Someone who intrudes gradually, stealthily, harmfully, or is alluringly dangerous regarding the rights, property, etc., of another person or of people: One night while Cathy was sleeping, she was suddenly awakened by an encroacher who threatened to kill her if she didn't give him her jewelry and money.

Once the new Iranian system of encroachers become operational, and the government's restrictive network goes into effect, ordinary Iranians will wake up to a more censored internet.