Initial analysis from those who claim to have accessed the file suggests it contains the "crown jewels" of Meta’s backend engineering:
Security researchers warn that source code leaks often serve as a "full map for hackers," allowing them to find vulnerabilities that are impossible to spot from the outside. The Impact on the Go Ecosystem
Many top tech firms have strict policies against hiring engineers who have "contaminated" their knowledge with leaked code.
Use of trade secrets can result in severe litigation.