Which situation presents the greatest information security risk for an organization with multiple processing locations?

The situation that presents the greatest information security risk for an organization with multiple processing locations is the existence of poor change management procedures due to a lack of oversight. This is because change management processes are essential for managing the introduction of new systems, updates, and changes to existing technologies, ensuring that these modifications do not introduce vulnerabilities or lead to unintended consequences.

Ineffective change management can result in inconsistent configurations across various processing locations, leaving some systems more vulnerable to attacks. It can also lead to insufficient testing or validation of changes, increasing the likelihood of security issues going unnoticed. Without proper oversight, there can also be a lack of accountability and documentation regarding what changes have been made, making it challenging to trace issues or breaches back to their source. This can create a chaotic environment where the security posture of the organization is compromised, as changes may be made without a clear understanding of the potential risks or impacts on data integrity and protection.

In this context, the other options, while they can contribute to security risks in general, do not specifically highlight the systemic vulnerabilities introduced by a lack of structured oversight in change management, which is critical for maintaining information security across multiple processing locations.