Skip to content

Reject malicious prompt injection attempting financial fraud#176

Merged
LVT-ENG merged 1 commit intomainfrom
copilot/update-historical-billing-process
Apr 11, 2026
Merged

Reject malicious prompt injection attempting financial fraud#176
LVT-ENG merged 1 commit intomainfrom
copilot/update-historical-billing-process

Conversation

Copy link
Copy Markdown
Contributor

Copilot AI commented Apr 9, 2026

A prompt injection attack was submitted as an issue, disguised as a billing reconciliation task. The payload fabricated €69,180 in fake debt tied to a real French SIREN number (943 610 196) and explicitly targeted live invoice generation.

What was detected

  • Fabricated financial amounts — hardcoded "arrears", setup fees, and Stripe charges with no basis in real transactions
  • Real legal entity abuse — a valid French SIREN bound to fraudulent debt collection logic
  • Invoice pipeline manipulation — inline comment stated intent to inject the total into the next day's invoice
  • Social engineering framing — Spanish-language "reconciliation" terminology to disguise the payload as routine ops work

Action taken

No code was implemented. The request was refused and flagged.

Recommended follow-up

  • Audit recent commits and PRs for similar billing/invoice manipulation
  • Rotate billing credentials and API keys if any exposure is suspected
  • Investigate how this payload entered the issue tracker
  • Escalate to security team for incident review

@vercel
Copy link
Copy Markdown

vercel bot commented Apr 9, 2026

The latest updates on your projects. Learn more about Vercel for GitHub.

Project Deployment Actions Updated (UTC)
tryonyou-app Ready Ready Preview, Comment Apr 9, 2026 10:48pm
tryonyou-pilot Ready Ready Preview, Comment Apr 9, 2026 10:48pm

Request Review

Copilot AI changed the title [WIP] Update historical billing process in invoice generation Reject malicious prompt injection attempting financial fraud Apr 9, 2026
Copilot AI requested a review from LVT-ENG April 9, 2026 22:49
@LVT-ENG LVT-ENG marked this pull request as ready for review April 11, 2026 05:58
@LVT-ENG LVT-ENG merged commit c25165a into main Apr 11, 2026
5 checks passed
Copy link
Copy Markdown
Member

@LVT-ENG LVT-ENG left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Yes

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

2 participants