Bitcoin Protocol and "Low Risk" bugs
Wed, 26 Feb 2014

Low risk security issues can kill you. It isn’t that they come out and stab you in the heart, it is more a soft death of many cuts. You may not even know you are bleeding. Mosquito saliva has an anesthetic in it, you won’t even know it is there sucking your blood right away. The Bitcoin Protocol has a potentially lethal vulnerability, which by now everyone is familiar with, known as “Transaction Malleability”. The focus here is not how transaction malleability killed Mt. Gox (that has been discussed at length elsewhere), but how careful defenders must be ...