If you could make one change today that blocks the vast majority of account-takeover attacks — for free, in an afternoon — you'd do it, right? That change is multi-factor authentication (MFA). It's the highest-return security step a small business can take, and yet plenty of businesses still haven't turned it on. Here's why it matters and how to get it in place.
What is MFA?
Multi-factor authentication means proving who you are with more than just a password. After entering your password, you confirm your identity a second way — usually a code from an app, a prompt on your phone, or a hardware key.
The idea is simple: even if an attacker steals or guesses your password, they still can't get in without that second factor, which they don't have.
Why passwords alone aren't enough
Passwords get compromised constantly — through phishing, data breaches on other websites, and reuse across accounts. Once a password leaks, an attacker can walk straight into an account that's protected by nothing else. Given how many breaches involve stolen or weak credentials, relying on passwords alone is one of the biggest risks a business runs.
MFA closes that door. It's why security agencies everywhere — including the Canadian Centre for Cyber Security — recommend it as a foundational control for organizations of every size.
Where to turn on MFA first
Prioritize the accounts that would hurt most if compromised:
- Email and Microsoft 365 / Google Workspace — your email is the master key to resetting other accounts. Protect it first.
- Banking and financial accounts.
- Remote access — VPNs and anything that reaches into your network.
- Admin accounts — anything with elevated privileges.
- Key business apps — accounting, CRM, and anything holding customer data.
Which type of MFA is best?
Not all MFA is equal:
- Authenticator apps (like Microsoft Authenticator) — a strong, free, easy default for most businesses.
- Hardware security keys — the most secure option, ideal for high-risk or admin accounts.
- SMS text codes — better than nothing, but the weakest form; use an app instead where you can.
For most small businesses, an authenticator app across all important accounts is the sweet spot of security and simplicity.
"Won't it slow my team down?"
Barely. Modern MFA usually means a single tap on your phone, and many systems only prompt occasionally on trusted devices. The tiny bit of friction is nothing compared to the cost of a compromised account — and staff adapt to it within days.
The bottom line
MFA is the closest thing to a free lunch in cybersecurity: minimal cost, minimal effort, enormous protection. If your business hasn't enabled it everywhere that matters, that's the most valuable hour of security work you can do this week.
We help Alberta businesses roll out MFA and the rest of the security fundamentals as part of our cybersecurity services. Want a hand getting it set up right? Book a free evaluation, or read our 7 cybersecurity essentials.