In the modern deal-making landscape, a company’s digital perimeter is as critical as its balance sheet. For mid-market business owners and executives, the stakes have never been higher. Cybersecurity has evolved from a siloed IT concern to a primary board-level priority that can—and often does—derail significant M&A transactions.
When you enter a merger or acquisition, you are not just acquiring customers and intellectual property; you are inheriting every vulnerability, every piece of technical debt, and every potential regulatory fine within the target’s infrastructure. Without a clear plan, you risk walking into a “Trojan Horse” scenario where the cost of remediation exceeds the value of the deal. As you are preparing to sell your business, taking proactive steps to maximize value must include a thorough digital audit.
At Petersen Landis, we serve as your guide through these complexities. Our background in global environments allows us to provide the robust protection you need, ensuring that cybersecurity risks are identified, priced, and mitigated before you sign on the dotted line.
Why Cyber Diligence is Non-Negotiable in 2026
The regulatory environment has shifted aggressively. Data breaches now result in massive financial penalties under frameworks like the GDPR, CCPA, and evolving state-level mandates. Ransomware attacks can halt operations for weeks, leading to catastrophic revenue loss.
Undiscovered vulnerabilities destroy post-closing value through expensive remediation, regulatory actions, and friction during system integration. Recent deal cycles have seen an uptick in purchase price disputes and indemnification claims specifically tied to cybersecurity failures. To protect your investment, you must move beyond a cursory review and conduct a deep-dive assessment. Often, these issues can be mitigated by addressing important deal points in your Letter of Intent to ensure technical transparency from the outset.
Phase 1: Preliminary Cybersecurity Assessment
The first step in our guided plan is the initial evaluation of the target organization’s overall posture. This vulnerability pulse check determines the inherent risk of the transaction.
- Policy and Control Review: We evaluate the target’s existing cybersecurity policies and incident response plans to ensure they are current and practiced, rather than just “paper policies.”
- Standards and Certifications: Does the target meet ISO 27001 or SOC 2 compliance? Reviewing third-party audit reports and recent penetration tests provides an objective view of their risk profile.
- Infrastructure Overview: A high-level audit of the IT infrastructure and architecture helps identify obvious security gaps, such as a lack of physical security measures at data centers or outdated vulnerability scan protocols.
Phase 2: IT Infrastructure and Architecture Security
We then move to the technical engine room of the business. Sophisticated buyers look for modern security principles that facilitate easier integration.
- Identity and Access Management (IAM): We assess the target’s use of multi-factor authentication (MFA) and least-privilege principles. A robust Zero Trust Architecture is a strong indicator of a high-value, secure asset.
- Network and Cloud Security: Our team reviews network architecture and segmentation practices, ensuring that a single breach cannot compromise the entire system. We also evaluate cloud security configurations and the management of open-source code and libraries, which are common entry points for malware.
- Maintenance and Patching: We investigate patch management practices and technical debt. A target that is years behind on security updates represents a significant post-closing expense.
Phase 3: Data Governance and Asset Management
Data is often the primary value driver in a tech or manufacturing deal, but it is also the primary liability.
- Asset Inventory: The target must provide a comprehensive inventory of physical assets, logical assets, and managed services. You cannot protect what you have not identified.
- Encryption and Management: We verify data encryption at rest and analyze the data flow across the organization. This includes evaluating data governance practices and the security of code management systems.
- Legacy Systems: Old hardware and software (legacy systems) often lack modern security hooks. We help you identify these “relics” so they can be factored into the valuation or integration timeline.
Phase 4: Employee Awareness and Insider Threats
Technology alone cannot secure a business. Human error remains the leading cause of security incidents.
- Cybersecurity Training Programs: We review the frequency and quality of cybersecurity training programs and phishing simulations.
- HR and Governance: We examine information security policies and HR policies regarding policy acknowledgements. Effective insider threat mitigation requires both technical controls and a culture of security.
Phase 5: Incident Response and Breach History
Past performance is often indicative of future risk. A clean record may simply mean a breach hasn’t been detected yet. When drafting the purchase agreement, it is critical to focus on defining a seller’s knowledge regarding past security events to allocate risk appropriately.
- Security Incident Review: We perform a deep-dive into records of past breaches and any active breaches. This includes reviewing remediation actions taken and whether public disclosure was handled correctly.
- Continuity Planning: We assess the business continuity plan and disaster recovery plan. In the event of an attack, how quickly can the target return to operations?
- Regulatory Exposure: We calculate the risk of regulatory fines based on the target’s information security risk assessment and historical compliance.
Phase 6: Third-Party and Supply Chain Risk Management
In a global economy, a target is only as secure as its weakest vendor.
- Vendor Management: We review the target’s vendor management program and vendor management policies. This includes assessing critical vendors and their security certifications.
- Contracts and Agreements: Carolyn Landis and our team scrutinize contracts and agreements for liability clauses and third-party risk management requirements to ensure you aren’t inheriting someone else’s negligence.
Phase 7: Regulatory Compliance and Legal Considerations
For companies in highly regulated sectors like financial services or healthcare, compliance is the deal.
- Data Privacy Standards: We verify strict adherence to GDPR, CCPA, HIPAA, and GLBA. This involves reviewing data protection policies, data classification and retention policies, and the handling of personal identifiable information (PII).
- Governance, Risk, and Compliance (GRC): We evaluate the target’s breach notification procedures and their history with regulatory audits.
Phase 8: Cyber Insurance Coverage
Insurance is your final safety net. We ensure that the transfer of risk is actually functional.
- Policy Adequacy: We review the existing cyber insurance policy, looking specifically at coverage limits, deductibles, and exclusions.
- Transaction Impacts: We determine if the policy will carry over post-closing or if new coverage is required. We also assess the potential for financial risk and legal costs stemming from ransomware attacks that might occur during the transition period.
Phase 9: Post-Merger Integration (PMI) Planning
The guide doesn’t stop at the closing table. The integration period is when systems are most vulnerable.
- Integration Blueprint: We help develop a post-closing cybersecurity integration plan. This includes the integration of cybersecurity teams, systems, and processes.
- Gaps and Redundancies: We conduct a gap analysis and a post-acquisition security assessment to identify security gaps. Part of this plan involves the retirement of redundant systems to reduce the attack surface.
- Monitoring and KPIs: We establish key performance indicators (KPIs) and ongoing evaluations through external auditors. Establishing a clear reporting structure and audit and compliance plans ensures that the new entity remains secure as it grows.
Structuring Your Deal Protection
Once risks are identified, Jeff Petersen and our transactional team work to reflect these findings in the purchase agreement. If technical debt or high-risk vulnerabilities are found, we often suggest negotiating indemnity deductibles and caps that specifically account for the potential fallout of a breach.
This protection includes:
- Specific cybersecurity representations.
- Dedicated indemnification provisions for remediation and fines.
- Purchase price adjustments or escrows for identified technical debt.
- R&W insurance with specific cyber endorsements.
Secure Your Transaction with Petersen Landis
Don’t let an undisclosed breach or an outdated server room destroy the value of your hard-earned deal. Whether you are a founder in San Diego or an executive in Chicago, you deserve sophisticated, efficient, and transparent legal counsel.
Contact Petersen Landis today to ensure your next M&A transaction is protected by robust cybersecurity due diligence.










