| What it does | Security engineer and penetration tester offering expert security consulting and code review
| Code signing for AI skills and agents
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| Stage | Established
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| Founded | Not given
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| Based in | PL
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| Pricing model | Contact for pricing
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| Pricing | Invoicing in EUR or PLN; prepaid blocks upfront; project or retainer per statement of work
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| Key features | - Penetration testing for software including web, mobile, desktop, cloud and CI/CD systems
- Network and service infrastructure security review
- First-party source code review for vulnerabilities and risky patterns
- Third-party code and dependency review for supply chain risk assessment
- Security architecture for new and existing systems
- Security tooling design and engineering
- Incident response and crisis management support
- Workshops and talks for developers and security teams
| - Sign skills and agents with verified identity authentication
- Verify file integrity using SHA-256 fingerprints
- Offline verification without internet connection
- Public transparency log for accountability
- Revoke trust for compromised keys or bad actors
- Support GitHub, Google, Microsoft and company account authentication
- Command-line tool for integration with Claude and Codex hooks
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| What makes it different | - 12+ years of security experience with previous role at Opera Software managing security and bug bounty programs
- Calls out insecure designs plainly with evidence and specific solutions rather than security theatre
- Focus on durable, material improvements to security with lasting impact
- Holistic approach including user experience and product perspective beyond just security
- Extreme ownership, customer obsession, and focus on making real impact
| - Immutable transparency log that prevents silent key revocation
- Blocks unsigned or tampered instructions in Claude Code and Codex integration
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 55 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 17 | 1 |
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| Citation Flow (Majestic) | 39 | 19 |
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| Referring domains (Majestic) | 493 | 27 |
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Joshua Rogers
PromptSign.ai