I received an email today purporting to be from the Chelsea Building Society with the subject line "We're making some important changes". It is very professional and at first I thought it was genuine as it correctly quoted part of my postcode.
It was addressed to my yahoo account and originated in Germany. None of the links in the email are listed on the Chelsea Building Society website. I've forwarded the email to their security department.
Fortunately I did not click any of the links!