phreak

/friːk/
noun
  1. A person who explores or exploits telephone systems, especially in the early days of hacking and computer culture.
    • In the 1970s, a phreak could make free long-distance calls using homemade devices.
    • The movie showed a young phreak who hacked into the phone company's network.
    • Many early computer hackers started out as phreaks, learning how phone systems worked.
verb
  1. To hack or manipulate a telephone system, especially to make free calls or explore the network.
    • They used to phreak payphones with a simple whistle.
    • The teenager was caught trying to phreak the local telephone exchange.
    • He learned to phreak by studying the tones used by phone companies.
Synonyms
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