> OK, tried it. It doesn't work
Well there's something strange going on then, because (I checked this before I posted and again just now) I CAN log into my amazon account (both .com and .co.uk) using BOTH my 14-letter password and just the first 8 characters of it. Only 7 characters fails.
I've found that if add incorrect characters after the 8th, it fails. But If I put the first 8, 9 or 10 in they all work.
I can add incorrect characters after the full one and it works.
Does this happen for anyone else but me, then?
The only way I can think that this would work is if they stored my password compared the start of it with the entered string, truncating the longer, or if they stored a hash for every length from 8 to 14. Both of which sound mad, but it's honestly working this way for me.