Okay, so you know how there are some things that are only appropriate for grown-ups to talk about, like drinking alcohol or driving a car? Well, there is also something called "paedophilia," which is when a grown-up has a strong attraction to kids. This is not okay and can be very dangerous for kids.
Now, some bad people make a group called the "paedophile information exchange" where they talk with other people who also like kids in a bad way. They share information about how to find and approach kids, and try to convince each other that what they're doing is okay. This group is really, really bad and can hurt a lot of kids.
The police and good people are working hard to stop this group and keep kids safe. Remember, it's never okay for a grown-up to touch you or make you feel uncomfortable in that way, and it's important to tell a trusted adult if something like that happens.