In the wild.
70+ examples. One primitive. Across industries and data flows.
Polymonial does a lot. These use case examples show how — across the flows your business already runs (a CSV, an API, an EDI feed, a healthcare record exchange etc) and the problems it already faces (proving compliance, sharing data with partners, migrating off legacy crypto etc). Filter by your sector, the data flow you have today, the theme you care about, or the problem you’re trying to solve.
Don’t see your problem here? Contact us and we’ll see how we can help, or join the waitlist!
EXA2
Finance
Investor Due Diligence
Prove your financials match every diligence criterion — without opening a data room.
EXA4
Finance
Tenant References
Prove you qualify to rent — without handing over months of bank statements.
EXA5
Finance
Multi-Jurisdiction Compliance
One dataset. Many regulators. Each gets their proof — no data crosses any border.
EXA6
Finance
Sanctions Screening
Screen your customers against sanctions lists — neither side sees the other's data.
EXA7
Finance
Trade Finance
Prove every clause of a letter of credit is satisfied — without exposing the trade.
EXA9
Finance
Cross-Border Tax Reporting
Report to multiple tax authorities from one sealed dataset — each gets only its own answer.
EXA10
Insurance
Insurance Underwriting
Get a quote that reflects your real risk — without handing over your medical history.
EXA11
Healthcare
Clinical Trials & Personalised Medicine
Combine trial results across hospitals worldwide — without a single patient record crossing a border.
EXA12
Healthcare
Encrypted Medical Records
Encrypt every patient record once. Doctors see only what they need — enforced by maths, not policy.
EXA13
Universal
AI Training Data
Prove your AI model meets every regulatory test — without revealing the data or the weights.
EXA15
PublicSector
Sovereign Training Data Provenance
Prove your sovereign model was trained on cleared, in-country data — without revealing the corpus.
EXA17
Healthcare
Federated Hospital Analytics
Aggregate clinical statistics across hospitals — without sharing a single patient record.
EXA19
Healthcare
Genomic Privacy
GA4GH Beacon-style variant queries on sealed genomes — federated GWAS, PRS, and variant-frequency studies progress without the sequence ever leaving the contributor.
EXA23
PublicSector
Election Integrity
Every voter gets a receipt. The total is publicly verifiable. Ballot secrecy holds.
EXA24
Media
Whistleblower Communication
Multi-hop confidential reporting where every byte of metadata reveals nothing.
EXA25
Utilities
Smart Metering
Accurate billing without revealing when you're home, when you wake, when you leave.
EXA26
Insurance
Connected Vehicles
Telematics + V2V data flows under UN R155 / R156, AUTOSAR PKI, IEEE 1609 — Polymonial seals at the ECU so safe-driving proofs reach insurers without the full route, time, or behavioural pattern.
EXA27
Utilities
Critical Infrastructure Telemetry
Telemetry over IEC 61850 / DNP3 sealed at the device. NIS2 + IEC 62443 zone/conduit objectives met without the grid map ever leaving the operator's perimeter.
EXA29
Finance
Threat Intelligence Sharing
Sector ISACs exchange STIX 2.1 indicators over TAXII 2.1 — Polymonial wraps the bundle so cross-correlation runs across every member without exposing any single contributor's customer list, network map, or detection method.
EXA30
Finance
Bitcoin Wallet Protection
Migrate your Bitcoin to quantum-safe cryptography — no hard fork, no new address, no protocol change.
EXA31
Universal
Certificate Migration
Move 10,000 TLS certificates to post-quantum cryptography without re-issuing through every CA. Code unchanged.
EXA32
Finance
Stablecoin Audit
Prove every coin is backed by reserves — without exposing portfolio composition or counterparties.
EXA33
Universal
Cross-Chain Bridge
Move value between blockchains with cryptographic proof — not validator trust.
EXA34
Finance
Crypto Tax
Report capital gains to your tax authority — without exposing your full wallet history.
EXA35
Media
Media Provenance
C2PA content credentials + JPEG Trust + W3C Verifiable Credentials — Polymonial seals the sensor-to-broadcast chain so authentic footage carries an unforgeable lineage and deepfakes don't.
EXA36
Retail
Supply Chain
GS1 EPCIS traceability + ISO 22095 chain of custody + GS1 Digital Link — Polymonial seals the manufacturer-to-customer chain so authentic products carry an unforgeable lineage and counterfeits don't.
