Now and then a named cybersecurity threat enters public conversation, making headlines with a colorful name like WannaCry, Bad Rabbit, or RobbinHood. (You have to admire hackers’ creativity when it comes to naming these things.) A new name has popped up, and the threat seems to affect many people: BlueKeep. You may be wondering what it is, why it’s a big deal, if it affects you, and what you should do about it. We have answers.