After PGP, Phil Zimmermann focused on building secure and private telephony with the ZRTP protocol.

Today, you can download Silent Phone from most app stores and enjoy the privacy benefits that it offers.

Learn more by listening to S14 E15 of the Bitcoin Takeover podcast 🎧

#pgp #philzimmermann #silentphone #zrtp #privacy #security #podcast #bitcoin #bitcoinpodcast #bitcointakeover #bitcointakeoverpodcast #btctkvr https://video.nostr.build/06aa3537dad4d86044066ee62b22b92d0d3b693c3ab05b032b37cb71aea255f5.mp4