At the rate of how the world is turning out to be filthier than the trash, I am not surprised to hear of different kinds of selfishness happening the world-over! Varying kinds of crime happens here and there. And the NET is not an exemption.
As it is common nowadays to do online banking, it is expected that those vile people will also do everything they can to get information that can make them breach the bank's security, or YOUR SECURITY. How do they do that? They send you FAKE mails. Pretending that it comes from your bank (or other important accounts) asking for information, and as you provide them, they then go for the kill...and leave you with nothing!!!
SO BE CAREFUL!!! If there is a message that asks for information, call your bank. If you notice yahoo now have devised a way to spare us from phishers, the SIGN IN SEAL. Use it. For other accounts, they don't have it so just be doubly careful.
Truly the world is different. Be more on a defense now.