My question regards a "non-secure form warning" that appears when I use my email, which I access through Yahoo. I have an iMac, OS X version 10.9.2. I have recently installed updates of Safari 7.0.3 and a security update 2014-002.

The warning message appears when I use email. There is a safari compass symbol in the corner, and the message reads: “This form will be sent in a way that is not secure. Are you sure you want to send it?” My choices are Cancel or Send. Why is this appearing and what should I do?