Not really sure about the headphone jack blocker; I'm not aware of an OS where the sound source can't be trivially switched in software, even when headphones ar

Not really sure about the headphone jack blocker; I'm not aware of an OS where the sound source can't be trivially switched in software, even when headphones are plugged in. The likelihood is that if an attacker has the ability to record audio, they also have the ability to bypass this device.