TIERS Cyber Defense
Penetration Testing
Controlled, authorized security testing designed to determine whether vulnerabilities can be combined into realistic attack paths and meaningful business impact.
Controlled adversarial testing
Test whether weaknesses can become real attack paths
Penetration testing goes beyond automated scanning by safely validating how an authorized attacker could move from an exposed weakness to meaningful business impact.
External Penetration Testing
Internet-facing services, virtual private networks (VPNs), remote access, authentication controls, exposed infrastructure, and public attack surface.
Internal Penetration Testing
Active Directory, Windows environments, privilege escalation, credential exposure, lateral movement, and segmentation.
Web Application Testing
Authentication, authorization, session handling, APIs, input validation, business logic, and common web attack classes.
Wireless Testing
Corporate and guest wireless security, authentication, segmentation, and unauthorized-access exposure.
Identity Attack-Path Testing
Privileged roles, credential pathways, legacy authentication, administrative separation, and identity control weaknesses.
Retesting & Validation
Targeted follow-up testing to document whether material findings have been successfully remediated.
Rules of engagement
Authorization is part of the technical process
Before testing begins, TIERS Group documents approved targets, ownership, prohibited actions, maintenance windows, test accounts, third-party restrictions, emergency contacts, data-handling expectations, and stop conditions.
Typical reporting
- Attack narrative and validated paths
- Evidence-backed technical findings
- Risk and business impact
- Remediation guidance
- Executive findings briefing
- Optional retest report
Testing guidance
Structured methods, not uncontrolled experimentation
The exact methodology depends on scope and environment. Technical testing can be informed by National Institute of Standards and Technology (NIST) Special Publication 800-115, Open Worldwide Application Security Project (OWASP) testing guidance, Center for Internet Security (CIS) configuration baselines, and other appropriate industry practices.
Start with a safe, high-level inquiry
Request a Cyber Defense consultation
Tell us what you are trying to protect or validate. Do not submit passwords, credentials, security keys, protected evidence, exploit details, or sensitive client data through this form.