Closing a deal does not close the cyber diligence process. In many respects, it is where the more important work begins. The acquisition process may have identified vulnerabilities, control gaps and areas requiring improvement. Once the company enters the portfolio, however, the sponsor has an opportunity to turn those findings into a structured program of risk reduction. The first 100 days can be particularly important. Not because every cyber issue needs to be fixed immediately, but because this is when expectations, ownership and priorities can be established.
Start with the risks that matter
One of the dangers following an assessment is treating every finding as equally urgent. That can create long remediation lists, overwhelm portfolio company teams and make cybersecurity feel like an additional administrative burden at precisely the point when management is already navigating the demands of new ownership. A more effective approach is risk-based.
Which weaknesses create the greatest potential exposure? Which can be addressed relatively quickly? Which require investment or structural change? And which improvements will materially strengthen the company’s overall cyber posture? The objective should be a practical roadmap, not a perfect program overnight.
Create alignment between sponsor and company
Cyber oversight works best when the sponsor establishes the objective but does not attempt to become the portfolio company’s cybersecurity department. There needs to be clarity over what good looks like, which risks require attention and how progress will be reported. Portfolio company management then needs the flexibility and expert support to implement improvements within the realities of its own business.
This is where a consistent baseline becomes valuable. When sponsors and management teams are working from the same assessment, risk categorization and priorities, conversations become more objective. Rather than debating whether cybersecurity is “good” or “bad”, they can focus on specific actions and measurable improvement.
Make progress visible
The other priority during early ownership is establishing how progress will be tracked. A point-in-time assessment tells the sponsor where a company started. Continuous monitoring shows whether the risk is being reduced. For PE firms managing multiple businesses, this becomes particularly important. Sponsors need to understand which companies are progressing, where remediation has stalled, and where additional intervention may be required. Done effectively, that oversight does not need to create significant additional work for either the investment team or portfolio company.
The goal is visibility, not micromanagement. The first 100 days therefore provide an opportunity to establish something much more valuable than a remediation list. They create foundations for a consistent relationship between cyber risk, portfolio oversight, and value creation throughout the hold period. The diligence identified where you started. What happens next determines whether that insight translates into a stronger business.




