Security clearance appeals cases continue to deliver unforgettable lessons—and this one might top them all. A Department of Energy employee recently lost his security clearance after investigators discovered 187,000 pornographic images stored on his government-issued computer.

According to the appeal, the individual claimed the files were accidentally transferred from his phone to his work device due to lack of personal storage. Among the massive volume of images, investigators also found that the employee had allegedly used the material to create AI-generated “robot porn.”

The case quickly spiraled beyond technical excuses and into territory that raised serious concerns about judgment, digital hygiene, and misuse of workplace systems. The employee argued that the Department of Energy violated his privacy and likened the inquiry to the “Spanish Inquisition”—but those claims didn’t hold up.

The bottom line? What you do on a workplace device is never private. Whether you’re drafting emails or transferring files, your digital activity can be monitored, stored, and reviewed. And when it comes to maintaining a security clearance, poor decisions with technology—even outside of classified systems—can end your career.

For cleared professionals, the lesson is simple:
🔹 Don’t mix personal data with government systems.
🔹 Assume all work devices are monitored.
🔹 Protect your clearance by protecting your judgment.

Digital behavior matters as much as digital security—because in the cleared world, one careless click can cost you your clearance.

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Lindy Kyzer is the director of content at ClearanceJobs.com. Have a conference, tip, or story idea to share? Email lindy.kyzer@clearancejobs.com. Interested in writing for ClearanceJobs.com? Learn more here.. @LindyKyzer