Module 13 · Azure AD / Entra ID Attack Surface

Manish Garg
Manish Garg Associate of (ISC)² · RingSafe
Apr 27, 2026
4 min read
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Last updated: April 29, 2026

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Why this module exists. Indian enterprises moved their identity to Microsoft 365 / Entra ID (formerly Azure AD) in waves between 2019 and 2024. Attackers followed. The 2023-25 surge in token-theft and consent-phishing attacks is now the dominant initial-access technique against Microsoft-shop enterprises.

Why this module exists. Indian enterprises moved their identity to Microsoft 365 / Entra ID (formerly Azure AD) in waves between 2019 and 2024. Attackers followed. The 2023-25 surge in token-theft and consent-phishing attacks is now the dominant initial-access technique against Microsoft-shop enterprises. Different concepts, different tools, different defenders.

How Entra ID is different from on-prem AD

  • No Kerberos by default. Authentication is OAuth 2.0 / OIDC.
  • No NT hashes at the protocol level. Authentication is via tokens, not hashes.
  • Conditional Access replaces GPO for access policy.
  • App registrations replace Kerberos service principals.
  • Hybrid identity via Entra Connect / AAD Connect — passwords sync from on-prem AD to cloud.
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