Which of the following are considered critical information? Select all that apply.

Critical information encompasses data that, if compromised or disclosed, could negatively impact an organization's ability to perform its mission or could pose a risk to national security.

Backorders affecting readiness are a prime example of critical information because they directly influence an organization’s capacity to maintain operational effectiveness. If backorders are not managed or disclosed properly, it could hinder preparedness and operational readiness, making it essential to safeguard this information.

In contrast, social media posts generally do not constitute critical information in a security context, as they often lack the direct operational implications that backorders present. IT system architecture could be considered sensitive, but without additional context indicating it impacts readiness or security, it may not be classified as critical information. Casual conversations typically don’t contain information that could critically impact operations unless they reveal sensitive details, which isn't the standard for all such discussions.

Therefore, in this context, backorders affecting readiness stand out as the clear selection when identifying critical information necessary for safeguarding operational capabilities.