Hello Anthony24, Of course there are several signs that can help you notice that your twitter account has been hacked, for example, If you have noticed unexpected Tweets by your account. Seen unintended Direct Messages sent from your account. Observed other account behaviors you didn’t make or approve (like following, unfollowing, or blocking) Received a notification from us stating that your account may be compromised. Any of these events, shows that your twitter account has been hacked and you must do something about it as quickly as possible.