// Adversarial Security

We break things before your adversaries do.

Security Arsenal delivers offensive security assessments, red team operations, and adversarial simulation for organisations that demand real-world validation of their defences.

Request an Assessment Our Services
1,300+
Engagements Delivered & Growing
26+
Years in Business
98%
Client Retention
100%
Coordinated Disclosure

Offensive Security Services

Each engagement is scoped to your environment and threat model. We don’t run automated scans and call it a pentest.

Network Penetration Testing

External and internal assessments targeting your perimeter, internal segmentation, and Active Directory environment.

Red Team Operations

Full-scope adversarial simulations conducted covertly to test detection, response, and containment capabilities across people, process, and technology.

Web Application Testing

OWASP-based assessments of web and API surfaces including authentication, authorisation, injection, and business logic flaws.

Social Engineering & Phishing

Targeted phishing campaigns, vishing assessments, and physical security tests designed to measure human-layer exposure.

Security Programme Reviews

Structured gap analysis against CIS Controls, NIST CSF, or ISO 27001; gap remediation roadmaps with prioritised findings.

Threat Intelligence Retainer

Ongoing access to curated threat intelligence feeds, dark-web monitoring for client assets, and quarterly briefings.

Structured. Repeatable. Documented.

Every engagement follows a rigorous methodology aligned to PTES and MITRE ATT&CK, ensuring consistent quality and meaningful, actionable deliverables.

  • Scoping & Rules of Engagement Defined boundaries, target surfaces, notification chains, and emergency contacts established before any activity begins.
  • Reconnaissance Open-source intelligence gathering, passive enumeration, and attack surface mapping without active probing.
  • Active Assessment Exploitation of identified weaknesses within agreed scope, lateral movement, privilege escalation, and objective pursuit.
  • Evidence Collection Timestamped artefact capture, chain-of-custody documentation, and session logging throughout the engagement.
  • Reporting Executive summary for leadership and technical appendix for engineering teams, with CVSS-scored findings and remediation guidance.
  • Remediation Verification Complimentary retest of critical and high findings within 90 days to confirm effective remediation.

Start a Conversation

Engagements are booked on a quarterly schedule. Contact us early to secure your slot. All initial enquiries are handled under NDA.

Secure Email engagements@securityarsenal.com
Location Washington D.C., USA — Remote worldwide
Clearance Personnel with active U.S. security clearances available

PGP Public Key

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