Which of the following is MOST likely to require an organization to update its business continuity plan (BCP)?

Successful BCP testing results confirm the plan's effectiveness, which would typically validate the current plan rather than necessitate a fundamental update.

Increases in information security risk trends might trigger updates to security policies or incident response plans, but not necessarily the entire BCP unless they lead to a major change in the business operating environment itself.

While changes in organizational leadership might lead to policy shifts, they do not inherently alter the fundamental business processes, critical systems, or recovery requirements that form the core of a BCP.

Major changes in the business operating environment, such as new products or services, acquisition of new systems, significant changes in infrastructure, or shifts in regulatory requirements, directly impact the critical assets, processes, and dependencies that a BCP covers. Such changes require a review and update to ensure the plan remains relevant and effective for business resilience.