A zero-trust architecture enhances smart grid cybersecurity by eliminating the traditional concept of a trusted network perimeter and requiring strict verification for every user and device attempting to access resources within the grid. In a traditional network, devices and users inside the network perimeter are often implicitly trusted, while those outside are not. This "trust but verify" approach is vulnerable to attacks from insiders or from attackers who have successfully breached the perimeter. Zero trust operates on the principle of "never trust, always verify." This means that every user, device, and appli....
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