Documents scanned on the device, before the upload completes.
The file picker, drag-and-drop and paste all pass through one on-device scan with the same engine as prompts. Sensitive files are stopped, and the banner names what was found.

A single spreadsheet can carry thousands of identifiers.
Sensitive documents dropped into AI tools.
The challenge
Reconciliation files, customer exports and contracts are uploaded to AI tools for summarising and analysis, each carrying far more regulated data than any prompt.
Why existing controls miss it
Upload inspection usually needs a proxy that decrypts traffic, or a CASB integration that only covers sanctioned SaaS through its API.
How Deltawall enforces it
Deltawall parses the file in the browser before the upload request is made. If it contains a class your policy blocks, the upload is stopped and the classes are named. Nothing is sent to be analysed.
- PDF, DOCX, XLSX, PPTX, CSV, TXT, MD and JSON
- Scanned PDFs flagged as uninspectable
- Fails open on error or timeout
A clear reason, not a dead end.
The banner tells the user which data classes were found and suggests the safe path: remove them, or attach a sanitised copy.
- Stopped, not rewritten: the original file is never modified
- The same rule set as prompts
- Recorded as one line in the evidence log

Four steps. Quoted in writing.
Every tier includes the whole platform. What changes with size is the price per user, the setup scope and the service level.
Paid proof of value
Thirty days in your own browser estate, up to 100 users, on your sector's template. Credited in full against year one.
Tier by headcount
Starter for 100 to 249 protected users, Growth for 250 to 999, Enterprise from 1,000.
One-time setup
Rollout through your MDM, policy tuning to your data, and the works-council documentation.
Annual contract
Per protected user, billed annually. Monthly billing is available with a surcharge.
What buyers ask.
Can Deltawall redact inside a document?
Not today. A file that needs redaction is stopped, and the user is asked to attach a sanitised copy. In-place document redaction is on the roadmap.
What about scanned PDFs?
They are flagged as uninspectable, because there is no OCR. Your policy decides whether uninspectable files may be sent.
See it stop real-looking data in a real browser.
A 30-minute technical walkthrough: a prompt redacted, a file stopped, the dashboard, and an evidence pack verified offline in front of you.
No slide deck. Synthetic data only.
