Cybersecurity Consulting Firm – Cyber Castellum
Businesses know the risk that hackers pose to their systems, data, customers, and ultimately, their bottom line. Businesses make considerable investments and implement sophisticated security controls to counter these risks. However, unless these security controls are tested for potential weaknesses, there are no assurances that they are working as intended.
Cyber Castellum is a cybersecurity consulting firm that specializes in identifying the security vulnerabilities in an organizations’ technology landscape, vulnerabilities that hackers often exploit. We provide a range of security testing services, as described below.
Automated scanning of your IT infrastructure to detect known vulnerabilities, followed by expert analysis and prioritized reporting.
A manual process that involves finding vulnerabilities through simulating steps an actual attacker would take in internal, external, and cloud environments.
Simulated cyberattacks to test your organization's defenses and identify critical security gaps.
Identifying design, coding, and implementation flaws that could lead to compromise and impact the confidentiality, integrity, and availability of an application
Evaluates mobile applications, supporting APIs, and backend infrastructure to uncover security weaknesses and implementation flaws.
Evaluates APIs for authentication, authorization, data exposure, and other vulnerabilities to ensure secure integration and communication.
A secure code review of the source code using automated tools (SAST) backed with manual review that automated tools are not designed to identify.
Identifies vulnerabilities in a wireless network, targeting the access points and the strength of the wireless protocols and the associated encryptions.
Evaluates cloud environments for misconfigurations, access control issues, and compliance gaps to ensure secure, resilient infrastructure.
Evaluates how AI models react to intentionally misleading or malicious inputs to uncover vulnerabilities and improve system robustness.
Assesses laptops, desktops, and mobile devices for vulnerabilities, misconfigurations, and outdated software that could be exploited.
Assesses virtual desktops for misconfigurations, access controls, and other vulnerabilities that may allow exfiltration of sensitive data outside of the VDI.
Simulates phishing, impersonation, and other social engineering attacks to assess employee awareness and identify human vulnerabilities.
Evaluates physical devices for vulnerabilities by examining their components, interfaces, and protections against tampering or unauthorized access.
Identifies gaps in your policies, and controls against applicable requirements. Provide clear recommendations to strengthen security and maintain compliance.
Five consecutive years of offensive security validation and CMS regulatory assurance for a Medicare quoting platform — delivered as a single, coordinated engagement.
Insurica operates a Medicare quoting platform subject to rigorous oversight by the Centers for Medicare & Medicaid Services (CMS). To stay compliant, the platform requires a System Security Plan (SSP) mapped to NIST SP 800‑53 (Rev. 4) controls, backed by independent annual third‑party validation.
Cyber Castellum provided coordinated layers of assurance, combining offensive depth with compliance precision.
Achieved and retained continuous CMS certification for five consecutive years without operational interruption.
Maintained an audit‑ready stance with complete documentary evidence for strict regulatory reviews.
Validated real‑world defensive resilience through simulated cyber attacks alongside compliance checks.
Streamlined annual assessment timelines through deep institutional familiarity with Insurica's architecture.
* This case study is published with Insurica's knowledge as a named reference. Vulnerability data and specific control configurations remain confidential.
Cyber Castellum is cybersecurity consulting firm specializing in performing cybersecurity assessments and performing other cybersecurity related services. We specialize in finding vulnerabilities in organization’s technology landscape that hackers often exploit to compromise information systems and sensitive data.
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