Blowing Fuses: Locking Down a Production Device

One-time-programmable fuses turn security features on permanently. Here is what they protect and why shipping with them unblown is a common, costly mistake.

Measured Boot vs Secure Boot

Secure boot and measured boot sound similar but do different jobs. Here is how they differ, how each works, and when you want both.

Closing Debug Ports without Breaking Field Repair

Disabling debug ports hardens a device but can block legitimate repair. Here is how to lock down without painting yourself into a corner.

Secure Boot on STM32: What Actually Protects You

STM32 chips offer real secure boot features, but only if you configure them. Here is what protects you, what is off by default, and how to verify it.