This detection rule monitors changes to the machine approval requirements within the Tailscale configuration, specifically when a user disables these settings. Disabling machine approval allows new devices to access the network without the necessary vetting process, which can lead to potential security vulnerabilities. The rule is triggered upon an event where a user, identified as Homer Simpson, performs an action that disables the approval requirement. The rule incorporates checks against the logs to ascertain the action taken, the user who executed it, and the context surrounding the event. Critical to this rule is ensuring that such modifications to approval settings are validated against legitimate business needs and that vigilance is maintained to re-enable settings as necessary to uphold the organization's security posture. The rule leverages logs from Tailscale's audit trail and exposes relevant fields including event time, actor information, and actions taken. Given the possible security implications, the rule is marked with a high severity level and includes a runbook for assessing the situation based on organizational requirements.