A response to recent reporting in Germany, in service of clarity and accountability: First, it’s important to be precise when it comes to critical infrastructure like Signal. Signal was not “hacked” — in that our encryption, infrastructure, and the integrity of the app’s code was not compromised. However, sophisticated attackers have engaged in a harmful phishing campaign, posing as “Signal Support” by changing their profile display name and using social engineering to trick people into handing over their credentials — information that allowed these attackers to take over some targeted Signal accounts. This is something that plagues any mainstream messaging app once it reaches the scale of Signal, but we know how high the stakes are given the trust people place in us. In the coming weeks, you’ll see us rolling out a number of changes to help hinder these kinds of attacks. Because we don’t collect user data, what we know about these attacks comes from the victims of phishing. And from what victims have told us, the attacks followed a broad pattern: after tricking people into revealing their Signal credentials, attackers then used those credentials to take over their account and also frequently changed the associated phone number. Because such a change results in de-registering your Signal accounts, attackers prepared people for this by telling them that being de-registered was intended behavior, and that all they would need to do is “re-register,” or, create a new account. When they moved to create a new Signal account — one that was now decoupled from their hijacked account — the victims thought they were logging back in to their primary account. As a result, many didn't notice the takeover. The compromised accounts were then weaponized to target the victims' contact lists by posing as the owners of the account. We understand the trust that people put in Signal, and how devastating this kind of social engineering can be. While it’s true that all messaging platforms are susceptible to scammers and phishing that betrays people’s trust and convinces them to “unlock the front door” where no backdoor exists, we are looking to do everything we can to help people avoid and detect such scams. For the time being, please stay vigilant against phishing and account takeover attempts. Remember that no one from Signal Support will ever send you a message request or ask for your registration verification code or Signal PIN. For an added layer of protection, you can enable Registration Lock in your Signal Settings (Account -> Registration Lock).

Join us on 1 June 2026 in Lisbon for the NOVA IPSI Annual Lecture. A full day dedicated to Intellectual Property and Sustainable Innovation, featuring leading academic experts from across Europe. novalaw.unl.pt/en/nova-ipsi-… #IntellectualProperty #Copyright #Sustainability

A Alemanha tornou os formatos abertos obrigatórios para as instituições públicas. Em Portugal, a Lei das Normas Abertas e o RNID há muito que o fazem, mas não são cumpridos. Bom dia da Liberdade Documental #DocumentFreedomDay, aqui assinalado pela @ANSOL: ansol.org/noticias/2026-03-2…

Hoje a maioria Ch/PSD/CDS mandou um recado claro aos jovens trans: fiquem caladinhos, não vão falar com um professor, familiar ou amigo. O vosso questionamento é um delírio. Muito menos procurem médicos porque os deputados sabem melhor o tratamento de que precisam: a humilhação.

É esta pessoa que Luís Montenegro e o PSD se preparam para nomear para o Tribunal Constitucional

Um aspecto a salientar na audição pública de ontem na Assembleia da República, promovida pelo @BlocoDeEsquerda: nenhuma das entidades ou cidadãos que se pronunciaram defendeu a medida de verificação de idade presentemente em discussão. Pelo contrário, as críticas foram inúmeras.

FRIDAY=SHARING & CARING! Portuguese civil society puts forward a legislative proposal for a #SecondaryPublicationRight & obligation. Eduardo Santos, KR21 Portugal coordinator, recaps the 5 Feb Lisbon #SPR conference, co-organised by KR21. 🔗 knowledgerights21.org/news-s… #Science4EU

Hello, world! 👋 From now on, Mastodon is our preferred social media channel. It's an open source, decentralised platform – not controlled by tech giants. Follow us here: fosstodon.org/@libreoffice

Lembrando rapidamente três episódios relativos ao novo Ministro da Administração Interna, cuja nomeação parece estar a ter um estranho consenso (ou quase). 🧶 1/4

For those attending GLAM Wiki 2025 in Lisbon, you are invited to join us tomorrow (16h15) for the session "Mind the gap: learning how to avoid the 21st century black hole through better laws", by @KR21org . See you tomorrow! #GLAMWikiPT #GLAMWiki #GLAM #copyright

Novidades #ChatControl! 🧵 Bruno Gonçalves (@b_goncalvesb), eurodeputado do PS, responde às muitas mensagens de cidadãos que têm chegado aos eurodeputados. O seu post contra o ChatControl salta directamente para o topo do Reddit português: old.reddit.com/r/portugal/co… 1/6

SapoTek: «Associação D3 pretende que o Governo explique constitucionalidade do #ChatControl» tek.sapo.pt/artigos/associac…

#ChatControl explicado: youtube.com/watch?v=xPC56I1n…

A propósito, o @govpt ainda não explicou como é que este sistema automatizado de varrimento das mensagens e ficheiros que os cidadãos enviam pela Internet cumpre as salvaguardas da nossa Constituição sobre privacidade e inviolabilidade das comunicações, e por que razão o apoia.

História real deste fim de semana no SNS Um familiar com um problema na área da saúde visual. Disse-lhe "liga SNS 24 pela referenciação mas HGO nunca teve urgência oftalmologia ao fds. É santa Maria ou são José que tem urgência metropolitana, depende do fds" 🧵🧵

#FridayIsForSharing 📢 🇵🇹 Portugal’s unique choice in copyright rules for science & research creates absurd barriers to investigation & innovation, highlights @EdSantos754. 📄Read more (PT): tek.sapo.pt/opiniao/artigos/…

Um artigo meu no SapoTek: «Portugal: o país onde a Ciência precisa de pedir licença» @KR21org tek.sapo.pt/opiniao/artigos/… #copyright #ciencia

Reminder that Collective Shout is a radical religious group that wants broad censorship across media: archive.md/LDJGe Vice's owner Savage Ventures is trying to scrub this article from the internet "due to the controversial subject matter, not journalistic complaints."