After all, revolution is just another puzzle

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Across
  1. 2. Signal triggered when a security threat is detected
  2. 4. Device used to arm or disarm the system using a code, key fob, or card
  3. 5. Faking a device identity to gain unauthorized access
  4. 6. Device that signals an alarm with audible and visual alerts
  5. 8. Technology that protects data from interception
  6. 10. The process of improving a device by fixing issues or adding new features
  7. 11. Ukrainian manufacturer behind the world’s first wireless Grade 3 security system
  8. 12. Security system supporting both wired and wireless devices
Down
  1. 1. Wireless communication technology enabling secure device interaction
  2. 3. The process of confirming an alarm event using visual or audio evidence
  3. 5. Adjustable parameter defining a detector’s response level
  4. 7. The process of connecting devices from different systems into a unified security setup
  5. 9. Essential resource required to keep a device operational
  6. 12. The central unit of a security system