Can you see who has viewed your iCloud info?

Hello Krista_Agosto,

Thank you for using Apple Support Communities! I understand that you need help with your iCloud. I am happy to help the best I can.

Check out the following support article, which provides steps to take: Check your Apple ID device list to see where you're signed in - Apple Support

Cheers!

You can’t see the date. And only people who know your Apple ID can view your iCloud information. You should never share your Apple ID login information with anyone. Never. No one.

See the 4th item—>https://appleid.apple.com/faq/#!&page=faq