Yeah, I had this happen last night, but didn't see the emails until this morning. I opened imessage and found around 60 or more texts that were being sent out from my phone with Chinese characters. I deleted all the messages and changed my id password. A few hours later I get another message saying I've been locked out of my account. I over-road the account and changed the password again, this time making it stronger. I'm really hoping everything is safe on my phone.. iMessage seems to be working fine for me. I was kind of wondering if it could be because I shared my computer screen yesterday with tech services from my school so they could fix certain issues, but surely not, right?
Apple needs to do something to fix this!