A shadow profile is like having a secret diary that someone else is writing about you, even though you don't know they're doing it. It's like a spy keeping tabs on you without telling you.
When you use social media or other online sites, they gather information about you. Sometimes they gather information you don't even know about or that isn't meant to be public. This might include things like where you live, what you like, and who your friends are.
All of this information is put into what's called a shadow profile. It's like having an invisible version of yourself that companies use to show you things that they think you'll like. They might even show you things that you didn't know you needed or wanted.
It's important to remember that although companies have this information, they're not supposed to share it with others or use it against you. It's like having a secret diary that only you and the company know about. However, it's always a good idea to be careful about what you share online and to make sure you're comfortable with the information that's being collected about you.