Netflix's Zero Day introduces a chilling cyber weapon called Proteus, developed by the NSA. During the course of the series, Mullen's investigation into the cyberattack unearths the mysterious weapon.

The Netflix film Zero Day has surprised viewers with ... and they developed Zero Day. In the series, Proteus is a National Security Agency-developed weapon that can cause traumatic brain injury ...

A traitor on board the Proteus adds tension when acts of sabotage ... Asimov was a little frustrated by some of the film's science. While he honored it in the novel, he went on to write a sequel ...