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Welcome to Codebook, the cybersecurity newsletter that's pretty sure Ed Harris plays a robot on "Westworld."

Situational awareness: Sens. Claire McCaskill (D-Missouri) and James Lankford (R-Okla.) introduced a supply chain cybersecurity protection law Tuesday.

Tips? Reply to this email address.

I mean, wouldn't it be devastating if the guy whose persona is based on not being a robot is a robot?

Codebook will return on Thursday. It is not a robot.