Think like a hacker.
Move faster than one.
Arcseer is an autonomous AI offensive security platform that closes the loop between finding a weakness and fixing it. It tests your environment like a real adversary, monitors for the changes that warrant a fresh test, and lets you defend against what it confirms - immediately, not at the next quarterly review.
Test like an attacker.
Monitor like one's coming.
Defend before they do.
Adversarial Testing
- Exploits vulnerabilities autonomously
- Aligned to OWASP and MITRE ATT&CK
- Surfaces real attack paths, not theoretical ones
Continuous Monitoring
- Tracks your technologies and the changes that matter
- Tells you when a fresh test is warranted
- Flags emerging supply-chain exposure
Detection & Response
- Watches instantly for attacks against confirmed vulnerabilities
- Protects you in the window between discovery and patch
- Lets your team operate with earned confidence
What struck us wasn't the volume of findings - it was the quality. Arcseer identified a multi-step exploit chain across our internal infrastructure that had been invisible to our quarterly testing programme for over a year.
Standards & frameworks
ISO 27001OWASPMITRE ATT&CKGDPRCyber Essentials+ Built on clear principles.
Run full security assessments in hours rather than weeks.
Test continuously rather than relying on annual pentests.
Prioritised vulnerabilities with clear remediation.
Reliable results across environments and teams.
Security should move as fast
as your systems change.
Your environment never stops changing, so neither does Arcseer. We continuously monitor for the changes that introduce risk, automatically test where exposure has grown, and stand ready to defend against anything we confirm - closing the gap between a vulnerability appearing and your team being protected from it.
Security baked in,
not bolted on.
Arcseer integrates with modern development and deployment workflows to ensure security testing evolves with your systems.
CI/CD Integration
Security testing triggered automatically during builds and deployments — catching issues before they reach production, without slowing delivery teams down.
Active Exposure Management
When infrastructure, dependencies, or application behaviour changes, Arcseer identifies potential exposure and automatically schedules targeted testing.
Security Gates
Enforce risk thresholds before releases proceed — giving security teams control over what ships without creating delivery bottlenecks.
Audit-Ready Evidence
Detailed logs and artefacts provide evidence of testing activity — making compliance provable, not just claimable, for auditors and stakeholders.
AI testing with
specialist oversight.
Arcseer combines automated adversarial testing with oversight from experienced penetration testing specialists. Automation enables testing at scale, while specialist review ensures complex attack paths, contextual risk, and edge cases are properly understood.
Automated Testing
Continuous adversarial testing across your full attack surface — identifying exposure as your systems change.
Specialist Review
Experienced penetration testers validate complex attack paths, contextual risk, and edge cases that require human judgement.
Application Security Testing
Web, API & mobile attack surface coverage
Network Penetration Testing
Internal, external & segmentation review
Cloud Security Assessment
AWS, Azure & GCP posture & misconfiguration
Built for enterprise
security requirements.
Arcseer is designed with enterprise security requirements in mind — giving security and compliance teams the controls and visibility they need.
Explore Arcseer
in action.
See how Arcseer identifies and tests real security risk across modern applications and infrastructure.