Quantum computers work differently
Timelines for capable quantum computers remain uncertain. The practical question is whether data you protect today must remain confidential long enough that future cryptographic change matters.
The plain-language guide
Some of today’s encryption may not resist future quantum attacks. Kvantis audits your agreed systems and evidence to find where that matters, what it protects, and what should move to post-quantum cryptography first.
The problem
Almost every business uses encryption to protect customer records, contracts, payments and internal messages. That encryption relies on maths today's computers can't solve fast enough — but tomorrow's can.
Timelines for capable quantum computers remain uncertain. The practical question is whether data you protect today must remain confidential long enough that future cryptographic change matters.
Governments, banks and technology companies are already preparing. In August 2024, NIST finalised three post-quantum standards: ML-KEM, ML-DSA and SLH-DSA.
A quantum computer doesn't need to exist yet to put you at risk. Attackers can steal encrypted data now and wait until they can read it — a tactic called "harvest now, decrypt later."
If your data must stay confidential for ten years, you are already on the clock — whether or not anyone in the building works in security.
Why this matters
Personal details, accounts and transaction history stored under today's encryption could be decrypted later.
Long-term agreements, M&A documents and strategic plans may need to stay confidential well past 2035.
Medical files, payroll and employee records have long confidentiality lifetimes and high regulatory stakes.
Card data, transaction logs and banking integrations use encryption that will need upgrading in the coming years.
Factories, power grids, transport and medical devices often run older cryptography that is hard to find and replace.
DORA and NIS2 require relevant organisations to manage security and cryptography-related risks. They do not prescribe one PQC project or prove compliance on their own.
The hidden risk
This is one reason long-lived data matters. An attacker may collect encrypted material now and only gain more capability later; the practical response is to understand data life and cryptographic dependency before making changes.
Attackers copy encrypted data they cannot yet read, and store it.
Cryptographic standards and attacker capabilities evolve; the exact timeline is uncertain.
Prioritise systems and data whose confidentiality life, dependencies, and change lead time create real exposure.
The first step is not a wholesale migration. It is a clear audit of where quantum-vulnerable cryptography is used, what it protects, and what deserves attention first.
What we do
Kvantis is an independent, fixed-scope PQC readiness audit. We find quantum-vulnerable cryptography in the agreed scope, show what data or services it protects, and deliver a practical plan your leadership and technical teams can use. Coverage and limitations are stated clearly; it is not certification.
Within the agreed scope, we examine systems, software, certificates, suppliers, and interviews to find where quantum-vulnerable cryptography is used.
We show what each finding protects, how long that protection needs to last, who owns it, and how difficult it may be to change.
We set out what should be reviewed or moved to PQC first, and where a vendor review or specialist partner may be needed.
You get executive and technical outputs that put findings, ownership, and next actions in one place. Any assumptions and limitations are clear, not buried.
Who it's for
Payment data, customer records and trading systems all carry long-term confidentiality obligations.
Patient records, clinical systems and medical devices must stay confidential for decades.
Power grids, transport networks and industrial control systems depend on encryption that is hard to upgrade.
Classified and citizen data need cryptographic evidence that will stand up to future scrutiny.
Client files, contracts and M&A documents often need to stay confidential well beyond 2035.
Customer backups, vendor integrations and product data can live in old encryption longer than expected.
The best starting point is an organisation with long-lived sensitive data, complex systems, and a specific trigger—an audit, platform change, supplier question, or resilience review. We confirm fit before proposing work.
Why Kvantis
Kvantis begins with the evidence and the problem in front of you. We do not assume a software subscription is the answer before the facts are clear.
Evidence sources, access boundaries, retention, and delivery handling are agreed in writing. We work from client-approved material and state any limitations.
The same audit gives your board a plain-language summary and your engineers the technical detail. No translation layer needed.
Post-quantum standards are now available, but each organisation still needs to decide what applies, when, and why. We make that decision legible without pretending the future is certain.