Your company’s signing identity
Your company’s provenance key is separate from other customers’ keys. It is not one shared provenance signing identity across the platform.
Secure business messaging & file sharingEvery message.
Every message.
Every file.Cryptographic proof.
We Secure Data includes mathematical, cryptographic proof with every message and file sent through the platform. Verify the recorded sender. Verify the exact content. Detect whether it has changed.
Give recipients evidence they can check—and keep proof of exactly what you sent. Encryption protects the content. Cryptographic signatures make its origin and integrity independently verifiable.
Register your interest now. We’ll let you know when company registration opens.
Proof for the sender.Proof for the recipient.Verifiable independently.
Think of it as a passport for your data.
DATA PASSPORTEXAMPLE- WHO
- Recorded sender
- WHAT
- Exact content
- WHEN
- Time recorded
- STATUS
- Unchanged
Every We Secure Data messageEvery We Secure Data fileCryptographically signed evidenceIndependent verification
YOUR COMPANY. YOUR SIGNING IDENTITY.
Every company has its own cryptographic signing key.
In We Secure Data’s certified message and file workflows, provenance evidence is signed using the owning company’s own key. Recipients check that signature with its corresponding public key and verify that the covered content matches.
Verifiable content integrity
Recipients compare the signature and signed file fingerprints to check the exact content covered by the evidence.
Independent verification
Check supported evidence using the corresponding trusted public key, including through offline verification workflows.
How company signing keys work →
A valid signature and trust in the company’s public key are two distinct checks. Both matter.
MORE USEFUL THAN AN ORDINARY ATTACHMENT
Everything email should have been.
Send confidential messages and large files. Control future access. See recorded activity. And give recipients independent cryptographic proof of what they received.
Retract Access
Withdraw future external access to protected messages and files when information goes to the wrong person or circumstances change.
Explore message retractionLarge File Transfer
Share substantial PDFs, videos, CAD files and document bundles through a protected exchange, within your plan’s actual limits.
Explore large file sharingFull Audit Trail
Review recorded sending, access, verification and download activity. Distinguish an access event from proof that someone read it.
Explore audit trailsCertified Forwarding
Let the next recipient check the original message and files, with the context and applicable evidence preserved.
Explore certified forwardingTRY A REAL SIGNATURE CHECKOne quotation. Two versions.
One quotation. Two versions.
Only one matches the proof.
Change the total and run the check. Your browser uses the same ECDSA verification implementation served by the We Secure Data application.
ILLUSTRATIVE DATA · DEMONSTRATION KEY
Northstar Design → Harbour & Co.
Quotation QT-1042 · 24 October 2026
Recorded sender: alex@northstar.example
Design and delivery services
Quotation total£4,800.00
INDEPENDENT CONTENT CHECK
Check the evidence yourself.
The original quotation’s signature is created with a fixed demonstration signing key and checked with its public key. The altered version is checked against that same signature.
No check run yet.
What is actually checked?
Your browser checks an ECDSA P-256 / SHA-256 signature over the exact quotation text. This working example uses illustrative data and a demonstration key. See the complete product evidence workflow →
The signature belongs to a specific signing key. In real We Secure Data exchanges, provenance evidence is signed under the sending company’s own key and checked with its corresponding public key. This illustrative demonstration key is separate from real customer keys. Learn how company signing keys are protected →
For a business exchange, check the signature against your supplier’s trusted public key. Learn how organisation identity and verification work →
Download the public test evidence (JSON)FAMILIAR TOOLS. A STRONGER EXCHANGE.
Fits the way your team works.
Send from the web, Outlook, Gmail, Windows Explorer or macOS Finder. Collect client documents through Secure File Drop and organise shared work in Secure Vaults.
Outlook, Gmail and desktop integrations are included with Professional and Business; setup is required.
Find your integration →AI CAN FAKE ALMOST ANYTHING.
Read the AI impersonation guide →
Make the important exchange verifiable.
A familiar logo or convincing email can be copied. Cryptographic proof lets recipients check the recorded sender and exact content against a trusted organisation key.
Retain the evidence bundle and its verifier for independent checks, including supported offline verification. Establish trust in the organisation’s key separately.
Explore independent verification →Read the AI impersonation guide →
Follow a recipient’s verification →BUILT AROUND BUSINESSExplore business workflows →
Put proof to work.
Protect the exchanges your clients and colleagues rely on.
Legal teams
Share case bundles and preserve the version sent.
Accountancy
Collect client records and send verifiable reports.
Engineering
Exchange substantial technical files and project decisions.
INCLUDED WITH BUSINESS
Your business data. Your recovery. Your control.
With We Secure Data Business, download an encrypted recovery package, retain your own private recovery key and recover backed-up data on your own computer—even without access to the We Secure Data platform.
Explore Independent Recovery- Customer-controlled recovery keys
- Encrypted offline backup packages
- Independent Windows and Mac recovery
- Recovery beyond hosted service availability
Simple SaaS pricing
Choose the SaaS plan that fits your team.
Cryptographic proof is included in every plan. We Secure Data runs the hosted SaaS platform; you do not need your own servers. Monthly prices shown exclude VAT where applicable.
Starter
£39/month
2 usersSecure, verifiable communication for small teams.
Secure Sending API — not included
Register for early accessProfessional
£99/month
5 usersOutlook, Gmail, We Secure Data Sync and secure sending from Explorer or Finder.
Secure Sending API — not included
Register for early accessBusiness
£249/month
15 usersEverything in Professional, including Outlook and Gmail, plus independent offline backup, the Secure Sending API, SSO and advanced reporting.
Register for early accessIndependent Backup & Offline Recovery
Keep an encrypted copy of your backed-up data and restore it offline using your own recovery key.
Explore Independent Recovery →Make your next important exchange verifiable.
Register your interest in the hosted platform, or discuss a dedicated environment for your organisation.
Explore dedicated deployment →