mirror of
https://github.com/microsoft/BCQuality.git
synced 2026-08-07 18:06:53 +01:00
e81632b4be
Fill telemetry and Query coverage, strengthen thin review domains, correct audited content defects, and add deterministic cheap-model evaluation and reference-integrity safeguards. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com> Copilot-Session: 9825b012-e653-496a-9310-c1f4b6f8ac27
26 lines
1.5 KiB
Markdown
26 lines
1.5 KiB
Markdown
---
|
|
bc-version: [all]
|
|
domain: security
|
|
keywords: [access, internal, internalsvisibleto, recordref, codeunit-run, security-boundary, authorization]
|
|
technologies: [al]
|
|
countries: [w1]
|
|
application-area: [all]
|
|
---
|
|
|
|
# Access Internal is API hygiene, not an authorization boundary
|
|
|
|
## Description
|
|
|
|
`Access = Internal` controls compile-time symbol visibility. It does not prevent runtime access through mechanisms such as `RecordRef`, `TransferFields`, or `Codeunit.Run`, and `internalsVisibleTo` deliberately grants compile-time access to named companion apps. Microsoft explicitly documents that access modifiers cannot be used as a security boundary.
|
|
|
|
## Best Practice
|
|
|
|
Use `internal` to keep implementation details out of the supported API, but enforce sensitive operations with permissions, entitlements, and explicit authorization checks appropriate to the operation. Treat `internalsVisibleTo` as a same-publisher development/testability relationship, not as a trust grant for secrets or elevated data access.
|
|
|
|
See sample: `internal-access-is-not-a-security-boundary.good.al`.
|
|
|
|
## Anti Pattern
|
|
|
|
Placing privileged work in an internal codeunit and claiming that other extensions cannot invoke it, or exposing an app to a different publisher through `internalsVisibleTo` because `internal` is assumed to protect the underlying operation. The access modifier narrows supported callers; it does not authenticate runtime callers.
|
|
|
|
See sample: `internal-access-is-not-a-security-boundary.bad.al`.
|