If You Only Do One Thing for Security This Year, Turn On Multi-Factor Authentication

Passwords get stolen constantly – through phishing emails, data breaches at unrelated websites, and malware that quietly records keystrokes. Once a password is out there, it works for whoever has it.

Multi-factor authentication (MFA) is what stops that from becoming a break-in.

MFA requires a second proof of identity beyond the password, so a stolen password alone isn’t enough to get into an account. Microsoft’s own research has found it blocks the overwhelming majority of automated account-takeover attempts.

Not All MFA Is Equal

Any MFA is far better than none, but the methods differ in how well they hold up against a determined attacker.

• Text message codes: Better than nothing, but vulnerable to SIM-swapping and interception. Fine as a starting point, not as a long-term answer.

• Authenticator apps: Codes or approval prompts generated on the employee’s phone. A solid, widely supported standard for most businesses.

• Passkeys and hardware security keys: The strongest option, because they can’t be tricked into working on a fake login page. Worth using for administrators and high-value accounts.

Watch Out for "MFA Fatigue"

Attackers have adapted. Some now trigger repeated approval prompts, hoping an annoyed or distracted employee taps "Approve" just to make them stop. Using number matching (where the user must type a code shown on the login screen) and training your team to never approve a prompt they didn’t start closes this loophole.

Where to Start

You don’t have to switch it on everywhere in one day. Prioritize in this order:

• Email and Microsoft 365 / Google accounts – the keys to nearly everything else.

• Administrator and IT accounts – the most damaging accounts to lose.

• Remote access and VPN – a common entry point for attackers.

• Banking, payroll, and finance tools – where fraud costs the most.

A Small Inconvenience for a Large Protection

MFA adds a few seconds to a login. A compromised email account can cost a business weeks of cleanup, and sometimes far more.

Is MFA Turned On Everywhere It Should Be?

Atech Business Services helps businesses roll out MFA smoothly – the right method, the right accounts, and a team that actually understands why.

Schedule a complimentary consultation to review your MFA coverage.