Adversaries are recording your encrypted data today to unlock it the moment quantum computers arrive. It's called Harvest Now, Decrypt Later. Secuur grades your exposure, then makes you quantum-safe — without changing how your business runs.
RSA-2048 & ECDHE — strong against today's computers, defenceless against tomorrow's. Harvestable right now.
Encrypted traffic copied today can be stored cheaply for years. When a capable quantum computer arrives, every harvested file is decrypted retroactively. Anything that must stay secret for a decade is already at risk.
NIST published FIPS 203, 204 and 205 in 2024 — the official post-quantum algorithms. The waiting game is over; the migration window is open and regulators have started counting.
Finance, healthcare, defense and the largest platforms are mid-migration. Hybrid post-quantum TLS is shipping in browsers today. The question is no longer if — it's whether you're early or exposed.
Imagine someone photocopies your locked diary and keeps the copy in a drawer. They can't read it — the lock is too good. But they're patient. They're waiting for a master key that hasn't been invented. That's Harvest Now, Decrypt Later. The diary is your data. The master key is a quantum computer.
Every login, payment and message is scrambled in transit. Safe — for now.
They can't read it, so they store the scrambled copy and wait. Storage is cheap. Patience is free.
The master key arrives. Today's lock pops in minutes. Every harvested copy is suddenly readable.
The fix isn't a stronger version of the same lock — it's a new kind of lock a quantum computer can't pick. That's post-quantum cryptography, and it's ready today.
Type a domain. We negotiate a real handshake, read its ciphers and signatures, and grade its exposure to Harvest Now, Decrypt Later — A through F. Free to run. No signup, no app changes.
Cryptography keeps changing. The winning move isn't picking the perfect cipher — it's being able to swap ciphers on demand without touching your apps. We call it crypto-agility, and it's the foundation of everything Secuur ships.
We run classical X25519 and post-quantum ML-KEM-768 together. If either is ever broken, the other still holds. No single point of failure.
Ciphers live in a policy layer, not in your code. New standard tomorrow? Flip a setting. Your apps never notice.
Secuur tracks the standards, the deprecations and the threats so your team doesn't. You stay current by default.
Each rests on a problem even a quantum computer finds hard. Secuur deploys all three where they fit best.
Hides secrets inside a grid of points so dense that finding the right one is hopeless — even at quantum speed. Fast and compact; the default for key exchange.
Builds signatures from hash functions we already trust completely. Conservative, battle-tested, and the safest fallback for signing.
Wraps data in deliberate, math-perfect errors only the keyholder can correct. Decades of scrutiny; rock-solid for long-term key transport.
In August 2024, NIST finalized the first post-quantum cryptographic standards — algorithms engineered to resist attacks from both classical and quantum computers. They are no longer research. They are federal standards, and migration begins now. Secuur is built on them.
Key encapsulation mechanism. Lattice-based (Module-LWE). The drop-in replacement for RSA and ECC key exchange — NIST's primary recommendation for TLS and hybrid key establishment. This is the one Secuur deploys to protect your data in transit.
Digital signature algorithm. Lattice-based (Module-LWE / SIS). The primary replacement for ECDSA and RSA signatures — recommended for code signing, TLS certificates and document authentication.
Hash-based digital signatures. Security rests solely on hash-function properties — the most conservative, best-understood assumption in cryptography. Larger signatures, but independent of lattice math: the safe fallback.
Fast lattice-based signatures (NTRU lattices). Compact signature sizes — ideal for constrained devices, IoT and bandwidth-limited environments. Draft standard, finalization underway.
Source: NIST Post-Quantum Cryptography Standardization ↗ · Full standards explainer ↗
Today's encryption hides a number so big that guessing it would take an ordinary computer billions of years. Totally safe — against ordinary computers.
A quantum computer doesn't guess one number at a time — it explores enormous spaces at once. The billion-year padlock becomes an afternoon's work. So we change the lock to one that math itself can't shortcut. That's all Secuur does — quietly, before the master key exists.
Every grade routes to a fix sized for you — self-serve checkout for smaller teams, a guided plan for regulated ones.
Every Secuur endpoint, API and internal link runs hybrid post-quantum encryption today. We migrated 100% of our own infrastructure first — then wrote down exactly how, so your migration is a known path, not an experiment.
We publish our own grade rather than claim a perfect one. Our key exchange scores 100/100, but across all eight layers secuur.me scores C — our edge still accepts TLS 1.0, our DMARC is on p=none, and we publish no DNSSEC. Scan us and check.
Testing, scanning, pipeline security and compliance evidence — each one also grading the cryptography underneath, which is the part everyone else skips.
Find every host, port, certificate and endpoint you actually own — then see which ones a quantum adversary is already recording.
Read more ↗Catch it at the pull request, not the pen test. Security checks that run on every build and fail loudly when they should.
Read more ↗Dynamic testing against your real applications — authentication, APIs, business logic and the crypto underneath them.
Read more ↗Security that lives in the pipeline: policy as code, signed artifacts, and crypto-agility built in from the start.
Read more ↗Human-led testing against your applications, network and cloud — with findings written for engineers and evidence written for auditors.
Read more ↗Continuous scheduled scanning at fleet scale — every domain, every week, without spending an analyst on it.
Read more ↗Run a programme without drowning in it — scoping, triage, deduplication and payout decisions handled by people who test for a living.
Read more ↗Evidence for SOC 2, HIPAA, PCI DSS 4.0, CMMC and CNSA 2.0 — generated from live systems, not assembled by hand the week before.
Read more ↗Pick the page built for your world — each cites the standards that apply to you.
Quantum-safe in a weekend, not a fiscal year. No app changes.
Your CBOM, your migration plan — in one sprint.
Crypto inventory for FFIEC, NY DFS, GLBA.
PHI stays private for decades. Be questionnaire-ready.
EO 14412 deadlines, CNSA 2.0, CMMC self-assessment.
Hybrid PQC at your edge in one config line.
The scan is free and takes 20 seconds. Everything after that is sized to fit you.