You are drafting an executive threat report and need to adhere to the Traffic Light Protocol (TLP). The report contains sensitive information about an ongoing vulnerability in a zero-day exploit that could cause irreparable damage if leaked. Which TLP color should be applied?
TLP:RED is strictly for the immediate recipient and cannot be shared further.
Why this answer
TLP:RED is used for information that cannot be shared outside of the specific recipients, which is appropriate for sensitive zero-day intelligence.