DATAGUARD/by SidianJune · 2026
For law firms and regulated practices

We stop leaks.
You stay compliant.

DataGuard stops client data from leaking when your firm shares externally. It keeps the record to prove it.

Not a security platform. One job, done well.

Outlook · New message
Toben.reichwein@…
Client info review
DOC
INTERNAL_ONLY_
Patient_Incident…

Hey Ben, found this health document from our client. Can you review the diagnosis?

DataGuard11 categories · 1 exempt
DOBRemove
EmailRemove

Under CPRA §1798.140(v), Email Address is classified as Contact Information and must be removed.

Select all (41)Redact
2 categories exempt · business purposeaudit logged ✓
DATAGUARD/by Sidian02 / 08
II
The quiet cost of sharing

Most data leaks aren't malicious.
They're hurried.

An email sent in a hurry. A hidden tab of client data. A folder with one document too many.

And the firm is usually the last to know.

What one leak can cost
01

Breach duties

Mandatory disclosure to clients and regulators.

02

Privilege waiver

Protected work, exposed.

03

Malpractice

Claims and bar complaints.

04

Lost clients

Trust rarely comes back.

Firms don't lose clients to bad work. They lose them to broken trust. And traditional tools either block everything, or see nothing.

DataGuard is different.

It only acts when something sensitive is about to leave. Before the damage. Not after.

DATAGUARD/by Sidian03 / 08
III
One job, done at the moment of sharing

A checkpoint.
Not a platform.

Everything leaving your firm passes one checkpoint. Clean work flows through. Sensitive data doesn't.

01 · Intake

Something leaves

An email, a share, an AI prompt.

02 · Screen

DataGuard reads it

Sensitive data redacted in place. Statute cited.

03 · Release

Safe content goes out

Risk flagged. Everything logged.

DataGuard is
  • Leak prevention at the moment of sharing.
  • Automatic redaction. Statute cited, every time.
  • An audit trail that builds itself.
DataGuard is not
  • An enterprise security suite.
  • A document vault.
  • An IT project. You're live in five minutes.

Already have a security team? Keep it. We stop the leak before it leaves.

DATAGUARD/by Sidian04 / 08
IV
Product 01 / Email Protector

Every leak starts as
an ordinary email.

The problem

Wrong recipient. Wrong thread. A hidden tab of client data. One hurried send can mean breach duties and a privilege fight. It happens at every firm, every week.

01

Scans every email and attachment before it sends.

02

Redacts sensitive data automatically. Clear preview. One-click exemptions.

03

Catches misaddressed messages before delivery.

Audit logToday · 41 sends
02
High
07
Medium
32
Clean
Schedule_2026.xlsxHigh
Referral_letter.pdfMedium
Cover_note.docxClean
Invoice_0421.pdfClean
Redact, don't block — every send recorded.
Every send ranked High · Medium · Clean. Real leaks in seconds. No noise.
Redact, don't block. Your team keeps working.
Right inside Outlook. Nothing new to learn.
DATAGUARD/by Sidian05 / 08
V
Product 02 / Governed Sharing

Days of document review.
One governed share.

The problem

Associates spend 2 to 3 days per production combing files by hand. Miss one thing, and there's no audit trail and no defensible answer for a regulator or opposing counsel.

01

Create one governed share. Import from Microsoft 365, Google, or Clio.

02

Bulk-redact hundreds of documents. Every finding cites the statute.

03

Policy governs it. The audit log proves it.

HIPAA · GDPR · CPRA · PIPEDA · PIPABC. Or your own firm policy.

98%
Accuracy on legal entities
11 → 1 day
Typical production cycle
Every finding
Cites the statute behind it
DATAGUARD/by Sidian06 / 08
VI
Product 03 / AI Privacy Layer

Your team is already using AI.
Make it safe today.

The problem

Your staff paste client data into ChatGPT and Copilot every day. It reaches an outside model with nothing governing it. Banning AI just pushes it underground.

01 · Prompt

Someone asks AI

A memo goes into ChatGPT or Copilot.

02 · Strip

DataGuard intercepts

Sensitive details stripped before it leaves.

03 · Model

AI answers safely

The model never sees client data.

01

Works with ChatGPT, Copilot, and other frontier models.

02

Formal DPAs with AI providers. Privilege holds.

03

Every prompt logged. One audit trail across all three products.

Your team gets the productivity. Client data stays home.

DATAGUARD/by Sidian07 / 08
VII
How we earn it

Your files stay yours.
Always.

01

Files stay on your servers.

Scanned and redacted in place. Nothing goes to a third-party cloud.

02

Private AI models.

Sidian's own models. Never trained on your data.

03

Every action accountable.

Every share logged. Every redaction reversible by an admin.

04

Audit-ready by default.

Everything recorded automatically. The compliance file writes itself.

Live in under five minutes.

No IT project. No consultants. Turn it on today.

Self-serve setup
Aligned out of the box
HIPAAGDPRCPRAPIPEDAPIPABC
DATAGUARD/by Sidian08 / 08
VIII
Licensing

Three tiers.
One free month.

Getting started

Base

$39USD / user / mo

Small teams getting started with compliance.

Documents
500 / mo
AI analysis
Private Sidian
Redaction
Automatic
Policies
Up to 3
Role controls
Not included
Audit log
30 days
Priority support
Not included
Most popularGrowing practice

Pro

$74USD / user / mo

Growing firms that need more capacity and access controls.

Documents
2,500 / mo
AI analysis
Private Sidian
Redaction
Automatic
Policies
Up to 15
Role controls
Included
Audit log
90 days
Priority support
Not included
Practice-wide

Unlimited

$249USD / user / mo

High-volume practices and large organizations.

Documents
Unlimited
AI analysis
Private Sidian
Redaction
Automatic
Policies
Unlimited
Role controls
Included
Audit log
1 year
Priority support
Included
01

Free for 30 days. Full product, no credit card. Cancel any time.

02

License customizations. Hybrid tiers, custom policies, volume pricing on request.

03

Onboarding included. Your team is live in under a week, not a quarter.

See your own documents redacted, live.

Bring one real document. 15 minutes. Then 30 days free.

See your own documents redacted, live.

Bring one real document. 15 minutes. We'll show exactly what gets caught, what flows through, and what setup looks like inside your cloud. Then 30 days free.