Signal president Meredith Whittaker is prepared to withdraw the privacy-focused messaging app from Australia — saying she hopes it doesn’t become a “gangrenous foot” by poisoning its entire platform by forcing it to hand over its users’ encrypted data to authorities.
Ms Whittaker says Signal would take the “drastic step” of leaving any market where a government compelled it to create a “backdoor” to access its data, saying it would create a vulnerability that hackers and authoritative regimes could exploit, undermining Signals’ “reason for existing”.
Pressure has been mounting on Signal and other secure messaging platforms. ASIO director general Mike Burgess has urged tech companies to unlock encrypted messages to assist terrorism and national security investigations, saying offshore extremists use such platforms to communicate.
Threema is a good option. Not an easy option, but a good one. It uses the Signal protocol, but your private key stays on your device, and you manaage which users you trust to save their public key for communicating with them yourself, including giving three levels of verification for (1) if it’s a random person and you have no way of verifying who they are, (2) if it’s a person whose ID matches someone in your address book, and (3) if it’s someone you’ve met in person and scanned a verifying QR code.
Is it available for both smartphone ecosystems?
https://apps.apple.com/us/app/threema-the-secure-messenger/id578665578
https://play.google.com/store/apps/details?id=ch.threema.app