Hi,
Thank you for posting your query on Symantec community.
1) Can we generate a report for USB allowed user, if yes how?
--> No, there isn't any user specific report.
2) AV Scan history ( with SEP can we go back to scan history. We can just find when the last scan has occured)
--> Scan log this will make this history available of the machines based on your log retention
3) Can we do blocking for mobile storage when connected to USB? if yes how
--> Yes, we can block mobile storage when connected to USB. You should either block entire USB access or specific device ID's can be blocked.
4) how accurate is SEP for logs recived as AV can't clean/ quarantine , are there any false positive that it will say that it can't clean/quarantine files?
--> There shouldn't be any such issue & it's not reported by any customer as well.