Why does Cybersecurity and Data Privacy Diligence matter?
A privacy policy describes what a company says it does with data; this diligence checks what it actually does, and the gap between the two is exactly what a buyer's security team is trying to find. An undisclosed prior breach, weak access controls, or vendor contracts that do not flow down adequate security obligations become the buyer's problem the moment the deal closes, sometimes triggering notification obligations to customers or regulators under the buyer's own name.
What does Cybersecurity and Data Privacy Diligence look like in practice?
Suppose a target company experienced a minor security incident eighteen months earlier, a misconfigured database briefly exposed customer emails, that was quietly fixed without formal customer notification, because internal counsel judged it below the legal disclosure threshold at the time. Security diligence for an acquisition uncovers the incident through server logs and an old internal message thread, and the buyer now has to independently assess whether that judgment call was correct and whether any residual obligation transfers with the deal.
What are the common mistakes with Cybersecurity and Data Privacy Diligence?
- Treating a clean, up-to-date privacy policy as evidence of good security practices, when diligence specifically tests the gap between stated policy and actual practice.
- Not documenting past security incidents and the reasoning behind how they were assessed and handled, leaving no record to show a buyer's diligence team later.
- Assuming security diligence is only relevant for companies handling obviously sensitive data, when any company holding customer data undergoes some version of this review.
- Not confirming that vendor and subprocessor contracts flow down the same security and data-handling obligations the company has committed to its own customers.
Related concepts
- Data Privacy Basics (GDPR/CCPA)The baseline legal obligations for handling personal data (what you may collect, why, how long you keep it, and what rights the person it describes has over it) set for EU residents by GDPR and for California residents by CCPA.
- Litigation DisclosureThe requirement, in both financing and acquisition diligence, to disclose any pending, threatened, or settled legal disputes involving the company (lawsuits, regulatory investigations, employment claims, IP disputes) so a buyer or investor can assess the actual and contingent legal risk they are taking on.
- IP Diligence and Freedom to OperateThe review a buyer or investor performs to confirm a target actually owns its intellectual property free of gaps (unsigned assignments, open-source license obligations) and that using it does not infringe a third party's existing patents or IP rights.