Spam and phishing are the top annoyances for email these days. Chances are that Yahoo really isn't going to contact you personally. So if you DO get what appears to be an email from them, hover your cursor over the link they send. If its not similiar to [url]www.yahoo.com[/url], chances are that its a phish. If you are not sure then go to yahoo's site on a separate browser and email them the link you have gotten or forward the email to [email]spoof@yahoo.com[/email] and see what they make of it.

Btw people, if you get a forwarded message from your friends in messenger saying that Yahoo is going to close your account if they don't recieve this message, DON'T PASS IT ON. People get bored these days and make up these stupid stories about yahoo closing accounts. This will never happen along with Yahoo going to charge everyone money to use Messenger. Message your friend and tell them to stop being so stupidly gullable.