Confidencial for Outlook

Send securely from Outlook. Stay in control after Send.

Organizations have invested heavily in identifying sensitive data and controlling how it leaves. But business still requires people to share it. Confidencial gives employees a secure way to do that, directly within Outlook, while extending visibility and control beyond the organization.

One-click protectionControl after sendWorks with Microsoft Purview
Data Exchange
See it work

One deal. Every workflow protected.

Step through a live M&A process: CIM distribution, financial disclosure intake, LOI countersignature, and revocation. All inside one platform with one audit trail.

Interactive Demo
What do you want to do?
Pick a workflow — see how Exchange handles it end to end.
Send
Send protected files to anyone. Policy travels with the file after it leaves.
Try it →
Request
Collect sensitive docs — encrypted before they leave the sender.
Try it →
Sign
E-sign agreements. Sensitive fields stay encrypted through signing.
Try it →
1
Add files
2
Recipients
3
Policy
4
Sent
5
Activity
Drop your files
Any file type · up to 1 TB · encrypts before upload.
Drop files here or click to add
PDF · DOCX · XLSX · any format · up to 1 TB
✓
Add files
2
Recipients
3
Policy
4
Sent
5
Activity
2 files added — 9.6 GB
Files encrypt on device before upload. Now add recipients.
PDF
CIM_ProjectHeron_CONFIDENTIAL.pdf
8.2 GB
XLSX
FinancialModel_Heron_v4.xlsx
1.4 GB
Recipients
AF
A. Fletcher
a.fletcher@harborviewcap.com
External
MO
M. Osei
m.osei@pinnaclegrowth.com
External
DN
D. Nakamura
d.nakamura@strandadvisors.com
External
✓
Add files
✓
Recipients
3
Policy
4
Sent
5
Activity
Set access rules
These rules travel with the file — enforced wherever it goes.
👁View-only — no download
🚫Block forwarding
💧Watermark on view
⏱Expires in 30 days
✓
Add files
✓
Recipients
✓
Policy
4
Sent
5
Activity
Sent · 3 recipients notified
Recipients get a link. Nothing else.
No account needed. Click, verify, access — policy enforced on open.
From: noreply@confidencial.io · To: a.fletcher@harborviewcap.com
D. Whitmore has securely shared files with you
Hi A. Fletcher,

D. Whitmore has shared 2 protected files with you. No account required.
Confidencial protects all information before it is transferred.
1
Build form
2
Send link
3
Received
4
Activity
What do you need from them?
Build a form or use a template. Everything submitted arrives encrypted.
Request name
Buyer Financial Disclosure — Project Heron
Form fields
Text
Firm name
Required
Text
AUM / Fund size
Required
File
Proof of funds document
Required
Text
Financing structure
Optional
✓
Build form
2
Send link
3
Received
4
Activity
They get a link. No account needed.
Fills out the form in their browser. Everything encrypts on their device before it leaves.
From: noreply@confidencial.io · To: a.fletcher@harborviewcap.com
D. Whitmore is asking you to securely submit information
Hi A. Fletcher,

