Alphabet's (GOOG, GOOGL) Google is expanding the availability of reCAPTCHA, and the verification technology will now be able to, for the first time, protect payments. Jess Leroy, Google senior ...

All: In a further effort to deter spam, Roanoke.com has added a "captcha" code bar for readers to type in before they enter a comment. We hope these human-readable images will thwart the loathsome ...

For those who are confused about this new feature in the comment section on our blogs: We have installed what is called a "captcha code." In order to make a comment, you must simply type in the ...