If you use 1Password and say Authy (Assuming your Authy pass isn't in 1Password) or Google Authenticator. Then all services with MFA wont be compromised if the 1Password masterpass is...
Not quite. An attacker would need either your account password AND an already authorized device, OR they would need both your account password AND Secret Key. If you have 2FA enabled for your 1Password account, and the attacker doesn't have one of your authorized devices, they would also need your second factor (TOTP or hardware key).
Additionally our Principal Security Architect, Jeff Goldberg, wrote some thoughts on this subject, here: https://blog.1password.com/totp-for-1password-users/
- Ben, 1Password
Then I was like "1Password will sync these to my new phone so I never lose access to everything again? Fine."
I also started to get questions from my wife around how she could access things in the event of my death and it seemed having a 1Password printout in a safe deposit box she could access - and having that include the MFA too - was a good idea.
My master password in 1Password is quite secure (A long obscure sentence and with special characters etc.), I have it auto-lock pretty quickly (thanks TouchID!) and I guess that will have to be enough unless I shift to something like a Yubikey on my keychain for things down the road...
Not every little SaaS needs MFA.