Storage accounts should prohibit public access

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

• 10.3.2.2 Ensure that 'Public Network Access' is 'Disabled' for storage accounts

CIS Azure Benchmark v5.0.0

• 9.3.2.2 Ensure that 'Public Network Access' is 'Disabled' for storage accounts

CIS Azure Benchmark v2.1.0

• 3.7 Ensure that 'Public Network Access' is `Disabled' for storage accounts

CIS Azure Benchmark v3.0.0

• 4.6 Ensure that 'Public Network Access' is `Disabled' for storage accounts

FedRAMP High

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