SignalAug 9, 2024

We're aware of reports that access to Signal has been blocked in some countries. As a reminder, Signal's built-in censorship circumvention feature might be able to help if your connection is affected:

Signal Settings > Privacy > Advanced > Censorship circumvention (on)

Show threadSignalAug 9, 2024
We have already started working on more advanced censorship circumvention techniques, but in order for these efforts to be most effective we need the big companies who are dragging their feet on moving away from plaintext SNI headers to start taking this problem more seriously.
Show threadSignalAug 9, 2024
Solutions like Encrypted Client Hello (ECH) remove the plaintext server name from the TLS handshake, which makes it far more difficult for hostile ISPs to block access to the sites and services you care about — but this isn’t widely supported yet. We hope that starts to change.
Show threadDeirdre Connolly¹Aug 9, 2024
@signalapp It will see more adoption when the RFCs are finalized, they are currently technically not quite yet
Show threadNikita Puzyryov
@durumcrustulum @signalapp last autumn Cloudflare did roll out ECH basically for everyone. Here's the announcement: https://blog.cloudflare.com/announcing-encrypted-client-hello But quickly had to pull the plug: https://community.cloudflare.com/t/early-hints-and-encrypted-client-hello-ech-are-currently-disabled-globally/567730
Encrypted Client Hello - the last puzzle piece to privacy

We're excited to announce a contribution to improving privacy for everyone on the Internet. Encrypted Client Hello, a new standard that prevents networks from snooping on which websites a user is visiting, is now available on all Cloudflare plans.

The Cloudflare Blog
Aug 9, 2024 at 7:15pmWeb