A mother, using the speakerphone function of the family's cordless telephone system, surreptitiously listened to a conversation between her daughter and her daughter's boyfriend in which a crime was discussed. The mother was permitted to testify against the boyfriend at his trial about what she overheard. We conclude that under the Washington privacy act, the conversation in question was a private one and the base unit of the cordless telephone was a device designed to transmit. We reverse [the decision of the lower court].

We have repeatedly held that the mere possibility that intrusion on otherwise private activities is technologically feasible does not strip citizens of their privacy rights.