If there's a shortage of anything, it's understanding of how QR codes work.

Q. I work in a training facility where our IT department insists on using difficult passwords to protect our Wi-Fi routers, and as a result, our many guests frequently have difficulty connecting. Any ...

Add Yahoo as a preferred source to see more of our stories on Google. QR codes are visual patterns that store data smartphones can read. AP Photo/Vincent Yu Among the many changes brought about by the ...

I miss the good old days when people left their Internet connections insecure and I didn’t have to spend money on the Internet… oh wait, I’ve said too much. Kidding (mostly)! Anyhow, in today’s ...