D. Whitmore is requesting a secure submission for Buyer Financial Disclosure. No account required.
Confidencial protects all information before it is transferred.
✓
Build form
✓
Send link
3
Received
4
Activity
Received · encrypted on arrival
Submission arrived. Sensitive fields locked.
Encrypted before it left their device. Only your authorized team can read the sensitive fields.
Firm nameHarborview Capital Partners LLC
AUM / Fund size[ encrypted · authorized only ]
Proof of funds[ encrypted · authorized only ]
Financing structure[ encrypted · authorized only ]
SubmittedJun 19 · 11:42 · SHA-256 verified
1
Review
2
Sign
3
Sent
4
Activity
LOI_ProjectHeron_Harborview_v2.docx
Awaiting signature
Letter of Intent
Heron Data Systems Inc. · Harborview Capital Partners LLC · June 20, 2026
This Letter of Intent ("LOI") is entered into as of the date set forth above between Heron Data Systems Inc. ("Company") and Harborview Capital Partners LLC ("Buyer"). The Buyer hereby expresses its intention to acquire one hundred percent (100%) of the issued and outstanding equity interests of the Company for an aggregate purchase consideration as set forth in Schedule A hereto, subject to customary adjustments and satisfactory completion of due diligence.
This LOI shall not constitute a binding agreement except with respect to the exclusivity and confidentiality provisions set forth herein. The exclusivity period shall commence upon countersignature and continue for forty-five (45) calendar days thereafter.
Seller representative
D. Whitmore
Signed · Jun 20 · 08:41
Buyer — Harborview Capital Partners
Sign here
A. Fletcher
✓
Review
✓
Sign
3
Sent
4
Activity
Fully signed · audit certificate issued
Done. Cryptographic proof stays with you.
Both parties signed. The audit certificate lives in your environment — not a third-party vault.
From: noreply@confidencial.io · To: d.whitmore@heron.com
LOI_ProjectHeron — fully executed
Both parties have signed. Your audit certificate is ready.
Audit certificate
SHA-256 hasha3f2b9c1d4e7…08f1
Signature algoCRYSTALS-Dilithium (PQC hybrid)
Signers verified2 of 2 · identity-bound
Sensitive fieldsEncrypted throughout · principals only
✓
—
✓
—
✓
—
★
Activity
Access origin map
Authorized
Denied
Blocked
Immutable trace log
0 events
The email security gap

Your data protection shouldn't end at Send.

Every day, sensitive information moves through email to clients, partners, advisers, and third parties. But traditional controls face a difficult tradeoff: warn employees and hope they make the right decision, or block sharing and slow down business.

WITHOUT CONFIDENCIAL

The result?

Security knows what's sensitive, but can't always protect it where business actually happens.

The warning gets ignored. Labels and DLP alerts flag the risk, but employees with a legitimate reason to share may still send it unprotected.Unprotected
The workaround creates more risk. When secure sharing requires unfamiliar tools or extra steps, employees find easier ways to get work done.Workaround
The send becomes the handoff. Once it reaches an external recipient, traditional controls often can't track it or revoke access.Irrevocable
Even when information is classified and monitored, once it leaves the organization, visibility and control can disappear.No visibility
WITH CONFIDENCIAL

Let business move. Keep control.

Confidencial brings protected sharing directly into Outlook, so employees can send sensitive files and messages without choosing between security and productivity.

Encrypted, then sent as a secure link
The recipient gets what they need
Protection goes with the data
ENCRYPTEDTRACKEDREVOCABLENO ACCOUNT
Track access, revoke any time
Even after you click Send
One click. Persistent control.

Send as usual. Protect by design.

Instead of sending unprotected content through email, Confidencial encrypts it and delivers a secure access link. Protection doesn't stop when someone clicks Send. It goes with the data.

1

Compose

Write your email and attach files in Outlook, just as you normally would. When sharing sensitive information, select Protect and Send.

2

Protect

Confidencial removes the message content and attachments from the outgoing email, encrypts them, and sends a secure access link instead. No unprotected copy is left in the sender's Sent Items.

3

Share

Recipients receive an email from the sender's familiar address, with your organization's branding. They access the protected content through a secure link, without creating an account or installing software.

4

Control

Track access to protected content and revoke future access whenever necessary, even after sending. Protected files remain subject to access controls beyond your environment.

Compose in Outlook
Select Protect and Send
Your KMS & storage
Confidencial for Outlook
Powered by Confidencial Exchange
ENCRYPTTRACKREVOKE
Secure access link
No account. No install.
Access tracking
See who accessed what
Revocable after Send
Entire send or individual files
No changes to Exchange or mail flow. No recipient account. No unprotected copy in Sent Items.
Protection built into the workflow

Everything you need to share securely. Nothing you don't.

