Exists in digital limbo, unreachable through normal Bureau channels. Contains fragmented and potentially corrupted competitive data. Marked with a distinctive black ink stamp that resists digital scanning. Access requires Level 7+ security clearance - the highest in the Bureau's hierarchy. The data within shifts and reforms each time it's accessed, never presenting the same complete picture twice.

Dead Letters represent the Bureau's darkest secrets - players whose records contain information that could compromise the organization if fully revealed. Accessing a Dead Letter is technically a clearance violation, but ambitious agents with high clearance sometimes risk it to uncover hidden competitive histories or discover which players have been 'quietly removed' from the active roster.