Reviewer: Russ Housley Review result: Has Issues I reviewed this document as part of the Security Directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written primarily for the benefit of the Security Area Directors. Document authors, document editors, and WG chairs should treat these comments just like any other IETF Last Call comments. Document: draft-ietf-secevent-token-09 Reviewer: Russ Housley Review Date: 2018-04-20 IETF LC End Date: unknown IESG Telechat date: 2018-05-10 Summary: Has Issues Major Concerns I do not understand the first paragraph of Section 3. I made this comment on version -07, and some words were added, but I still do not understand this paragraph. I think you are trying to impose some rules on future specifications that use SET to define events. Let me ask a couple of questions that may help. I understand that a profiling specification MUST specify the syntax and semantics for a collection of security event tokens, including the claims and payloads that are expected. What MUST a profiling specification include? What MUST a profiling specification NOT include?