Box Shield alternative
Box Shield picks who opens the file. It never changes what is inside it.
Box stores your files. DataGuard checks what leaves them. It keeps the record, not the file.
Whoever clears the gate gets the whole document. DataGuard reads the same file through Box and checks it on the way out, so only the recipient's part leaves, with the rule it matched on every removal.
DataGuard runs on top of Box. It keeps the record, not the file. Box's own pricing table quotes Shield separately, on top of the plan.
Every claim below links to Box's own documentation. Checked 29 Aug 2026.
The gap
A gate picks the reader. It does not change the document.
Box · Shield
Both answers are wrong for the expert who needs the facts but not the names.
Sidian DataGuard · pre-flight
The line is gone from the copy that leaves. The rule it matched is on the record, and a person cleared it.
Feature by feature
What each one does to the document
| Capability | Box | Sidian DataGuard |
|---|---|---|
| 01Pre-flight checksWhat happens at the moment something is about to go out. | ||
| Checks a file at the moment it goes out | Box: partly. Classification policy can act when content is shared or downloaded. What it acts on is access to the file, not the sentence inside it.1 | DataGuard: yes. Yes. Every share through a connected source runs the pre-flight first. |
| What the check can do about it | Box: yes. Label it, detect a threat, or restrict access. Strong, documented Shield actions, and they stop the wrong people reaching the file at all.1 | DataGuard: yes. Remove the passage. The send then completes. |
| Removes sensitive text from the outgoing copy | Box: no. No. The file that reaches an allowed recipient is the file as it sits.1 | DataGuard: yes. Yes. The passage is gone from the file that leaves. |
| How often the detection is right | Box: no. Box publishes no accuracy figure for AI Classification.1 | DataGuard: yes. 98% on names, organisations, dates, account numbers and IDs in legal documents, tested on real ones. The rest is what the review pass is for. |
| A person approves before it leaves | Box: no. Nothing to approve. Policy runs at the gate.1 | DataGuard: yes. Every flagged item, every send. DataGuard proposes, your team decides. |
| 02Your rules, and what you can seeWhose rules apply, whether they change with the recipient, and whether anyone can see everything that left. | ||
| The rule changes with who is receiving it | Box: no. Access policies can differ by person, group or device. What each of them opens is the same file.1 | DataGuard: yes. Yes. One document, a version per recipient, each one cleared by your team. |
| One rule set across every system you use | Box: no. Classification policies are configured in Box, for content in Box.1 | DataGuard: yes. One policy set, applied to every connected source. Written once. |
| One view of everything that left | Box: partly. Access and threat logs, with documented SIEM and CASB integrations to roll them up.1 | DataGuard: yes. One view across every connected system: what left, when, and to whom. |
| Finds sensitive content in the first place | Box: yes. Yes. AI Classification applies a label, with reasoning shown on Shield Pro.2 | DataGuard: yes. Yes, and flags each item for a person to clear. |
| Included in the plan price | Box: no. No. Classification and access policies are marked as a Shield add-on on Box's own pricing table.3 | DataGuard: yes. Included. No separate add-on quote. |
| 03Sharing into AIWhat an assistant reads when it is pointed at the file. | ||
| What an AI assistant reads | Box: partly. The real document. Box AI is bounded by what the user may already access.4 | DataGuard: yes. A synthetic mirror. Names and numbers are swapped for stand-ins in the copy the model reads. |
| Outside AI tools your team already uses | Box: partly. Box AI runs over content in Box, on the model you pick inside it.4 | DataGuard: yes. Claude, ChatGPT and Copilot read the mirror through a shared folder link. |
| 04Proof, afterwardsWhat you can show a client, an auditor or a court, and how fast. | ||
| What the log proves | Box: partly. Access and threat activity: who opened what, when, and what the detector saw.1 | DataGuard: yes. Every item removed, the rule it matched, and the person who cleared it. |
| Getting it out for an auditor | Box: no. Access logs, plus whatever your SIEM assembles from them.1 | DataGuard: yes. One audit pack, mapped to CCPA, SOC 2 and ISO 27701 control objectives. Mapping, not certification. |
| 05Where your files liveWhich of these two is a place your documents sit. | ||
| Malware and ransomware detection on the stored content | Box: yes. Yes. Deep-learning detection, and a ransomware detector on Shield Pro.1 | DataGuard: no. No equivalent. If your firm runs Shield for this, keep running it. |
| Stores your files | Box: no. Yes. That is the product, and a good one.1 | DataGuard: yes. No. It reads each file where it already sits, and keeps nothing afterwards but the record. |
| A second copy of the file, just to share it | Box: no. Files live in Box as well as wherever else your firm keeps them.1 | DataGuard: yes. None. Reads and writes where the file already is. |
One row goes Box's way outright, and two are a tie. The outright ones are ruled in green. Where Box is stronger, and what DataGuard does not do at all, are set out in full directly below.
