enumerating cryptography across a large integration estate, negotiating algorithm changes with partners, and rolling hybrid key exchange through production takes years of calendar time under any plausible schedule. You do not get to start when the date is announced.
There is also a straightforward argument for doing this work even if quantum never arrives on the predicted timeline. Most of what the programme produces — a real cryptographic inventory, automated certificate lifecycle, algorithm choice pulled out of hundreds of individual interfaces and into a policy layer — is ordinary good engineering that pays for itself the next time any algorithm is deprecated. Quantum is the forcing function, not the only justification.
Where we're based
India's first Quantum Valley Tech Park is being built in Amaravati, in Andhra Pradesh. IBM, Tata Consultancy Services and the Government of Andhra Pradesh are deploying an IBM Quantum System Two there, running a 156-qubit Heron processor — the largest quantum computer in the country. The park opened in January 2026 and the system is due to be fully commissioned by September 2026.
Integronauts is based in Guntur, one of the cities of the Amaravati Capital Region. That is the honest reason this practice exists: post-quantum readiness is not an abstract horizon item where we work — it is a machine being commissioned down the road, and a local ecosystem forming around it.
It changes nothing about the engineering. The cryptographic inventory of a European bank looks the same either way. But it is why we are building this capability now, rather than waiting to read about it in an analyst report at the end of the decade.
First step
A scoped cryptographic inventory across one domain of your integration estate. It is the input to every later decision, and it is useful on its own the moment a certificate expires unexpectedly.
