I have reviewed this document as part of the SEC area 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 editors and WG chairs should treat these comments just like any other last-call comments Section 6, paragraph 4 highlights the customer's responsibility for end-to-end security, even when utilizing secure network slices as a service provided by their service providers. This raises several questions: - Does the document imply that customers should not trust the secure network slices offered by service providers? - It might be beneficial for the document to specify criteria or guidelines that customers can use to evaluate the security and integrity of secure network slices as a service. Providing such criteria would help customers make informed decisions and ensure they meet their security requirements. Thank you, Linda Dunbar