Quasi-identifier

A quasi-identifier is like a secret code that helps us identify who someone is without really knowing their name. Imagine you are playing a guessing game with your friends, and they tell you a few things about a person: they are 5 years old, they have brown hair, and they live in a blue house on your street. You might not know this person's name, but you could figure out who they are based on these clues. The same goes for a quasi-identifier, which might include things like someone's age, gender, zip code, or even the type of car they drive. These details might seem small, but when combined, they can help companies or researchers figure out who someone is, even if they don't know their actual name. That's why it's important to protect your personal information and be careful about what you share online!