Post-quantum security for Naples businesses.Protection for long-lived data against “harvest now, decrypt later.”
RankShield signs identities and receipts with post-quantum cryptography so your proof outlasts the quantum transition. Attackers can copy your encrypted data today and wait for a quantum computer to break it, a strategy called harvest now, decrypt later. RankShield uses NIST-standard ML-DSA and SLH-DSA (FIPS 204/205), so the protection you rely on today still holds tomorrow — something you can verify yourself.
What is harvest now, decrypt later?
It's an attack where an adversary steals encrypted data today and stores it, waiting for a future quantum computer capable of breaking today's RSA and elliptic-curve encryption. The data doesn't need to be readable now — only still sensitive when the decryption capability arrives. For Naples legal, medical, financial, and title firms, whose records combine high sensitivity with long retention, that is a risk on the books today, not a future one.
A title company's mortgage file encrypted today with RSA-2048 stays sensitive for three decades — long enough for a quantum computer to arrive.
Post-quantum signatures and hybrid encryption keep long-lived records verifiable and confidential past the quantum transition.
Shared or long-lived cryptographic keys are a single point of failure attackers hunt for.
Per-identity post-quantum keys mean there is no shared secret to steal, and every principal is individually attestable.
A record signed with soon-to-be-deprecated crypto can't be trusted years from now.
Receipts signed with ML-DSA / SLH-DSA and sealed to a transparency log stay verifiable for the long run.
How RankShield applies post-quantum crypto.
RankShield doesn't invent a private scheme. It signs each identity and each protected action with NIST's finalized post-quantum standards and pairs that with a data-level roadmap: inventory your longest-lived sensitive data, then apply post-quantum or hybrid protection where the shelf life demands it. Post-quantum identity and the transparency log are live today.
Post-quantum — common questions
Is my data at risk if quantum computers don't exist yet?
Do I have to replace all my encryption immediately?
Related reading: Harvest now, decrypt later → What is verifiable security? →
Map your quantum exposure.
Tell us what long-lived sensitive data your Naples business holds, and we'll help you inventory it and apply post-quantum protection where the shelf life demands it.