Delete comment from: Ken Shirriff's blog
What would prevent an already fielded chip from being reprogrammed by blowing additional fuses? Or were these only used for prototyping? I think i read somewhere that some secure crypto modules used them to store keys, which means that being able to force additional bits to zero might have security implications.
Apr 12, 2021, 9:30:28 PM
Posted to Looking inside a 1970s PROM chip that stores data in microscopic fuses