If NSO (a small group of engineers) can monitor an iPhone with zero click, knowing only the phone number, including that of high rank officials, what do you thi

If NSO (a small group of engineers) can monitor an iPhone with zero click, knowing only the phone number, including that of high rank officials, what do you think of capabilities of state-level actors?! Yes, anything connected can be recorded, probably by dozens of organizations. These capabilities are probably kept extremely secret. We will not know much about them until perhaps decades later.