More likely it is just heavily integrated with internal google tooling like chubby and borg. I suspect they still use American Fuzzy Lop[1] for much of their f

More likely it is just heavily integrated with internal google tooling like chubby and borg. I suspect they still use American Fuzzy Lop[1] for much of their fuzzing even if they wrote some of it from scratch. The Linux Foundation's Core Infrastructure Initiative's[2] "Fuzzing Project" is more or less continuous integration running AFL[3] [1] http://lcamtuf.coredump.cx/afl/ http://lcamtuf.coredump.cx/afl/ [2] https://www.coreinfrastructure.org/grants https://www.coreinfrastructure.org/grants [3] https://fuzzing-project.org/ https://fuzzing-project.org/