( < phone + freak, "telefon + friik")

olemus
telefonside häkkimine, näiteks
tasuta kaugekõnede saamiseks,
helistamiseks kellegi teise arvel,
arvutisüsteemide ründamiseks

Wiktionary:
the cracking or exploring of a telephone system, e.g. trying to get free calls or to discover special service numbers or other internal technical information

ülevaateid
https://owasp.org/www-pdf-archive//OWASP_BeNeLux_2018_Ralph_Moonen_-_Weaknesses_in_our_voice_communications_network_-_from_Blue_Boxing_to_VoLTE_compressed.pdf

https://dl.packetstormsecurity.net/hitb04/hitb04-emmanuel-gadaix.pdf

https://en.wikipedia.org/wiki/Phreaking

https://en.wikipedia.org/wiki/Phreaking_box

https://en.wikipedia.org/wiki/Category:Phreaking

https://www.symantec.com/connect/blogs/phreaking-back-21st-century-style

tõrje
https://nexusip.com/security/phreaking/

vt ka
- kiirgusepüük
- kuvarikuulamine
- netitelefon, turvalisus