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🔐 '''Multifactor authentication''' is a security mechanism that requires a user to present two or more independent credentials — drawn from something they know (a password), something they have (a device or token), or something they are (a biometric) — before gaining access to a system or application. In the [[Definition:Insurance | insurance]] industry, where platforms handle sensitive [[Definition:Personally identifiable information (PII) | personal data]], financial transactions, and [[Definition:Policy administration | policy administration]] workflows, multifactor authentication has become a baseline expectation for protecting digital assets against unauthorized access.

🛠️ Implementation typically layers a traditional password with a second factor such as a one-time code sent to a mobile device, a push notification from an authenticator app, or a hardware security key. The principle is straightforward: even if an attacker compromises one credential through [[Definition:Phishing | phishing]], credential stuffing, or a [[Definition:Data breach | data breach]], the additional factor prevents access. [[Definition:Insurance carrier | Carriers]], [[Definition:Managing general agent (MGA) | MGAs]], and [[Definition:Insurtech | insurtech]] platforms apply multifactor authentication across agent portals, policyholder self-service sites, [[Definition:Claims handling | claims]] systems, and internal administrative tools — often with risk-adaptive configurations that escalate authentication requirements when login behavior appears anomalous.

📋 Beyond its operational security value, multifactor authentication has become a significant factor in [[Definition:Cyber insurance | cyber insurance]] [[Definition:Underwriting | underwriting]]. Many [[Definition:Underwriter | underwriters]] now treat the absence of multifactor authentication on critical systems as a disqualifying control gap, declining to offer coverage or imposing restrictive [[Definition:Endorsement | endorsements]] on applicants that cannot demonstrate its deployment. [[Definition:Insurance regulator | Regulatory]] guidance — including directives from the New York Department of Financial Services and NAIC model laws — reinforces this stance by mandating multifactor authentication for access to [[Definition:Nonpublic information (NPI) | nonpublic information]]. For organizations seeking [[Definition:Cyber insurance | cyber coverage]] at competitive terms, deploying this control is no longer optional — it is a threshold requirement that [[Definition:Risk assessment | underwriting questionnaires]] explicitly verify.

'''Related concepts'''
{{Div col|colwidth=20em}}
* [[Definition:Cyber risk]]
* [[Definition:Cyber insurance]]
* [[Definition:Data breach]]
* [[Definition:Information security]]
* [[Definition:Access control]]
* [[Definition:Phishing]]
{{Div col end}}

Definition:Multifactor authentication - Revision history

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