1 box.com/shield — Box Shield capabilities. Checked 2026-08-29.
2 docs.box.com — AI Classification. Checked 2026-08-29.
3 box.com/pricing — threat detection, native security classifications and classification-based access policies marked “Via Shield Add On”. Checked 2026-08-29.
4 box.com/ai — Box AI respects existing permissions and access controls; users generate outputs only from content they already have access to. Checked 2026-09-06.
Honestly
Box and DataGuard, both directions
Where Box is stronger
Reasons to keep it, and reasons a firm bought Box in the first place.
- Classification at scale. Labels applied manually or by policy across upload, share, preview, edit and download, including files generated by AI.
- Threat detection. Deep-learning malware detection, and on Shield Pro a ransomware detector that kills the session when mass encryption syncs back through Box Drive.
- Smart Access. Classification-driven policies that keep labelled content off unmanaged devices and out of external shares.
- A real platform. A documented API, SIEM and CASB integrations, and a content layer a firm can standardise on.
What DataGuard does not do
Scope, not a roadmap. If you need these, you need them from something else.
- Store your files. There is no DataGuard file system. Box stays where the documents live; DataGuard reads and writes in place and keeps the record of what it did, not the file.
- Sync, share links, or set folder permissions. No desktop client, no link management, no permission model. That is Box's job and it stays Box's job.
- Detect malware or ransomware. Shield's threat detection has no counterpart here. If your firm runs it, keep running it.
- Become your system of record. Nothing held in DataGuard is authoritative, so there is nothing to migrate in and nothing to migrate back out.
- Catch everything, every time. No detection is perfect, which is why a person clears each flagged item and why the check is a second pair of eyes rather than a replacement for the first.
Price
What it costs
The ladder below is what a firm already pays Box for storage, and it is not what this page compares. Box's own pricing table marks three of the capabilities this page is about as sitting outside it: Shield is quoted separately, and Shield Pro is an add-on on top of that.
Stack every tier and every add-on and the outcome does not change: the document is labelled, and it goes out whole.
DataGuard, per user / month
30-day free trial, full product, no card.
Annual billing, three-seat minimum. box.com/pricing, checked 29 Aug 2026.
Marked on Box's own pricing table
The stack
What changes on Monday
The source is never altered. What goes out is a separate, logged copy your team can trace to the person who cleared it.
With Box in the middle
Two homes for one document
- Which copy is current? The two answer differently.
- Two permission sets to keep in step, by hand.
- A second seat for the privilege of the duplicate.
With DataGuard
One source. A checkpoint on the way out.
- The source is never altered. It stays in SharePoint.
- Your permissions stay yours. Nothing to mirror.
- The outgoing copy is logged, traceable to who cleared it.
You keep
Box, and SharePoint, Drive, Outlook and Clio alongside it. Your folder structure, your naming, your DMS.
You drop
The Shield quote stacked on top of your Box plan. The Box seats stay.
Getting started
Connect the sources, pick the removal rules your firm already follows, and run one live matter through the pre-flight. Hours, not a migration.
Questions
The ones that come up on every call
No. DataGuard connects to Box and reads each file where it already sits. Box stays your document store, and nothing migrates. What it replaces is Shield, the add-on quoted on top of your plan to keep sensitive documents from going out whole.
See it on one of your own matters.
Bring a closed matter, or ask for an NDA and bring a live one. We'll run it through the pre-flight on the call.