
Hello, freya lister
Welcome to Microsoft Community.
Even if you registered your Facebook and Instagram accounts using a Microsoft email, you'll still need to contact Facebook and Instagram's customer support teams to resolve the issue of your accounts being hacked. Facebook and Instagram are social media platforms operated by Meta. Microsoft doesn't have direct management or control over these platforms, so they can't handle issues with these accounts directly. Account security and privacy issues need to be addressed through official channels to ensure the safety and privacy of user data. Only the official teams at Facebook and Instagram can securely access and modify account information.
Please visit the help centers for Facebook and Instagram, search for "account hacked" or "account compromised," and follow the instructions to submit a report.
Yuhao L
Microsoft Community Technical Support