What you need to know
Section 524B of the Federal Food, Drug, and Cosmetic Act is the law that makes cybersecurity a submission requirement. It applies to any "cyber device": a device that includes software, can connect to the internet, and could be vulnerable to cybersecurity threats. Manufacturers of these devices must include a plan to monitor and address postmarket vulnerabilities, show secure design and maintenance processes, provide updates and patches, and submit a software bill of materials (SBOM).
The law sets the requirement. The FDA's February 3, 2026 premarket cybersecurity guidance explains what the agency expects to see as evidence. The articles below cover whether 524B applies to your device, what each subsection asks for, and how teams document it in 510(k), De Novo, and PMA submissions.