Be careful in providing information especially in the net. My experience three weeks ago, I received an email from a site which to me seems to be from YAHOO. The instruction was to validate my account to prove that I am the real owner.

I did validate and instantly, they accessed my email account. Deleted my incoming and outgoing mails from 2 years back.

Now, they are even trying to access my phone.

If you encounter similar problem, change your password immediately.