olemus
kahe poole suhtlust vahendav olem, kelle/mille usaldamise tõttu usaldavad pooled teineteist või sooritavad mingeid omavahelisi toiminguid

ISO/IEC 9798, 10181, 11770, 13888, 14533, 18014, 18033, 20009, TR 29149:
muude olemite usaldatav turvaorgan või ta agent turvalisusega seotud toimingutes
= security authority or its agent, trusted by other entities with respect to security related activities

ISO/IEC 13888 kontekstis usaldavad teda, salgamatust taotledes, lähetaja, saaja ja/või väljastusorgan, ning mõni muu pool, näiteks arbiter
= In the context of the ISO/IEC 13888 series, a trusted third party is trusted by the sender, the recipient, and/or the delivery authority for the purposes of non-repudiation, and by another party such as an adjudicator.

ülevaateid
https://en.wikipedia.org/wiki/Trusted_third_party
https://www.ijert.org/research/trusted-third-party-authentication-in-cloud-computing-IJERTV2IS110122.pdf
https://www.lexology.com/library/detail.aspx?g=6b4bfcda-2bb7-4e21-ba62-772592c0c212
https://www.gecurrent.com/sites/default/files/documents/Current-Third-Party-Security-Requirements.pdf

standardid
https://www.iso.org/standard/66760.html

vt ka
- kolmas pool