prompt-injection-email-samples
Open test set of .eml emails for checking how email security controls and AI mailbox assistants handle indirect prompt injection. It crosses three intents (system-prompt disclosure, data exfiltration, tool discovery) with three delivery methods (plaintext, hidden HTML, Base64), plus a benign control. All content is fictional and non-routable.
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Details
- External ID
- 1402265697
- Source
- GITHUB
- Company
- —
- Product
- prompt-injection-email-samples
- Website domain
- github.com
- Launched
- Oct. 2, 2026
- Cohort
- —
- Upvotes
- 8
- Upvotes percentile
- 0.021863612701717855
- Tags
- ai-security, email-security, email-security-testing, microsoft-defender-for-office-365, microsoft-security, prompt-injection, prompt-injection-defense, prompt-injection-detection, prompt-injection-protection, purple-teaming, red-teaming
- Fetched at
- Oct. 5, 2026, 5:03 p.m.
- Updated at
- Oct. 5, 2026, 5:03 p.m.
Enrichment
- Niche
- ai email assistants and agent platforms
- Vertical
- Security
- Function
- Observability & eval
- Audience
- Developer
- AI stance
- AI feature
- Project type
- Hobby / open-source project
- Normalized one-liner
- test dataset of emails for indirect prompt injection security testing
- Manually corrected
- False
Could you build this?
Yes It is an evaluation dataset consisting of static .eml email test files designed to test LLM prompt injection defenses.
Competitors
Other products that read as similar to this one — 61 launches clear the similarity bar, closest 8 shown.
Attention rank: #62 of 62 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 269 days after the earliest competitor.
- QuietMail · ph · 2026-10-06 · 2 upvotes · similarity 0.46
- EML Tool · ph · 2026-09-22 · 1 upvotes · similarity 0.43
- Malicious email · ph · 2026-10-03 · 1 upvotes · similarity 0.39
- AgentMail · ph · 2026-04-09 · 274 upvotes · similarity 0.39
- Inceptmail · ph · 2026-09-29 · 1 upvotes · similarity 0.38
- Email Subject Line, Inbox Preview Tester · ph · 2026-09-15 · 1 upvotes · similarity 0.38
- MailCat - for gmail power users · ph · 2026-10-04 · 1 upvotes · similarity 0.38
- AI Emaily · ph · 2026-07-07 · 165 upvotes · similarity 0.38
Other launches for this product
- No other launches for this product.
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