BIO (Baseline Informatiebeveiliging Overheid) and Microsoft 365

What BIO is

The BIO is the mandatory information-security baseline for Dutch government organizations. Its identity and access-control requirements apply directly to public-sector Microsoft 365 deployments and their Entra ID configuration.

How Siemserva maps to BIO

BIO asks for strong identity, access control, and monitoring. Siemserva evidences those areas with the checks below, each ranked by Severity and checked against your own tenant:

• Identity and access management (60 checks)

  At Risk With High RiskUser Break Glass Account DisabledUser Break Glass Account Is Not Highly PrivilegedUser Break Glass Account Last Password ChangeUser Break Glass User Not EnabledUser High Risk User

• Conditional Access (60 checks)

  Conditional Access Admin Portal Missing MFAConditional Access Break Glass Account Covered By PolicyConditional Access Group Critical Coverage GapConditional Access MFA Policy BypassedConditional Access User Critical Coverage GapConditional Access Block Legacy Exchange Active Sync Not Found

• Multi-factor authentication (42 checks)

  Auth User Not MFA RegisteredAuth Microsoft Authenticator Authentication Method In Use But Not Allowed By UserAuth Password Authentication Method In Use But Not Allowed By Senserva Security ManagerAuth Passwordless Microsoft Authenticator Authentication Method In Use But Not Allowed By UserAuth Require Passwordless But Its Not Used By UserAuth Software Oath Authentication Method In Use But Not Allowed By User

• Logging and audit (43 checks)

  Log Blocked Signin Bad IP Or Too Many Invalid AttemptsLog Flagged For ReviewLog Legacy Auth ProtocolAudit CA ChangeAudit CA Failed Conditional Access ChangeAudit Failed Authorization Change

See every check with its Severity and remediation in the checks catalog, or the per-control detail in the control reference.

Evidence BIO in your own Microsoft 365

Siemserva by Senserva runs the identity, access, privileged-access, and logging checks above, and 650+ others, against your own tenant: it shows where you meet or miss each requirement, ranks the gaps by Severity, and produces audit-ready evidence and validated fixes to close them.