In this article about increasing the security of LastPass the author suggests:
For additional security, you can have LastPass send security-related emails to a special security email address instead of your normal email address. For example, password hint emails, account recovery emails, and multi-factor authentication disable emails will all be sent here.
This email should be an extra-secure email address only you know about – if someone gains access to your day-to-day email account, they won’t be able to access your LastPass vault without access to your security email account.
Is this good advice or is it just an unnecessary complication having another e-mail address? Is the idea that an e-mail address not frequently used would appear in fewer databases and is therefore less likely to be (randomly) hacked?
This article focuses on LastPass, but would such an e-mail account be good for other things such as receiving password resets for other e-mail accounts?