Are Your Admin Accounts a Key Security Weakness?

Most nonprofits and associations have strengthened their financial controls over the years, implementing segregation of duties, dual approvals, Positive Pay, and modern accounting systems. On paper, these controls often look robust.

Yet they frequently rely on one critical assumption: that no single account can override or bypass the system. In practice, this assumption commonly fails at the administrative level.

This issue sits at the intersection of cybersecurity and financial controls. A breach that begins as a cybersecurity incident (such as phishing or credential theft) can quickly become a financial control failure, resulting in unauthorized payments, payroll fraud, or misstated records. Addressing admin access effectively requires viewing it through both lenses: not treating it as solely an IT problem or solely an accounting problem.

The Core Vulnerability: Over-Privileged Admin Accounts

Administrative access in financial and operational systems often grants users broad capabilities, including the ability to:

• Create or modify vendors, donors, and banking details
• Reset credentials and impersonate other users
• Alter approval workflows and user permissions
• Modify or limit audit logs and system visibility

Whether through phishing, credential theft, MFA fatigue, or insider misuse, if a single admin account is compromised, multiple layers of control can be bypassed quickly and quietly.

What Are Important Consideration for Organizations with Disparate Systems?

Many nonprofits operate multiple separate systems — for example, one platform for payables, another for payroll, a donor management system, and yet another for grant reporting or financial reporting. In these environments, the risk is often magnified because administrative access must be reviewed and controlled across all systems, not just the primary accounting platform.

An admin in the payroll system may be able to change direct deposit information for employees, while an admin in the AP system can modify vendor banking details. If privileged access is not tightly managed and monitored in every system, a compromise in just one area can still lead to significant financial loss or data manipulation.

How Does Compromised Admin Access Play Out in Practice?

Payment processing remains one of the most common and costly examples. Once an admin account is compromised, the bad actor can quickly take action:

• Add or modify a vendor and update banking details
• Reset another user’s password to generate “independent” approvals
• Alter or bypass approval workflows
• Process and release the payment
• Transmit the payment file to the bank

The system then records a clean, fully authorized transaction — even though one actor controlled the entire process.

Similar risks exist in payroll direct deposit changes, expense approvals, donor record updates, and grant reporting adjustments.

Why Traditional Controls Often Break Down

• Dual approvals can be undermined if an admin can impersonate users or modify workflows.
• Positive Pay loses much of its protective value when compromised systems automatically transmit “valid” payment files.
• Multi-factor authentication (MFA) is essential but not foolproof — phishing, MFA fatigue, and session hijacking continue to succeed.

The central question every organization should ask is: can a single privileged account in any of our systems make material changes or move funds without meaningful independent oversight?

If the answer is “yes” in any key system, elevated risk remains.

What Are Practical Steps to Strengthen Admin Access Controls?

You don’t need to replace your current systems, but you should deliberately limit administrative power and build real monitoring. Consider the following:

1. Minimize and actively monitor admin access across all systems – Reduce the number of privileged users in every platform (AP, payroll, donor management, etc.). Treat admin accounts as high-risk and monitor critical activities such as permission changes, password resets, vendor updates, and user modifications.
2. Separate administrative power from financial authority – Admin users should generally not approve payments, change banking details, or release funds. Require these actions to be performed by separate, non-admin roles.
3. Strengthen vendor and banking change procedures – Require independent, out-of-system verification (e.g., phone or secure email confirmation with a known contact) for all new vendors and material banking updates. In addition, configure the system to send independent notifications (outside the normal approval workflow) to a designated person whenever banking details are changed. These alerts should go to someone who does not have admin rights in the system
4. Reevaluate automated controls like Positive Pay – Avoid relying solely on fully automated file transmission. Introduce independent review of payment files or add bank-side controls and filters.
5. Perform regular independent access reviews – Conduct quarterly reviews of user access rights across all systems — especially privileged accounts — by someone independent of the admin functions. Focus on role appropriateness and recent activity.
6. Maintain independent supporting evidence – Do not rely exclusively on system-generated reports. Regularly review new vendors, banking changes, unusual transactions, and payroll modifications using outside documentation.

Bottom Line

Modern financial systems deliver welcome efficiency gains, but they also concentrate significant power in relatively few accounts. When administrative access is compromised — particularly across multiple disparate systems — even strong controls can be bypassed, often without immediate detection.

Effective internal control is not measured by the number of controls in place, but by whether any single privileged account can act without meaningful, independent oversight.

GRF Can Help

Our team understands both sides of this challenge: the accounting/financial controls perspective and the cybersecurity risks that threaten them. We regularly help nonprofits and associations identify and strengthen these exact vulnerabilities through targeted assessments.

If you would like an independent assessment of your admin access controls, payment processes, payroll systems, or overall financial control and/or cybersecurity environment, we would be happy to assist. Reach out to us. We can tailor a practical review that fits your organization’s size, systems, and budget.

Melissa Musser, CPA, CIA, CITP, CISA

Partner and Director, Risk & Advisory Services