What do security teams get wrong about securing enterprise applications like PeopleSoft?

A common mistake is treating application security as a one-time hardening task instead of an ongoing identity and access discipline. Teams often overfocus on technical controls while underestimating role sprawl, excessive privilege, and weak offboarding. Effective protection requires continuous review of entitlements, tighter administrative controls, and a clear process for validating access against business need.

Why This Matters for Security Teams

Enterprise applications like PeopleSoft are often treated as “just another app,” but the security problem is really identity sprawl, privilege drift, and weak lifecycle control. That mindset misses how these systems accumulate service accounts, integration users, batch jobs, and administrative exceptions over years of customisation. NHI Management Group’s Ultimate Guide to NHIs — Why NHI Security Matters Now notes that 97% of NHIs carry excessive privileges, which helps explain why enterprise apps become easy movement paths once an account is exposed. Security teams also underestimate how quickly “temporary” access becomes permanent when business processes are built around convenience rather than review. The result is not a hardened application, but a fragile identity estate wrapped around a business-critical platform. Current guidance aligns this with continuous access management, not one-time hardening, and the NIST Cybersecurity Framework 2.0 reinforces that identity governance must be maintained as an ongoing function. In practice, many teams discover the real exposure only after an audit finding, a failed offboarding event, or a suspicious integration account has already been abused.

How It Works in Practice

Securing an enterprise application means mapping every identity that can reach it, then deciding which of those identities actually needs standing access. For PeopleSoft and similar platforms, that includes human users, superuser administrators, service accounts, scheduled jobs, middleware connectors, and API integrations. The control objective is not just strong authentication, but evidence that each identity is tied to a business purpose, a named owner, and a review cadence. The Ultimate Guide to NHIs — Why NHI Security Matters Now is particularly relevant here because it highlights how often organisations lack full visibility into their service accounts and how frequently secrets remain valid after compromise notification. That is the operational reality security teams have to design around.

• Inventory every app identity, including batch jobs, API keys, and “shared” admin accounts.
• Remove standing privilege where possible and replace it with request-based access and approval.
• Use NIST Cybersecurity Framework 2.0 to anchor identity governance, access review, and logging as repeatable controls.
• Require owner-attested offboarding for users, vendors, and integrations when a role or contract changes.
• Rotate secrets on a defined schedule and after every suspected exposure, then verify that rotation actually occurred.

Operationally, this works best when IAM, application owners, and business process owners share the same access review process. It breaks down when the application depends on legacy shared credentials, hard-coded jobs, or undocumented custom integrations because there is no clean way to attribute or revoke access without disrupting production.

Common Variations and Edge Cases

Tighter identity control often increases operational overhead, requiring organisations to balance business continuity against the need to eliminate hidden privilege. That tradeoff is especially visible in enterprise applications with custom workflows, payroll cycles, or tightly coupled batch processing, where access changes can have immediate business impact. In those environments, best practice is evolving toward phased remediation rather than “rip and replace” change. Start with the highest-risk identities: privileged admins, integration accounts, and secrets embedded in scripts or config files. Then move toward finer-grained role cleanup and segregation of duties.

One common edge case is vendor or systems integrator access. Those accounts are frequently over-permissioned because they are easier to leave in place than to renegotiate, but that convenience creates a durable exception that outlives the project. Another is the shared emergency account, which may be justified for recovery but should be wrapped in PAM, tightly monitored, and reviewed after each use. Guidance from NHI Management Group suggests that the largest losses often come from accounts nobody thinks about during normal operations, not from the obvious admin console. In practice, teams should assume any long-lived account with broad application access will eventually become a control failure unless it is deliberately owned, reviewed, and rotated. This guidance tends to break down in heavily customised environments with undocumented dependencies, because access removal can cascade into outages before those dependencies are mapped.

Related resources from NHI Mgmt Group

• What do security teams get wrong about cyber resilience in identity-heavy environments?
• What do security teams get wrong about event based identity coordination?
• What do security teams get wrong about identity transformation programmes?
• What do security and compliance teams get wrong about document-free identity checks?