ENO Level 2
Similar to the ENO Level 1, this is a rogue algorithm, program, or process that has access to a secure storage device that is used to protect vulnerable parts of its programming. This usually takes the form of a compromised machine with local storage, as in the case of the Yellowknife Outage, where the ENO Level 2 was found to be operating out of an ATM.

A physical data location, especially one that is protected from outside intrusion, makes this ENO an order of magnitude harder to both detect and to destroy than a Level 1. Typically the physical storage device must be destroyed or isolated to guarantee this.

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