Email messages like these are trying to get you excited and make you think you are in jeopardy of losing your pictures. Take a deep breath, and then delete such messages. Note there is no person's name shown after the word "To". That's a big giveaway that the message is being sent to LOTS of people, in addition to yourself.
Email message heading
"Your Cloud Cloud Storage.." What's that?? Also note misspellings of exceeded and security!
