Scc Migrate Static Dynamic Mute Rules

What the migration and reset process is

In Google Cloud Security Command Center, static mute rules and dynamic mute rules govern whether security findings are suppressed from primary views, notifications, and export pipelines. When both rule types exist, static mute rules take precedence over dynamic mute rules. Migrating completely to dynamic mute rules requires creating the new dynamic rules, deleting the obsolete static mute rules, and programmatically resetting the static mute state of existing findings to UNDEFINED via bulk-mute operations.

How it meets the requirement

• Eliminates precedence conflicts for future findings: Deleting all static mute rules ensures that new or updated findings will no longer match active static configurations, allowing lower-priority dynamic mute rules to evaluate and apply automatically.
• Restores dynamic evaluation on existing findings: Deleting a static mute rule does not retroactively remove the static MUTED state already applied to existing findings. Running gcloud scc findings bulk-mute (or using the bulkMute API method) with --mute-state=UNDEFINED clears the legacy static mute property on existing findings, allowing dynamic mute rules to govern their mute state and honor configured expiration timestamps.
• Enables automated unmuting: Once the findings are governed solely by dynamic rules, they will automatically unmute when the dynamic rule reaches its expiration date or when underlying resource properties change.

Key advantages and capabilities

• Automated lifecycle management: Dynamic mute rules automatically mute existing and incoming findings and unmute them when expiration windows elapse or when remediations alter finding attributes.
• Clean migration path: Using muteInfo.dynamicMuteRecords combined with bulk-mute resets allows seamless operational transitions without leaving orphaned, statically muted records.
• Predictable rule evaluation: Operating exclusively with dynamic mute rules prevents confusing rule conflicts and precedence shadowing.

Why this is optimal

Static mute rules strictly override dynamic mute rules whenever both apply to a given finding. Simply creating dynamic mute rules is insufficient because the static mute rules will continue overriding them on new findings, while existing findings retain their persistent MUTED attribute. Deleting the static rules and resetting existing findings to UNDEFINED is the only documented method to fully activate dynamic mute rule evaluation.