Using the TrustZone® Trademark

Please use the above trademark in accordance with the Arm trademark use guidelines. In addition, please follow the Arm branding guidelines if you hold a valid trademark licence from Arm.



Approved nouns:

architecture extension
architecture security extension
processor security technology
processor technology

Use format:

Arm® TrustZone® [product name] and/or [approved noun]
e.g. Arm® TrustZone® technology

Always use the TrustZone trademark preceded by the Arm trademark in first use, i.e. Arm® TrustZone®. You do not have to use the Arm trademark in each subsequent use of the TrustZone trademark.


Arm and TrustZone are registered trademarks of Arm Limited (or its subsidiaries or affiliates) in the US and/or elsewhere.

Use examples for TrustZone trademark


Correct use

Incorrect use


Arm® TrustZone® technology

Arm® TrustZone technology
Arm® trustzone® technology

Arm® TrustZone® processor

“processor” is not an approved noun.


Arm® TrustZone® for Armv8-M

Arm® TrustZone® for v8-M

Arm® TrustZone®-M

Arm® TrustZone®M

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