How do I know if a website or app is using my personal information for targeted advertising without my consent?

1. Research the company's privacy policy and confirm if they state they use your personal information for targeted advertising
2. Check your account settings and make sure you haven't allowed the website or app to access your personal information
3. Look for notifications that they are collecting and utilizing your personal information for targeted advertising
4. Monitor the types of ads you're being shown and see if they're directly related to your previous search history or online activity