Setting up multi-factor authentication across your household's accounts
6 min read · Written by Mustafa Husain, Founder of SAS4HomeIT · Published August 26, 2026
Multi-factor authentication is the single highest-impact security step most households skip, because it blocks the vast majority of account takeover attempts even if a password is compromised. Start with email accounts, since they're often the recovery method for everything else, then banking and any account tied to payment information, using an authenticator app where possible and always saving backup codes.
Where to start
Email accounts first, since they're often the recovery method for everything else, followed by banking apps and any account tied to payment information. These carry the highest real-world consequences if compromised, and email specifically is worth prioritizing since a compromised email account can often be used to reset passwords on everything else you own.
Choosing a method
An authenticator app (Google Authenticator, Microsoft Authenticator) is generally more secure than SMS codes, which can be intercepted through SIM-swapping in rarer, targeted cases. SMS is still far better than no second factor at all if that's the only option offered, don't let the search for the perfect method delay turning on a good-enough one today.
Why backup codes are the step people forget
Every major service offers backup codes generated at setup specifically for the scenario where you lose access to your authenticator app or phone. Skipping this step is one of the most common ways people end up genuinely locked out of their own accounts, precisely the outcome multi-factor authentication was supposed to protect against, not cause.
Rolling it out across a household without overwhelming anyone
Trying to set up MFA on every account for every family member in one sitting tends to be abandoned partway through. Starting with the highest-risk accounts (email, banking) for each person, then expanding gradually, is more likely to actually get fully implemented than an ambitious all-at-once approach that runs out of patience.
What we help with
We walk through setting up authentication apps across your household's key accounts and make sure backup codes are saved somewhere safe, so a lost phone doesn't lock anyone out of their own accounts, prioritizing the highest-risk accounts first rather than trying to do everything in one overwhelming session.
Key terms
- Multi-factor authentication (MFA)
- A login method that requires a second proof of identity, like a code from an app or phone, in addition to a password, so a stolen password alone isn't enough to access the account.
- SIM-swapping
- A targeted attack where someone convinces a mobile carrier to transfer a victim's phone number to a new SIM card, letting them intercept SMS-based verification codes.
Frequently asked questions
Which accounts should I set up multi-factor authentication on first?
Email accounts first, since they're often the recovery method for everything else, followed by banking apps and any account tied to payment information, as these carry the highest real-world consequences if compromised.
Is an authenticator app better than SMS for multi-factor authentication?
Generally yes, an authenticator app like Google Authenticator or Microsoft Authenticator is more secure than SMS codes, which can be intercepted through SIM-swapping in rarer, targeted cases, but SMS is still far better than no second factor at all.
Why should I save backup codes when setting up MFA?
Every major service offers backup codes generated at setup for when you lose access to your authenticator app or phone, skipping this step is one of the most common ways people end up genuinely locked out of their own accounts.