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INFOGRAPHIC

Single Sign‑On vs. Multiple Username‑Password Sets

Enterprises must decide between consolidating access with Single Sign‑On (SSO) or maintaining separate credentials per application. This infographic evaluates security posture, user productivity, risk exposure, and total cost of ownership to guide senior technology leaders.

Template: EXECUTIVE_MATRIXPublished: 9/15/2026
THE ARCHON

Single Sign‑On vs. Multiple Username‑Password Sets

Strategic comparison for enterprise identity security and operational efficiency

Enterprises must decide between consolidating access with Single Sign‑On (SSO) or maintaining separate credentials per application. This infographic evaluates security posture, user productivity, risk exposure, and total cost of ownership to guide senior technology leaders.

Security Impact
How each approach influences credential‑related risk and defense depth.
  • SSO: Reduces password reuse and phishing surface; centralizes authentication controls (MFA, risk‑based auth).
  • Multiple passwords: Increases attack surface; higher likelihood of weak or reused passwords; harder to enforce uniform security policies.
User Productivity
Effect on end‑user experience and support overhead.
  • SSO: One credential per session; eliminates password fatigue; lowers help‑desk tickets for resets by up to 30‑50% (Gartner, 2023).
  • Multiple passwords: Frequent logins and resets; higher support cost; user frustration leading to work‑around behaviors.
Operational Complexity & Cost
Implementation, integration, and ongoing management considerations.
  • SSO: Up‑front integration effort (protocol mapping, federation); ongoing cost tied to IdP licensing and governance.
  • Multiple passwords: Low initial integration cost; cumulative admin overhead for password policies, vaults, and compliance audits.
Risk Mitigation Controls
Key controls required to compensate for each model.
  • SSO: Strong MFA, conditional access, session monitoring, and rapid revocation.
  • Multiple passwords: Password complexity rules, periodic rotation, credential vaulting, and robust password‑spray detection.
Strategic Recommendation
Guidance for CIOs/CISOs on adopting the optimal model.
  • Adopt SSO as the default authentication layer for all SaaS and internal apps.
  • Retain separate credentials only for legacy systems that cannot federate, applying compensating controls (MFA, vaulting).
  • Implement a phased migration plan with clear de‑provisioning milestones.
EXECUTIVE TAKEAWAY
Deploy enterprise‑wide SSO with mandatory MFA to cut credential‑related risk and support costs, while isolating legacy exceptions with strict compensating controls.
Technology Radar: Identity
Sources: Gartner, "Identity Governance and Administration Market Guide", 2023., NIST SP 800-63B, "Digital Identity Guidelines: Authentication and Lifecycle Management", 2022.

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Identity