Two Factor Authentication is required on all BSC accounts.
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Your security settings can be found here: https://myaccount.google.com/security
Getting started with Authenticator
Getting started with Google Prompts
Don't forget to turn on 2FA!
The 8-digit codes are one-time codes. They will only work once. You may need to use the "Try another way" option in order to enter the one-time code.
If you're not already using one, consider using a password manager. Here's a video with more info: All Things Secured, 7 Password Managers 2024 (YouTube)
You should delete the 2FA options your predecessor configured.
You should never share your password with anyone ever.