The Russians are paying $1.5M for working Signal exploits, $2.5M for Android. Much more than 'competition'. They apparently care about something ... Question is, what? Such a setup might be used by Ukrainian government/military comms.
Clients: Only Russian (private/government).
Interestingly, they pay also for working exploits on electric vehicle charging stations. No price listed. In your opinion, why would you want to hack such a thing if you were a gov/mil entity? https://grugq.substack.com/p/russian-0day-thirst-traps