Phishing and Credential TheftSome sophisticated fraudulent tools claim they need your Facebook login credentials to "authenticate the request" or "access the graph API." Entering your email and password directly hands your account over to hackers, leading to immediate identity theft and account lockouts.
Here is a detailed, honest article on the topic, focused on explaining why these tools don’t work, the risks they pose, and what you can legally do instead. facebook private profile picture viewer online 2021
A look into user privacy andthird-party applications in Facebook honest article on the topic