One-click protected sending

Protect attachments and message content directly from Outlook without switching applications or interrupting familiar workflows.

Control beyond the inbox

Maintain visibility into protected content after sharing, with access tracking and the ability to revoke access to an entire send or individual files.

No sensitive content left behind

Remove sensitive files and message content before email delivery, reducing the exposure of confidential information stored in mailboxes and Sent Items.

Frictionless recipient experience

Send branded notifications from your own email domain. External recipients can access protected content without a Confidencial account or special software.

Customer-controlled protection

Keep encryption keys in your organization's key management environment, with protected content stored in your cloud infrastructure.

Simple deployment and administration

Deploy as an Outlook add-in, control which users and features are enabled, and avoid changes to Exchange infrastructure or mail flow.

Better together

Microsoft Purview identifies the risk. Confidencial helps you act on it.

You've invested in discovering, classifying, and labeling sensitive information. But what happens when an employee has a legitimate business need to share it?

Blocking can interrupt business. Warning alone doesn't protect the data. Confidencial for Outlook complements Microsoft Purview by giving employees a protected alternative directly inside Outlook.

Move beyond identifying risk to protecting the information itself.

Recognize sensitive information

Surface existing Microsoft Purview sensitivity labels in the Outlook add-in.

Enable secure sharing

Give employees a protected path to send sensitive content, including when DLP policies block conventional delivery.

Extend control

Keep protected files under access control after they've been shared beyond the organization.

Built for the moments that matter

Sensitive information moves. Control should follow.

Four moments where sensitive information leaves through email, and what changes when it goes out with Protect and Send.

Misdirected email

The wrong recipient.

Autocomplete selects the wrong contact for a confidential client document.

With Confidencial

If sent using Protect and Send, revoke future access to the protected content instead of leaving it indefinitely accessible.

Client_Agreement_Confidential.pdfAccess revoked
Legal and M&A

The sensitive deal.

Legal teams and advisers exchange confidential transaction documents across organizational boundaries.

With Confidencial

Share protected documents directly from Outlook while retaining access visibility and revocation capabilities.

Purchase_Agreement_Draft.docxAccess tracked
Financial services

The regulated workflow.

Financial services teams need to share sensitive customer records with external parties while maintaining security controls.

With Confidencial

Give employees a protected sharing option that complements existing Microsoft Purview policies.

Customer_Records_Export.xlsxPurview label · protected
Account compromise

The compromised mailbox.

An attacker gains access to an employee's email account and searches Sent Items for confidential attachments.

With Confidencial

Protected sends contain secure access links rather than unprotected copies of the sensitive content, reducing what is exposed in the mailbox.

Sent ItemsSecure link only
Frequently asked questions

What security teams ask us first

Does Confidencial for Outlook replace Microsoft Purview?

No. Confidencial complements Purview's classification, labeling, and DLP capabilities by providing a secure way to share sensitive content and retain control after sending.

Does the recipient need a Confidencial account?

No. Recipients access protected content through a secure link without creating a Confidencial account or installing special software.

Can I revoke access after an email is sent?

Yes, for content sent using Protect and Send. Senders can revoke future access to the protected message and attachments. Revocation cannot undo information a recipient has already viewed or copied outside the protected experience.

Does it protect the entire email?

Confidencial protects message content and attachments sent using Protect and Send. Email subject lines are not currently protected.

Does it require changes to Microsoft Exchange?

No. Confidencial for Outlook works as an add-in and does not require changes to Exchange infrastructure or mail flow.

Does Confidencial automatically detect sensitive content?

Today, users initiate protection by selecting Protect and Send. Policy-based detection and recommendations or enforcement are planned capabilities.

Confidencial for Outlook

Keep business moving. Keep sensitive data protected.

Give employees a secure way to share from the inbox they already use, with protection that continues long after Send.