Application Security Testing
in Tokyo
Application Security Testing engineered for the Tokyo threat landscape. Every finding is backed by proof-of-concept evidence.
Free Scoping CallTokyo Threat Intelligence
World's largest metropolitan economy. APPI data protection and financial industry cybersecurity guidelines mandate comprehensive security posture.
Technology Ecosystem
Global automotive/electronics R&D hub, major financial exchanges (TSE), advanced manufacturing IoT.
Automotive R&D intellectual property theft via APT campaigns
Financial exchange API high-frequency trading manipulation
Manufacturing ICS/SCADA firmware vulnerabilities
Healthcare system patient data exfiltration
Regional Regulations
Key Industries
Proof-Driven Methodology
Intelligence
Attack surface mapping & asset enumeration
Vulnerability Scanning
Penetration testing beyond automated scanners
Manual Verification
PoC validation for every finding
Remediation Support
Remediation code + free retest
Frequently Asked Questions
What methodologies do you use?
We base our testing on OWASP Testing Guide, PTES, NIST SP 800-115, and OSSTMM frameworks.
Can we review previous work examples?
Due to NDA constraints we cannot share client names, but we can provide redacted sector-specific case studies and proof summaries.
Do you test remotely or on-site?
Most tests are conducted remotely via VPN. For internal network and physical security tests, we deploy on-site teams.
Why Eresus Security?
Proof-Driven Reporting
Every finding is validated with a real exploit. No scanner noise — only proven risks.
Offensive Security Expertise
Specialized team in AI security, API pentesting, Red Team operations, and cloud security review.
Retest Support
Fixes are revalidated within the agreed engagement scope. Remediation guidance and developer-friendly notes are included.
Evidence-Ready Deliverables
Report format designed to support internal review, remediation tracking, and evidence-oriented workflows.
Related Service Areas
Validate Your Security Posture
Don't rely on scanner outputs. We execute the same techniques real attackers use — in a controlled environment, for you.
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