Improper Handling of Hardware Behavior in Exceptionally Cold Environments

Hardware behavior can change dramatically in exceptionally cold environments. For instance, volatile memory like DRAM or SRAM may not clear its previous data when power is cycled at low temperatures, because the cold slows charge leakage. If a security mechanism, such as a Physical Unclonable Function (PUF) that relies on this memory for a unique, random seed, assumes a cleared or unbiased state on startup, it could instead be using predictable, old data. This breaks the fundamental security guarantee. This flaw is introduced when system designers do not account for the temperature sensitivity of their chosen hardware components. It's distinct from a 'Cold Boot Attack,' where an attacker physically removes and reads cooled memory. Here, the weakness is an internal design oversight: the device itself fails to correctly implement its security primitives—like reliable key generation or secure boot—when subjected to cold stress, because it incorrectly handles the persistent state of temperature-sensitive components.