@Edent I recall this being a minor plot point in a hacking fiction story I read somewhere a long time ago (unfortunately, I can't recall where I read it; it was so long ago that the hash was probably still MD5). IIRC, the protagonist fell for that trick (the correct and fake hash had equal start and end, only differing in the middle bytes) and got hacked. Since I read that story, I've always compared not only the beginning and the end of hashes, but also a sequence somewhere in the middle.