About me
John Rostern leads a team of professionals who assist clients in effectively managing cyber risk, securing their information assets and achieving compliance with legal and regulatory standards.
John brings over 40 years of professional experience to the Marcum Technology team. His experience includes working successfully with clients across all industry sectors including cloud service providers, social media, entertainment, financial services, healthcare, manufacturing, aviation/aerospace defense, and technology.
John and his team work closely with clients to deliver a wide range of services to assist them in effectively managing cyber risk. Services provided by the team include Governance Risk and Controls (GRC), Digital Forensics, Managed Security Services through the Security Operation Center (SOC), Security Engineering and Technical Services such as penetration testing, attack surface mapping, threat hunting and vulnerability scanning.
