I trust LastPass's security as much as I trust any company's security. I'm not worried about MITM attacks, but there are many other ways that someone could get

I trust LastPass's security as much as I trust any company's security. I'm not worried about MITM attacks, but there are many other ways that someone could get access to an account. The biggest security issue is that they hold the keys to my entire kingdom. So if someone somehow gains access to that account, I need another layer of protection, no matter how small the chances are.