Intrinsic ID delivers a cost-effective and scalable unclonable identity to secure IoT devices. Shipped into over 150 million devices, BroadKey & QuiddiKey, based on patented SRAM Physical Unclonable Function (PUF) technology, generate a “fingerprint” which is never stored. Monark, a butterfly PUF implementation, secures FPGAs (new and already field-deployed) with an unclonable identity.