When sharing personal information with websites and apps that you are unfamiliar with, it is important to take the following steps:

1. Assess the website's security by looking for information about data privacy, or ask a friend or trusted source for their opinion.
2. Look for the https at the beginning of the website link; this indicates that the website is secure.
3. Be mindful of what type of information is requested of you by the website; you may not need to provide all of it, and could provide less sensitive information instead.
4. Read the website's privacy policy, which is often located at the bottom of the homepage.
5. Check if the website offers two-factor authentication for extra account security.