Which of the following responsibilities would most likely compromise the independence of an IS auditor?

The responsibility that would most likely compromise the independence of an IS auditor is participating in the design of the risk management framework. When an auditor is involved in designing a framework, they may face conflicts of interest, as their role requires them to later assess and evaluate the effectiveness of the same framework they helped create. Independence is a crucial principle for auditors, as it ensures that their assessments and findings are impartial and free from any bias. By participating in the design phase, the auditor's ability to remain objective and provide unbiased evaluations could be severely compromised, leading to questions regarding the integrity of their audit work and the reliability of their conclusions.

In contrast, advising on different implementation techniques, facilitating risk awareness training, or performing a due diligence review do not inherently compromise an auditor's independence to the same extent. These activities typically involve providing guidance or support without direct involvement in the creation of policies or frameworks, allowing the auditor to maintain a more objective standpoint in their assessment and evaluation roles. Thus, the involvement in designing the risk management framework presents a potential conflict of interest that is less likely to arise from the other responsibilities mentioned.