What is the version of the following sentence with correct punctuation?

If you see a message from someone you know that doesnt seem like them their account may have been compromised by a cyber criminal who is trying to get money or information from you so be careful how you respond
If you see a message from someone you know that doesn't seem like them, their account may have been compromised by a cyber criminal who is trying to get money or information from you so be careful how you respond.