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DMZ CODEX · HAJIN EXCLUSION ZONE UPDATED 27 OCT 2026

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Codex / How DMZ works / RICOCHET Anti-Cheat (PC requirements) Updated 19 Oct 2026
Mechanic

RICOCHET Anti-Cheat (PC requirements)

Also known as TPM 2.0, Secure Boot, Anti-cheat

Modern Warfare 4, DMZ included, needs TPM 2.0 and Secure Boot turned on to play on PC. RICOCHET Anti-Cheat combines them with server-side detection.

How it works

  • Modern Warfare 4, DMZ included, needs TPM 2.0 and Secure Boot turned on to run on PC.
  • RICOCHET Anti-Cheat combines them with server-side detection.

What to do

  1. 01Check both before launch. Activision explains how at support.activision.com/tpm.
  2. 02If either one is off, turn it on in your PC's BIOS.
  3. 03Hit a bug? Check Infinity Ward's Modern Warfare 4 Trello board first. It has its own DMZ Known Issues list.

Key numbers

TPM 2.0
Required on PC
Secure Boot
Required on PC

More how dmz works

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