So, let's talk about watching TV. You know how you have a TV in your house and you can watch lots of different channels on it? Well, some people like to watch channels that they don't pay for. That's not fair or legal.
But, some people figured out a way to share their TV channels with other people who want to watch them, without breaking any rules. This way of sharing is called "card sharing".
Here's how it works:
TV channels are usually sent to your house by a small card called a smart card, which you put into a box that sits next to your TV (this box is typically called a satellite receiver or a set-top box). The smart card is like a tiny computer that tells the box which channels you are allowed to watch based on the subscription you pay for.
Now, people who do card sharing use special computers that can talk to the smart cards in a TV box, without actually having the box. They can take the information from the smart card and send it out over the internet to other people who want to watch those channels.
It's like sharing your toys with your friends - except with TV channels instead. But, it's important to remember that not all sharing is good. Sometimes it's okay, like sharing your toys with your friends, but sometimes it can be bad, like sharing TV channels you didn't pay for. So, it's always important to ask your parents first!