What should I do about these SIDs Identifiers

Dear Community,

I have 3 Security Identifiers as mentioned in the attached screenshots. We had done Third Party VAPT Testing & they said to delete those SIDs i.e. (security Identifiers). Can they become hidden? Or can they can be deleted? What about old service Accounts? Please suggest what should I do about these?

Please also tell me can the disabled accounts cause any harm?

Kindly take a look at below link. It contains all three pictures.

https://crescentpk-my.sharepoint.com/:f:/g/personal/seema_kanwal_crescent_com_pk/EtwdXMkJnXZAgnYduLeDMqsBL-Z2M6Kgoaz7TB8Qe-jeUQ?e=XGXIK2