TPM

"technological protection measure"

(Sometimes referred to as access control enforcement facility.)

Physical or digital(TCB) measure to protect against unintentional (trans)actions.

In the (narrow) context of copyright legislation these transaction are copying or attending/accessing.

In this context non-technological things like encryption codes and passwords might be included as in this austraian draft.

(For clarity "encryption software" should be replaced by "encryption code" or "encryption password" to point out that's the secret part is the measure, not the public accessiable software [be it binary or clear text]. Note the exception for private copies for the purpose of keeping evidence "online privacy".)