Gabriel H. Nunes

@nunesgh
511 Followers
1,079 Following
572 Posts

Computer Scientist and Physicist
Cientista da Computação e Físico

Toots in English and Portuguese
Toots em Inglês e Português

#FormalMethods | #QuantitativeInformationFlow (#QIF)
#ResponsibleComputing (#Privacy | #Fairness)

🇧🇷 | 🇦🇺 | 🇺🇳 | 🏳️‍🌈
#AntiFascist | #BLM | #NoToWar
#MakeFascistsAfraidAgain
#fedi22

🏙️ Header: Belo Horizonte, Brazil

ℹ️ Most toots automatically deleted in one week

⚠️ Blocking: threads.net and bsky.brid.gy

openpgp4fpr:5B83BB14A5A9313005E027A37B72A4A3C50B88EE

Website (EN)https://nunesgh.com/about
Website (PT)https://nunesgh.com/sobre
Keyoxidehttps://nunesgh.com/keyoxide
Pronounshe/his | ele/dele
Gabriel H. Nunes6h ago
Philippe Smet14h ago
By now, you have seen the Earth image by the #Artemis crew at least a hundred times. In this annotated version, several #optics effects are highlighted. It also shows how fragile planet #Earth is, with a super thin #atmosphere protecting us from the harsh vacuum of space.
Let's protect it.
Gabriel H. Nunes1d ago
Ω 🌍 Gus Posey1d ago
#Mastodon isn't difficult because of what you have to learn, it's difficult because of what you have to unlearn.
Gabriel H. Nunes1d ago
David Ho1d ago

I will say this again: Science isn’t just something that nerds do, it’s the foundation of the modern world.

It’s why this app exists. It’s why child mortality rate isn’t 50% anymore. It’s how we’re able to launch people to the moon. It’s how we’re able to grow food that feeds half the world’s population.

https://www.nature.com/articles/d41586-026-01105-7

Massive budget cuts for US science proposed again by Trump administration

Budget proposal would also curb federal payments for scientific publishing.

Gabriel H. Nunes1d ago
GitHub Security Lab1d ago
A zero-permission Android app could read every photo, video, voice note, and document in your Signal chats. Downloaded Signal apk directly from Signal.org? You were vulnerable. https://securitylab.github.com/advisories/GHSL-2026-102_Android_SignalApp/
GHSL-2026-102: Unauthorized exfiltration of decrypted attachments in Signal through Intent redirection

Versions >= v6.38.0 and < v8.4.2 of the website flavor of Signal for Android (distributed at https://signal.org/android/apk) allows another installed app without any permissions to exfiltrate decrypted attachments (photos, videos, documents, voice notes) by exploiting Intent redirection, potentially exposing sensitive user data.

GitHub Security Lab
Gabriel H. Nunes1d ago
Fedilab Apps1d ago
#Fedilab is now 9 years old. Thank you to all the people who contributed and keep contributing to the project. Old users know it was called Mastalab. Thank you so much for your trust and support.
Gabriel H. Nunes1d ago
Brent Toderian2d ago
One of the biggest disinformation campaigns ever applied to cities involves the constant claims that “driving pays its way.” It’s actually MASSIVELY subsidized, while things like walking, biking, public transit & supportive housing for the unhoused actually SAVE PUBLIC MONEY. HT to the classic Andy Singer cartoon. #UrbanTruth
Gabriel H. Nunes1d ago
Kim2d ago
In honour of the day you all did those despicable things to Jesus I am posting my favourite @warandpeas comic
Gabriel H. Nunes2d ago
Mark Wyner Won’t Comply 2d ago

EDIT: @rysiek has an explanation about the shady things LinkedIn is doing. He explains it far better than I did:

https://mstdn.social/@rysiek/116337205401370428

LinkedIn/Microsoft are definitely NOT to be trusted. But I realize phrasing is important. So I’m moderating my own post. I apologize if this was misconstrued.

But I subjectively believe there is a high likelihood that LinkedIn is doing nefarious things with this data.

#BrowserGate #LinkedIn #InfoSec #OpSec #Privacy #YouAreTheProduct #Microsoft

Gabriel H. Nunes2d ago
Daveography 🇨🇦2d ago

I don't think nearly enough attention has been given to how amazing astronaut Jeremy Hansen's mission patch is.

Designed by Henry Guimond of Sagkeeng First Nation in Manitoba.

Read more about it here:
https://www.asc-csa.gc.ca/eng/missions/artemis-ii/jeremy-hansen-patch.asp

#ArtemisII #JeremyHansen #HenryGuimond #Sagkeeng #AnishinaabeArt #Indigenous #IndigenousArt

Gabriel H. Nunes2d ago
Cloudflare3d ago
Eight years ago, we launched 1.1.1.1 to build a faster, more private Internet. Today, we’re sharing the results of our latest independent examination. The result: our privacy protections are working exactly as promised. https://blog.cloudflare.com/1111-privacy-examination-2026/
Our ongoing commitment to privacy for the 1.1.1.1 public DNS resolver

Eight years ago, we launched 1.1.1.1 to build a faster, more private Internet. Today, we’re sharing the results of our latest independent examination. The result: our privacy protections are working exactly as promised.

The Cloudflare Blog