Three Account Security Habits That Fit a Small Business Day

You do not need a security department to raise the bar on account access. You need a short list of habits that survive busy weeks, staff turnover, and the pile of tools every southern New England shop already runs.

Passwords alone are not enough. The Cybersecurity and Infrastructure Security Agency (CISA) is clear that multifactor authentication (MFA) adds a second check so a stolen password is less likely to open the door, and that businesses should aim for stronger MFA options when they can. See CISA’s guidance: Require Multifactor Authentication.

Here are three habits that fit how owner-run businesses actually work.

1. Turn MFA on for the accounts that hold the business

Start where compromise hurts most: email, file storage, remote access, bookkeeping, payroll, and any admin login for your CRM, TMS, or website. CISA advises requiring MFA wherever possible, beginning with admin accounts and people who handle sensitive data, and confirming that remote and privileged access require it.

If a vendor still makes MFA optional, treat that as unfinished setup, not a nice-to-have. Put the change on a one-page checklist and knock it out in a single afternoon instead of waiting for a quiet week that never arrives.

2. Prefer a stronger MFA method when the product offers it

Not every second factor is equal. CISA ranks common options from stronger to weaker: a physical security key, an authenticator app with number matching, an authenticator app with a one-time code, biometrics (best paired with another method), and finally SMS or email codes, which it calls the weakest option and recommends only when stronger choices are unavailable.

For a small team, that usually means: use an authenticator app when the product supports it, upgrade to a security key for the few admin accounts that matter most, and accept SMS only as a temporary fallback. Any MFA beats none. Stronger MFA beats weaker MFA when you can get it without derailing the workday.

3. Keep a living list of who can get into what

MFA protects a login. It does not tell you whether last year’s contractor still has access to QuickBooks, the shared drive, or the freight portal. Maintain a simple inventory: system name, who has an account, whether they are an admin, and the last review date.

Review it when someone joins, changes roles, or leaves. Removing access should be a checklist item next to collecting keys and devices, not a memory exercise six months later. Pair that list with the MFA rollout so every active account is both enrolled and still supposed to exist.

Make it boring on purpose

Good security for a small business is rarely dramatic. It is MFA that is on, methods that are as strong as the vendor allows, and an access list you actually update. Those three habits cut a large class of account takeovers without buying a new platform or hiring a full-time security lead.

If you want a fractional partner to inventory your stack, turn MFA on across the tools that matter, and clean up leftover access, contact AEsir Information Solutions. We help southern New England SMBs tighten the basics so growth does not outrun operations.