EXA38
Universal
Sealed File Drops
SFTP CSV file drops still leak plaintext PII daily — Polymonial seals them at the row level so the recipient queries instead of reads.
EXA39
Retail
EDI Without Eavesdropping
EDI invoices and ASNs flow plaintext through every node in the trading chain — Polymonial seals each segment so intermediaries see only their slice.
EXA42
Universal
Federated BI
Self-service BI tools today connect directly to the warehouse and see raw rows — Polymonial wraps the OData feed so analysts get aggregates, not row access.
EXA44
Utilities
Smart-Meter Telemetry
Smart-meter telemetry crosses utility brokers, ISP backbones, and third-party aggregators in plaintext. Polymonial seals each message so the granular pattern never leaves the meter.
EXA45
Universal
Embedded Device PQC Readiness
Hundreds of millions of embedded devices — smart meters, connected vehicles, medical devices, industrial sensors, payment terminals — were deployed with classical cryptography baked into firmware. NIST has finalised the PQC standards (FIPS 203/204) and the migration runway has started. Polymonial is crypto-agile by design: each device migrates on its own schedule, and yesterday's signed reading still verifies tomorrow.
EXA46
Manufacturing
Industrial IoT Vendor Telemetry
PLC sensors stream telemetry to vendor clouds for predictive maintenance — and accidentally expose your production secrets.
EXA49
Universal
OAuth Identity Token Slimming
Single sign-on tokens leak the full user profile to every relying party — Polymonial wraps the assertion so only requested claims decrypt.
EXA50
Universal
Email Attachment Sealing
The biggest data leak in your organisation isn't a hacker — it's that email you sent yesterday with the customer spreadsheet attached.
EXA51
Universal
Internal Report Distribution
One Monday-morning exec report ships to ten inboxes today — Polymonial gives each exec their own view from the same sealed file.
EXA52
Universal
GDPR Subject Access Response
The Subject Access Request bundle that doesn't expose the subject — assemble from sealed slices, ship as a sealed package.
EXA53
Universal
Vendor Due Diligence Evidence
Prove every SIG / SOC2 / ISO control without handing the buyer your operational map.
EXA54
Finance
Third-Party Data Feed Queries
Pay for the market-data, credit-reference, or weather feed without giving the vendor a free intelligence feed on your strategy.
EXA55
Universal
Customer Support Ticket Privacy
Customers paste credentials into support tickets — Polymonial detects and seals before tier-1 sees them.
EXA56
Universal
Document Signing Privacy
Multi-party contracts share the entire document — Polymonial gives each signatory only the slice they need to see.
EXA57
Universal
Mobile App Telemetry
Your app uploads everything the user touches — Polymonial seals events so the backend gets analytics, not behavioural fingerprints.
EXA58
Universal
Audit Log Access by External Auditors
External auditors demand 12 months of log access — Polymonial wraps the feed so they verify controls without reading your activity.
EXA59
Universal
Sealed Bids in Procurement
Procurement teams see all bids before deciding — Polymonial seals each bid so nobody peeks before the deadline.
EXA60
Universal
HR Onboarding Fan-Out
One new-hire form fans out to 7 systems — Polymonial gives each system only the fields it needs.
EXA61
Universal
Cross-Border Data Transfer
Schrems II says assume hostile foreign surveillance — Polymonial says the surveiller finds nothing usable.
EXA63
PublicSector
Trust-No-Party Audit
Prove the scheme hits its collection target — with the regulator re-verifying everything itself and trusting no operator.
EXA65
Insurance
Insurance Claims
Settle a claim in the browser — without the policy, the diagnosis or the loss report ever leaving the claimant.
EXA66
Finance
Loan Decisioning
Prove you qualify for the loan — without handing the lender your entire financial life.
EXA67
Finance
Fraud Screening
Spot fraud patterns across banks — without any bank exposing its transaction graph.
EXA68
Universal
AI Act Compliance
Prove your AI system meets its regulatory obligations — without exposing the model or its training data.
EXA70
Healthcare
Confidential Diagnostics
Run the diagnostic model in the browser — the patient scan never leaves the device.
EXA71
Logistics
Aviation Data Authenticity
Prove a data feed is genuine and unaltered — from the source, not the middleman.