phreaking
That causes exacerbation.
plural of passivism
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.
A lung disease, caused by exposure to cotton dust in inadequately ventilated working environments.
リスクにもかかわらず、彼は電話システムの構造を学び、時には無料通話をするために電話システムをクラッキングしたり探索したりする手法を独学した。
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