The Picks
I recommend these in my AI Security audits because they defend against attack classes that pure-software controls can't.
YubiKey 5 NFC
Hardware-bound second factor. FIDO2 / WebAuthn, NFC for phone + USB-A for laptop. If you still rely on TOTP codes for admin access to your AI pipelines, you're one phishing email away from a breach. Buy two — keep one in a safe.
View on Amazon →Webcam Privacy Cover (3-pack)
Sliding cover for laptop, monitor, and tablet cameras. Cheap, effective, and one of the easiest physical controls to roll out to a remote team. I keep one on every screen in the house.
View on Amazon →USB Data Blocker (charge-only)
Wired pass-through that physically disconnects the data pins — only power flows. Mandatory for any "free charging station" (airports, conferences, client offices). Also great when plugging in a found USB drive; only power, no auto-mount.
View on Amazon →How This Fits an AI Security Stack
- YubiKey → admin access. Closes the #1 way AI infra gets owned: phishing → credential theft → pivot to model repo. Hardware-bound means a stolen password alone is useless.
- Webcam cover → PII capture defense. Less about "spy paranoia" and more about compliance: EU AI Act and most privacy laws treat remote-camera capture as a special category. A cover is the cleanest technical control.
- USB data blocker → juice-jacking defense. Neutralizes the physical-channel attacks your software stack can't see. Mandatory if your team travels with hardware that touches customer data.
🛠️ Test the software layer too
Hardware defends the human end. For the model end, run the free prompt-test — it surfaces injection & data-exfil patterns that no YubiKey can stop.
Try the free Prompt Test →