Our Services
Cybersecurity Compliance Assessments & Audit Consulting
We help organizations prepare for, navigate, and succeed in regulatory and third-party compliance audits without the guesswork.
Cybersecurity Consulting Firm – Cyber Castellum
We help organizations prepare for, navigate, and succeed in regulatory and third-party compliance audits without the guesswork.
In today’s regulatory landscape, audits are not optional—they're expected. Whether mandated by your client, industry, or a government contract, failing to meet compliance requirements can halt business, trigger penalties, or damage reputation.
At Cyber Castellum, we offer expert-led compliance assessments that benchmark your existing cybersecurity controls against recognized standards such as NIST 800-53, CMMC, HIPAA, PCI-DSS, ISO 27001, and SOC 2. We don’t just run through a checklist—we deliver tailored insights, prioritize your gaps, and help you prepare to pass any audit with confidence.
Third-party audits can be stressful—but not if you’re prepared. Our assessment approach is built for transparency, actionability, and audit success.
We evaluate your environment against standards like NIST 800-53, ISO 27001, HIPAA, PCI-DSS, CMMC, SOC 2, and more.
We simulate third-party audit conditions—identifying red flags, documentation issues, and non-conformities before the real audit begins.
We assess the accuracy, relevance, and implementation of your cybersecurity policies, procedures, and governance models.
We identify vulnerabilities across your people, processes, and technology—not just firewalls and code.
Receive a prioritized, step-by-step action plan to help you close the gaps and defend your audit results.
Get clean, professional reports and advisory support to help communicate results to auditors, clients, and leadership.
Younus and his team at Cyber Castellum have a thorough knowledge of CMS requirements and cyber security. Cyber Castellum is our preferred provider when it comes to 3rd party external audits, web application security assessments, as well as internal and external penetration testing. Our company offers Direct Enrollment through the healthcare.gov marketplace. To be a part of this elite group, we follow strict CMS requirements to ensure our web application is safe and secure. In a world where cyber security is of utmost concern, Cyber Castellum has proven from the start that they have what it takes to ensure we remain CMS-compliant year-to-year.
Project Manager Insurica
I have been a security testing consultant for twenty years and I have l partnered with Cyber Castellum on multiple security testing engagements. They are knowledgeable, responsive, and they never fail to exceed expectations. Their thorough approach and deep expertise make them a trusted partner I can rely on for the most complex assessments. I highly recommend their services to anyone seeking top-tier cybersecurity testing.
Principal Consultant supporting New York State Agencies
Cyber Castellum has consistently delivered exceptional offensive security, penetration testing, and vulnerability scanning services for Cybertlabs and our government clients. Their ability to identify and communicate risks and vulnerabilities has exceeded our customers’ expectations, providing both depth and clarity. We rely on them not only for their technical excellence, but also for their dependability, integrity, and outstanding customer service. They are a trusted partner in pursuing and delivering our cybersecurity portfolio of work.
CEO Cybert Labs
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