How Joe Marshall helps defend everything from electrical grids to grain co-ops across multiple continents

Joe Marshall was a security practitioner before he even knew it.

Marshall started his career in information technology as a systems administrator. On the surface, he jokes that he was a “white-collar plumber” — fixing IT issues as they arose, handing out new credentials and asking users if they had tried turning something off and back on again.

But while he served in these roles across multiple companies for about 10 years, he became familiar with cybersecurity almost by accident. …

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