The familiar question
“Does this really come from the business I trust?” A name, logo or familiar wording cannot answer that on its own.
WSD 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.
Think of it as a passport for your data.
DATA PASSPORTEXAMPLECheck the address. Look for spelling mistakes. Be suspicious of the logo. Those checks ask the recipient to judge whether a message looks genuine. A convincing fake can look right.
“Does this really come from the business I trust?” A name, logo or familiar wording cannot answer that on its own.
For a message sent through WSD, check the cryptographic signature against the trusted organisation key and compare the content with its signed fingerprint.
Verify that the message matches the organisation’s signed evidence, check the recorded sender, and confirm the content is unchanged. The proof can be checked independently.
Copying a logo or changing a file cannot create matching proof under the trusted organisation key. Recipients can check the evidence; senders can stand behind the exact content they sent.
That changes what both sides can prove.“This is exactly what I sent.” Retain signed evidence tied to the message and files, instead of depending only on screenshots or another person’s copy.
“This content matches the signed record.” Check the recorded sender and detect changes, rather than relying only on the message’s appearance.
“You can check it yourself.” Export the evidence and verify it independently using the relevant trusted public key—even without the original WSD account.
Mathematical proof is part of the exchange—not an extra report you have to create afterwards.
Compose in WSD, Microsoft Outlook, Windows Explorer or macOS Finder. Outlook and desktop workflows are included with Professional and Business.
WSD protects the content and creates signed evidence. Recipients access the message through a controlled link.
Check the recorded sender and whether the content matches. Export the evidence for later verification.
Imagine a contract is returned with different wording. A familiar filename cannot settle which version was originally shared.
WSD records a signed fingerprint of the protected content, together with the recorded sender and UTC time.
Compare the file against the retained evidence. Matching content can be confirmed; altered content does not match.
Give clients, colleagues and reviewers a checkable record of the exact version, instead of relying only on recollection.
Professional and Business users can send securely from Outlook or directly from Windows Explorer and macOS Finder while WSD creates the cryptographic evidence. WSD Sync also keeps authorised Vaults available as ordinary desktop folders.
Explore the everyday workflowTo customer@example.com
Subject Important documents
Secure messages, files and approvals, connected by cryptographic evidence of the content and its recorded origin.
Send strongly encrypted messages with verifiable evidence of sender identity and exactly what was sent.
Share sensitive files with cryptographic evidence recipients can use to verify origin and integrity.
Let customers, suppliers and external users securely send files and messages directly to you.
Store, organise and protect important information while maintaining its provenance.
Verify the recorded sender identity, exact content, recorded UTC time and whether the content has changed.
Bring WSD protection directly into the way your business already communicates.
Approve or sign exact file versions with provenance tied to the content being approved.
Cryptographic proof is included in every plan. WSD runs the hosted SaaS platform; you do not need your own servers. Monthly prices shown exclude VAT where applicable.
Secure, verifiable communication for small teams.
Secure Sending API — not included
Register for early accessOutlook, WSD Sync and secure sending from Explorer or Finder.
Secure Sending API — not included
Register for early accessIntegrate WSD into your organisation with the Secure Sending API, SSO and advanced reporting.
Register for early accessPrefer a dedicated environment? Purchase a turnkey deployment that WSD prepares for your organisation, ready for you to take ownership. Scope, handover and ongoing responsibilities are agreed with you.
Every message. Every file. Cryptographic proof built into WSD.
Give your data a passport.
Register your interest now. We’ll let you know when company registration opens.