A mechanism is disclosed for protecting the privacy of communication content bymeans of a synchronized noise insertion process operated by counterpart sending and receiving devices. In send mode, a synchronized noise pattern is introduced by a sending device onto a source content, rendering the source content unreadable (or at least partially obfuscating the source content so as to inhibit interception of the content); and in receive mode, a corresponding pattern is introduced 180-degrees out of phase so as to effectively subtract the synchronized noise pattern and yield the original source content. In such manner, communication privacy is acheivable without encrypting, encoding or transforming the source content at the sending or receiving device.