This detection rule identifies when a user resets one of their own Multi-Factor Authentication (MFA) factors in the Okta environment. The primary event logged is 'user.mfa.factor.deactivate', which confirms that the user successfully deactivated an MFA factor. This could be part of routine security practices, but it’s important to monitor such actions to prevent threats like account takeovers through unauthorized MFA changes. The rule captures logs specifically from the 'Okta.SystemLog' and sets a severity level of 'Info', indicating that although this action is normal, it should be tracked for auditing purposes. The detection logic validates against expected user activity and excludes false positives from unrelated events.