Azure Cognitive Search services should have public network access disabled

PCI DSS v4.0

• 1.2.8: Network security controls (NSCs) are configured and maintained.
• 1.3.1: Network access to and from the cardholder data environment is restricted.
• 1.3.2: Network access to and from the cardholder data environment is restricted.
• 1.4.2: Network connections between trusted and untrusted networks are controlled.
• 1.5.1 Security controls are implemented on any computing devices, including company- and employee-owned devices, that connect to both untrusted networks

NIS2 Directive (EU 2022/2555)

• 2 Risk management policy
• 6 Security in network and information systems acquisition, development and maintenance
• 11 Access control

NIST SP 800-53 Rev 5

• Information Flow Enforcement (AC-4)
• SC-7: Boundary Protection
• SC-7(3) Access Points

NIST SP 800-171 Rev 2

• 3.1.3 Control the flow of CUI in accordance with approved authorizations
• 3.13.1: Monitor, control, and protect communications (i.e., information transmitted or received by organizational systems) at the external boundaries and key internal boundaries of organizational systems.
• 3.13.2 Employ architectural designs, software development techniques, and systems engineering principles that promote effective information security within organizational systems
• 3.13.5 Implement subnetworks for publicly accessible system components that are physically or logically separated from internal networks
• 3.13.6: Deny network communications traffic by default and allow network communications traffic by exception (i.e., deny all, permit by exception).

CIS Azure Benchmark v4.0.0

• 2.2.1.1 Ensure public network access is Disabled

RBI Cyber Security Framework for UCBs

• Annex I (1.3)

BSI C5:2025

• IAM-10.01B The cloud service provider ensures that access to its internal data and system functions is controlled and restricted to authorised personnel.
• IAM-10.02B The cloud service provider establishes processes and technical controls to manage and verify access permissions within its internal systems.

FedRAMP High

• AC-4 Information Flow Enforcement
• SC-7 Boundary Protection
• SC-7(3) Access Points

HIPAA Security Rule 2003

• 164.312(a)(1) Access control