Faraday & RFID

Physical OPSEC to reduce RF leakage and tracking risk.

What to look for

• Verified attenuation specs across cellular, Wi‑Fi, BT, NFC bands.
• Durable materials and closures; ease of use in the field.

OPSEC tips

• Test with your own devices before relying on it.
• Consider side‑channels (power, audio, sensors) even when RF is blocked.

Mistakes

• Assuming full isolation without testing.
• Leaving devices powered inside bags (wake on motion).

Related: Cold Wallets, Seed Storage