As Bjorn leaves the office this day, Steffi tells him she overheard men starting to break in earlier that evening to steal documents. The men are later caught, and Bjorn is brought onto the witness stand in court to mention what he heard. This type of evidence is termed which of the following?

Domain 1: Security and Risk Management Practice Questions
Questions from the following topics are included in this domain:
Basics of security and risk management
    Differing data roles and responsibilities
    Identifying administrative, physical, and technical controls
    Ethics of security professionals
    Administrative policies, procedures, and guidelines
    Object categorization and classification
    Importance of security training