The DocuSign Envelope Corrected detection rule monitors specific events in the DocuSign transaction process, particularly focusing on 'envelope-corrected' events. The rule aims to identify potential document tampering or suspicious modifications to legal agreements that have already been dispatched. When an envelope is corrected after being sent, it may indicate that unauthorized alterations have occurred. The detection logic evaluates correction behaviors over time, specifically by tracking the frequency of corrections tied to individual users or envelopes. Given that legal documents require high integrity, this rule emphasizes the need for validation after any such event to safeguard against fraudulent activities. The runbook accompanying the rule provides a clear investigative process which includes reviewing corrections, assessing user behavior, and verifying recipient authenticity to ensure legitimate business practices are followed.