Notices by Signal (signalapp@mastodon.world)

Signal is open source, so our code is regularly scrutinized in addition to regular formal audits. We also constantly monitor security@signal.org for any new reports, and we act on them with quickness while also working to protect the people who rely on us from outside threats like phishing with warnings and safeguards.

This is why Signal remains the gold standard for private, secure communications. 5/

Phishing isn’t new, and it’s not a flaw in our encryption or any of Signal’s underlying technology. Phishing attacks are a constant threat for popular apps and websites. 3/

In order to help protect people from falling victim to sophisticated phishing attacks, Signal introduced new user flows and in-app warnings. This work has been completed for some time and is unrelated to any current events. If you’re interested in learning more, this WIRED article from February 19th (over a month ago) goes into more detail:
https://wired.com/story/russia-signal-qr-code-phishing-attack/ 4/

One piece of misinfo we need to address is the claim that there are ‘vulnerabilities’ in Signal. This isn’t accurate. Reporting on a Pentagon advisory memo appears to be at the heart of the misunderstanding: https://npr.org/2025/03/25/nx-s1-5339801/pentagon-email-signal-vulnerability. The memo used the term ‘vulnerability’ in relation to Signal—but it had nothing to do with Signal’s core tech. It was warning against phishing scams targeting Signal users. 2/

Right now there are a lot of new eyes on Signal, and not all of them are familiar with secure messaging and its nuances. Which means there’s misinfo flying around that might drive people away from Signal and private communications. 1/

Sometimes one way to say "thank you" just isn't enough, so merci, danke *and* bedankt 🇧🇪

"We have ceded so many of the core operations of our lives and institutions to tech, we must recognise that strong encryption isn’t the enemy of security — it *is* security." - Signal President
@Mer__edith for the Financial Times on the war on encryption

https://www.ft.com/content/a934150f-e0f5-4e75-a2d1-a3671ea52ca0

Our position remains clear. We will not back down on providing private, safe communications. We join with other encrypted messengers pushing back on the UK's flawed Online Safety Bill.

It's always an honor to Finnish in first place. Kiitos, 🇫🇮!

Coming soon: When you add a linked device (Desktop or iPad), bring your whole chat history + last 45 days of media. The transfer process is end-to-end encrypted & completely optional.

Don't want to leave the past behind? We leave you to your own devices.

https://signal.org/blog/a-synchronized-start-for-linked-devices/

Bedankt 🇳🇱!

A big heartfelt thank you from all of us at Signal to every person who has ever used Signal, gotten your friends to make the switch, and donated to support our work. It is truly an honor to build Signal for you. 💙

Signal is not for profit, which means we stay focused on building privacy-preserving tech, not appeasing advertisers or investors.

And as a nonprofit, we exist because of your support.

Signal.org/donate

In-app: Settings > Donate
We accept DAF, stocks, and cryptocurrency.

For the Signal enthusiasts in your life :)

https://shop.signal.org/

There are lots of ways to support Signal.

- Go to http://Signal.org/donate. We accept DAF, stocks & cryptocurrency. We even accept checks & cash for the low-tech among us.

- Donate in the app: Settings > Donate to give or give on behalf of a friend.

Thank you for using Signal!

New for Android: Chat folders to organize your conversations into customizable folders.

See unread messages, filter 1-on-1 and group chats, and keep work chats separate to clock what's happening after you clock out.

Settings > Chats or long-press any chat

It costs around $50 million every year to ensure Signal is robust and available all over the world for anyone whenever they need it.

And as a nonprofit, that money comes from all of you; the people who believe that we all deserve a place to speak freely.

https://signal.org/donate/

We’ve improved private group video calls in Signal with new features, incl. call links.

Create a link that anyone on Signal can use to join a group call *without* having to join a Signal group chat first

+ raise hand, emoji reactions, calls tab, & more
https://signal.org/blog/call-links

Signal is blocked in several countries but you can set up a proxy server to help people access Signal no matter where they live. Here’s how:

https://signal.org/blog/proxy-please

Thank you for helping keep Signal available for everyone who needs it.

To share your proxies use #SignalProxy

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.