Which statement is true regarding information stored in an organization's email archive?

The statement regarding information stored in an organization's email archive that is true is that it can provide evidence in investigations. Email archives are designed to retain communications and data for legal and compliance purposes, making them valuable resources during investigations, legal disputes, or regulatory audits. The emails stored often include critical information such as correspondence related to transactions, policies, and other business communications. This makes them an important resource for uncovering facts, timelines, or decision-making processes relevant to an investigation.

The other options highlight common misconceptions or limitations about email archives. While IT staff may have access to the archives, they are typically accessible to other authorized personnel within the organization as well. The notion that emails must be deleted after a specific time can vary by policy and legal requirements; some organizations retain them indefinitely. Additionally, while many organizations implement encryption for security, it is not universally applied to all archives, making the statement about guaranteed encryption inaccurate.