Data Defense Solutions is a Cybersecurity advisory firm based in Alexandria, VA. Our goal is to be more than just a vendor for our customers, but rather become an extension of their security team. We partner with our customers to become their go to trusted advisor to help reduce and manage their cyber risk by offering the highest quality, customized Cybersecurity services available.


Paul Culligan is the CEO of Data Defense Solutions which was started at the request of a former customer who needed help managing their security program. Paul has 20 years of experience providing strategic Cyber advisory services and solutions for a diverse set of industries and organizations including building IT Security and Vulnerability Management Programs, developing IT Security Maturity Roadmaps, and guiding customer’s through numerous compliance requirements including SOX, NIST 800-53, and PCI standards. He holds a Bachelor of Science in Management Information Systems from Canisius College in Buffalo, NY and an MBA from Penn State University. Security certifications include: CISSP, CISM and CISA designations.