compromised

Devices (e.g. computers, tablets and smartphones) can be compromised by…

  1. malware infection
  2. giving your device to a nogoodnik
  3. falling for scams
We should note here that these types of warning messages will (more than likely) be a bluff, a ruse, a subterfuge, a scam.
subterfuge
noun
sub·​ter·​fuge ˈsəb-tər-ˌfyüj 
Synonyms of subterfuge
1
: deception by artifice or stratagem in order to conceal, escape, or evade
2
: a deceptive device or stratagem

Source: Merriam-Webster

Rule of thumb

When you feel threatened in any way, power off your device and get some good help 🥚