DeepBrief is the long read strand of MediaBrief. Instead of reporting an announcement, these pieces sit with one company, one category or one shift and take it apart: what changed, why it changed and what it means for the people buying and selling attention. Most are built around a long conversation with a founder or chief executive. Thirty nine of the 48 pieces carry the DeepBrief label in the headline; the rest are related long reads filed in the same section. It has been running since 2 November 2022 and is still active.