Summary: The last time I checked my spam folder, I noticed a few messages included an unsubscribe link. Well that’s nice, I thought. Maybe spammers realize that some people will never respond, so they want to trim their lists for efficiency. I clicked “unsubscribe.” That was a mistake. While “legit companies” honor unsubscribe requests, says the McAfee Labs blog, “shady” ones just use the unsubscribe buttons to confirm your address and send you more spam.
