To protect your personal information from being shared without your consent, there are a few steps you can take:

1. Always keep your passwords private, and use different passwords for each of your accounts.
2. Use two-factor authentication for your accounts, which adds an extra layer on security on top of your passwords.
3. Be aware of what information you are sharing on social media and with whom.
4. Use caution when sharing information with an unknown or untrusted source.
5. Be mindful of phishing attempts and never share personal information in response to an email or message.
6. Research companies and websites before inputting any personal information.