People use ECC to protect against misbehavior that is random both spatially and temporally. That is, it's not meant to protect against the same transistors prod

People use ECC to protect against misbehavior that is random both spatially and temporally. That is, it's not meant to protect against the same transistors producing incorrect outputs consistently/systematically. Put another way, we felt we had a rather safe guarantee that consistent/systematic misbehavior of the same portion of hardware would be either testable (like with memory diagnostics) or nonexistent. This paper is tearing apart that assumption.