mobile or landline? If landline is your phone capable of displaying Caller ID? If yes, can you check the firmware of your landline phone as Caller ID uses v23 p

mobile or landline? If landline is your phone capable of displaying Caller ID? If yes, can you check the firmware of your landline phone as Caller ID uses v23 protocol, so your landline has dialup modem abilities and anyone with access to your landline could remote control your landline phone. Had the data and time changed on my landline phone in my case, just someone showing off their full spectrum dominance! If landline has your phone company been hacked or your security services yanking your chain? If mobile, is your device rooted? Is you sim card hacked? Any component with a cpu may have the ability to independently use the hardware, so a sim card phoning home independent of the phone OS, it all depends on how the circuit board is designed. Your phone is listening and it's not paranoia (2018 https://news.ycombinator.com/item?id=28973345 https://news.ycombinator.com/item?id=28973345 LTE Phone Number Catcher: A Practical Attack against Mobile Privacy https://www.hindawi.com/journals/scn/2019/7425235/ https://www.hindawi.com/journals/scn/2019/7425235/ Not the link I was looking for but it will probably convey the same info which is your Decap of a Cell Phone SIM card [video] https://news.ycombinator.com/item?id=12674846 https://news.ycombinator.com/item?id=12674846 And dont forget the arm processor used for wear levelling purposes in (micro)sd cards, also another attack vector depending on how its wired.