Dumb phone with kill switches?

[Mtravel]

Thanks for your reply. I don't know if you have seen it but this corona hoax is perpetrated by bad governments. And they try to spy and harrass anyone who exposes their crimes against humanity. I thought Edward Snowden said they used to take battery out even on dumb phones when he worked for CIA/NSA. If Linux and Pinephone technical components are safe (and third party) then why to have those kill switches on it either? It sounds like more safe option even without the switches in comparison to some old basic phones with fixed firmware and OS like some Nokias or Siemens from 15 years ago or so. Nokia's ex-lawyer( kind of whistleblower) said they were contacted by NSA back in the old days about the NSA's policy to records all phone calls. But to record and listen phone calls is different than listening a phone that is not having a call atm. I wonder how they may hack the system if it's not having a call? Whether on Linux or some of those old dumb fixed OS's.