Phreak

Phreak (pronounced freek)

(1) Illicitly to tamper with or connect to various systems using telephones (in the sense of phone phreaking.

(2) To act as a phone phreak.

1972: An altered spelling of freak, applied by and to the phone phreaks, constructed by blending the ph of phone with freak.  Phone is from the Ancient Greek φωνή (phōnḗ) (sound).  Freak was first used circa 1560 in the sense of a "sudden change of mind or something done on a whim" and is of uncertain origin but thought probably from a dialectal word related to the Middle English frekynge (capricious behaviour; whims) and friken & frikien (briskly or nimbly to move) from the Old English frician (to leap, dance) or Middle English frek (insolent, daring) from the Old English frec (desirous, greedy, eager, bold, daring).  The ultimate root may be the Proto-Germanic frekaz & frakaz (hard, efficient, greedy, bold, audacious) in which case, it would be related to the phreak as a noun.  Related were the Old High German freh (eager) and the Old English frēcne (dangerous, daring, courageous, bold).  In linguistics, words like phreak are known as a sensational spelling and the trend continued in the post-web world from the 1990s onwards with creations such as phat and phishing.  Phreak is a noun & verb, phreaker is a noun and phreaked & phreaking are verbs; the noun plural is phreaks.

The phone phreakers

Digilog Systems Telecomputer II (315), circa 1976, a briefcase-housed acoustic coupler.

Phone phreaking was a term coined to describe the activities of the sub-culture of people who explored and exploited public telephone networks.  The term first referred to groups which, since the late 1950s, had reverse engineered the analogue system of audio tones used to route long-distance calls.  By re-creating these tones, phreaks could switch calls from the handset, allowing free calls to be made around the world; this at a time when even local calls could cost money and long distance or international calls could cost hundreds of dollars per hour.  Electronic tone generators known as blue boxes soon became available, making phreaking possible even for those without much technical knowledge.  This early aspect of phreaking effectively ended by the 1980s as most phone networks switched from acoustic tones to digital computer systems.  The phone phreaks are best remembered for their early hacks into the big mainframes of operations like NASA, the Pentagon and the CIA.  The phreaks were pleased to find a military mainframe might be in a secure facility with industrial strength air-conditioning and power supply systems with armed guards on the doors yet be connected directly to the public telephone network.

The idea of phone phreaking has survived phonetically as the phone freak-out; there are are public freak-outs and private freak-outs.