Physical security isn't glamorous but it matters. These are the hardware picks that give the most protection per dollar — tested, not just listed.
The single best security upgrade for any account that supports it. Eliminates phishing-based MFA bypass entirely.
Best all-around pick for most people. USB-C works with modern laptops, NFC covers iPhone and Android without adapters. Supports FIDO2, WebAuthn, TOTP, and PIV. Buy two.
View on Amazon ↗The pick for iPhone users who want a physical key without an adapter. One end is USB-C for your laptop, the other is Lightning for your iPhone. Same full protocol support as the 5C NFC — FIDO2, WebAuthn, TOTP, PIV. If you're on iPhone and don't want to rely on NFC, this is your key.
View on Amazon ↗The USB-A version — same capability as the 5C NFC, better for older laptops or if you use a USB-A hub. Also good as a cheap backup key to keep off-site.
View on Amazon ↗Work from cafes, airports, or open offices without exposing client data to shoulder surfers. Underrated, cheap, effective.
Magnetic attachment means no adhesive residue and easy on/off — useful if you alternate between desk and travel. Good viewing angle, doesn't noticeably dim the screen. Available for most laptop sizes. Get the right model for your exact screen dimensions.
Shop 3M Privacy Filters ↗Simple, cheap, and the one physical control that's always reliable. Ours stays on unless we're actively on a call.
Thin enough to close your laptop lid over. Adhesive doesn't damage the screen. At 50 for $5.99 you'll want one on every device — laptops, monitors, desktop webcams. This is a 5-minute zero-regret purchase.
Shop Webcam Covers ↗A dedicated firewall appliance is the single best upgrade for a home office or small business network. Purpose-built hardware running a real firewall OS beats any consumer router on the market.
I have been running this continuously for 2 years, 24×7 as my OPNsense office router and it always stays up — modernizing and securing your home office. AES-NI hardware acceleration means real crypto performance, and the fanless design runs silently forever. Flash OPNsense or pfSense and you have enterprise-grade firewall capabilities for a one-time hardware cost.
View on Amazon ↗Public USB charging ports can read your device while it charges — a technique called juice jacking. A data blocker passes power only, with the data pins physically removed. $10 insurance for airport and hotel charging.
The category standard — PortaPow physically removes the data pins so nothing can pass except power. Works with any USB-A port: airports, hotels, rental cars, conference rooms. Grab a 2-pack and keep one in your laptop bag permanently. This is a $10 decision you make once.
View on Amazon ↗