By Stan Kreydin, Managing Director of Cyber Risk and Technology Advisory
Credential risk can compound across a buy-and-build platform when each acquired company introduces unmanaged accounts, shared passwords, stale administrative credentials, service accounts, and inconsistent access controls into the combined environment. Without post-acquisition credential rationalization, each add-on can expand the platform’s attack surface and create additional paths for unauthorized access. A single portfolio company with credential hygiene issues may be manageable, but three add-ons later, the same issue can become a platform-wide exposure. Each company entering the platform brings its own credential environment.
That can include:
- Shared logins used by multiple employees
- Default passwords that were never changed
- Vendor or service accounts that remain active after a project ends
- Administrative credentials associated with former employees and accounts with excessive permissions
Individually, these may appear to be isolated issues. Across a growing platform, they can accumulate.
Why Do Credential Issues Compound After Add-On Acquisition?
Credential environments are not always fully rationalized during integration. The reasons are understandable. Deal teams are focused on customers, employees, systems, finance, legal matters, and operational continuity. Credentials stored in individual applications are difficult to see from the outside and may not appear on a standard Day 1 checklist.
As new companies are acquired, the platform may gradually inherit dozens or hundreds of accounts with inconsistent ownership, permissions, password practices, and governance. The attack surface expands alongside the organization.
How Can One Compromised Credential Affect the Broader Platform?
Shared infrastructure can turn an isolated credential issue into a broader exposure. A credential that works for one business unit may be tested against other entities, applications, or environments. Shared email systems, identity platforms, network connections, cloud applications, and administrative practices can create paths between companies that did not exist when each business operated independently. This is especially important in buy-and-build strategies. The risk is no longer simply whether one portfolio company has weak credential hygiene. It is whether those weaknesses have been inherited, replicated, or connected across the platform.
Why Does This Matter at Exit?
Credential and access risks can become more visible when the platform undergoes another transaction. A buyer’s technical team is not necessarily evaluating the hygiene of a single original business. It may be evaluating everything accumulated across the entire acquisition strategy. Unmanaged credentials, inconsistent access controls, and poorly integrated systems can therefore pose both cybersecurity and integration remediation risks. Assessing credential and access management across portfolio companies can help sponsors understand the consolidated environment before those issues surface in future diligence.
If your team is encountering challenges related to credential hygiene or other cybersecurity risks, please reach out to Stan Kreydin at [email protected] for any inquiries.