Tips to help you develop secure software or hardware products
NIST Secure Software Development Framework - The Secure Software Development Framework (SSDF) is a set of fundamental, sound, and secure software development practices based on established secure software development practice documents from organizations such as BSA, OWASP, and SAFECode.
National Institute of Standards and Technology
Careful Connections: Building Security in the Internet of Things - advice for businesses about building security into products connected to the Internet of Things, including proper authentication, reasonable security measures, and carefully considered default settings
Federal Trade Commission