MFA and account security for business email and cloud accounts.

What MFA actually is

Multi-factor authentication requires a second form of proof beyond a password before someone can sign into an account - a code from an authenticator app, a push notification to approve on a phone, or a hardware security key. The idea is simple: a stolen or guessed password alone is no longer enough to get in. Since the overwhelming majority of account compromises start with a stolen or phished password, MFA closes off the most common path attackers use, and it's the single highest-impact security control a business can put in place on its email and cloud accounts.

Why it matters more for business email than almost anything else

Business email is usually the master key to everything else - password resets for other systems, access to financial approvals, and a direct line of trust to your clients and vendors. When an attacker compromises a business email account, they don't just read mail; they impersonate you to redirect payments, send convincing phishing to your contacts, and often sit quietly for weeks gathering information before acting. Enforcing MFA on every account, with no exceptions for owners or long-tenured staff, closes off the entry point attackers rely on most.

Conditional Access: MFA that adapts to risk

Basic MFA asks for a second factor every time. Conditional Access policies are smarter about it - they can require MFA only when a sign-in looks risky (an unfamiliar location, a new device, an impossible-travel pattern), block sign-ins entirely from countries your business has no reason to operate in, and require a managed, compliant device before someone can reach sensitive data. This gives you strong security without making your team fight the login screen for every routine sign-in.

How this ties into cyber insurance

Cyber insurance applications increasingly ask directly whether MFA is enforced on email and remote access, and a "no" answer can mean a higher premium, a coverage exclusion, or an outright denial of a claim after an incident. Some carriers are now asking about Conditional Access and administrative account protections specifically, not just MFA in general. We help make sure your actual configuration matches what you're representing on an insurance application - because a mismatch there tends to surface at the worst possible time, during a claim.

Where we see accounts left exposed

The same gaps come up repeatedly: MFA enabled for most staff but skipped for an owner or an old admin account "because it's a hassle," legacy authentication protocols left open that bypass MFA entirely, no Conditional Access policies at all so every sign-in is treated the same regardless of risk, and shared or generic accounts with no MFA because "it's not a real person's login." Each of these is a door left open on purpose, and each one is straightforward to close once it's identified.

Further reading

For a plain-language explanation of what MFA is and why it matters, see our MFA explainer in the free toolkit. You can also run your own domain through our Email Security Checker to see how your current setup looks from the outside.