This group is being given insane levels of access to systems that can move world markets. Their names are public, and they're likely being targeted at all times by Mossad, GRU, MSS, and every other respectable intelligence agency who is doing its job. Since they're in their positions purely because Musk liked them they're likely wildly unqualified and know very little about opsec. So if they're not outright infiltrated it probably doesn't matter, all their devices are probably pwned several times over.