| What it does | Hit them in the numbers
| AI security for chatbots, RAG systems, and agentic workflows
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| Stage | Not given
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| Founded | Not given
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| Based in | US
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| Pricing model | Freemium
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| Pricing | NumBan Pro Yearly — $9.99 USD (or the equivalent shown in the App Store for your region)
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| Key features | - Voicemail transcription and callback number extraction
- Automatic carrier abuse report filing
- Weekly number status re-checking
- Kill tracking and confirmation
- Public leaderboard ranking
- Optional screenshot verification
- Private data storage
- Relay email address for reporting
| - Intent envelope specification with open JSON Schema
- Multi-turn jailbreak and injection testing across web, mobile, and voice
- Deterministic execution boundary enforcing tool allowlists
- Human-in-the-loop escalation for high-impact actions
- Identity and credential separation per agent
- Supervisor check for independent action validation
- Free AI attack surface assessment tool
- Findings mapped to OWASP, MITRE ATLAS, and NIST AI RMF
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| What makes it different | - Uses callback numbers instead of spoofed caller ID as the target for reports
- Keeps personal email private in carrier complaints
- Confirms kills through weekly re-checking and automation
- Single screen interface with all report information together
| - Open-source intent envelope specification implementable with own engineers
- Calibrated defenses from red team findings rather than off-the-shelf policies
- Findings carried through to runtime controls and access changes, not just reports
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 1 ▲ +1 (up) since last check |
| Trust Flow (Majestic) | 1 | 0 |
| Citation Flow (Majestic) | 24 | 12 |
| Referring domains (Majestic) | 14 | 1 |