Mergers and acquisitions (M&A) concentrate risk into a narrow window. The moment a deal is announced, employees with access to proprietary research, source code, and unreleased product plans face pressure and opportunity at the same time. Some update their resumes. A smaller number decide to take something with them: a research file, a pricing model, or a customer list before the transition is final. For compliance and security teams, the challenge goes beyond stopping data exfiltration.