Pedro Barbosa (@pedroysb) 's Twitter Profile
Pedro Barbosa

@pedroysb

Security Engineer at Google.
CTF player for the Epic Leet Team (@eltctfbr).

ID: 220231709

calendar_today27-11-2010 04:27:08

251 Tweet

485 Followers

184 Following

Pedro Barbosa (@pedroysb) 's Twitter Profile Photo

Parece ser um problema generalizado da educação e investimento em ciência como um todo, e não só no âmbito de cyber security e votação eletrônica.

Enrico Fregnan (@enfregnan) 's Twitter Profile Photo

Amazing news, our paper "First Come First Served: The Impact of File Position on Code Review" has been accepted at FSE! Congrats to all the authors Larissa Braz Gül Calikli Marco D'Ambros and Alberto Bacchelli ) A short summary of the paper in the thread below😁

Larissa Braz (@larissabrazb) 's Twitter Profile Photo

Happy to share that our paper "Software Security during Modern Code Review: The Developer's Perspective" has been accepted at FSE 2025! Congrats to the coauthor Alberto Bacchelli!! 🎉

Pedro Barbosa (@pedroysb) 's Twitter Profile Photo

-----BEGIN PUBLIC----- Get ready 🔥🔥 I'm so happy to share that for another year I could contribute to Google CTF by authoring and mentoring challenges in the crypto category 🔒🔑 Looking forward to seeing all the amazing teams working on them. -----END PUBLIC-----

Pedro Barbosa (@pedroysb) 's Twitter Profile Photo

🥳 We just released paranoid_crypto. The library checks for trivial weakenesses on crypto artifacts generated by black boxes (i.e. when we don't know how they were generated). Official call for contributions to be published soon. Joint work with Daniel Bleichenbacher.

Epic Leet Team (@eltctfbr) 's Twitter Profile Photo

Novo artigo em parceria com Mente Binária (ONG) ! É sobre XSLeaks! De Web! Como pediram! Confiram! Está bem legal! Autor: Luan Herrera mentebinaria.com.br/artigos/introd… Toda a produção da parceria está em epicleet.team/articles Se quer ler algo específico nos nossos artigos, comenta aí!

Steve Weis (@sweis) 's Twitter Profile Photo

Google releases Paranoid tool to detect well-known weaknesses in large amounts of crypto artifacts, like public keys and digital signatures by Pedro Barbosa and Daniel Bleichenbacher: security.googleblog.com/2022/08/announ…

Calle Svensson (@zetatwo) 's Twitter Profile Photo

Come watch the stream of our game hacking competition tomorrow, live from the Google office in London. It's going to be amazing! The top 8 teams from the Google #CTF have been reduced to 4 remaining teams in the fight for the grand prize!

Heather Adkins - Ꜻ - Spes consilium non est (@argvee) 's Twitter Profile Photo

Today we take you behind the scenes like never before, learn about the work Google's security experts do behind closed doors to keep billions safe every day. The HACKING GOOGLE docuseries is streaming NOW on YouTube → g.co/safety/Hacking…

Urs Hölzle (@uhoelzle) 's Twitter Profile Photo

If you're curious about what security teams actually do (and how Google got hacked in 2009), this is a very accessible video series that's both accurate and entertaining (that's hard to do!). Highly recommended. youtube.com/watch?v=aOGFY1… ⬇️

Epic Leet Team (@eltctfbr) 's Twitter Profile Photo

Olá pessoal! Para quem está no H2HC e gostaria de uma chance de entrar no ELT, vamos observar o CTF do evento pra selecionar novos integrantes. Aos interessados, se inscrevam no CTF e deem seu melhor. Pra quem não viu o link de inscrição ainda: h2hc.com.br/ctf/

Olá pessoal! Para quem está no <a href="/h2hconference/">H2HC</a> e gostaria de uma chance de entrar no ELT, vamos observar o CTF do evento pra selecionar novos integrantes. Aos interessados, se inscrevam no CTF e deem seu melhor. Pra quem não viu o link de inscrição ainda: h2hc.com.br/ctf/
Epic Leet Team (@eltctfbr) 's Twitter Profile Photo

Pessoal, passando pra lembrar dessa chance única de fazer parte do ELT! Começa no dia 25! Ainda não se inscreveu? O que está esperando?

Pedro Barbosa (@pedroysb) 's Twitter Profile Photo

Congratulations for the amazing research Larissa Braz. Very deserved and I'm really proud of you 🥰. Also congratulations to Alberto Bacchelli and ZEST friends that were part of this.

Esoj (@_esoj1) 's Twitter Profile Photo

Rodrigo Branco and I have observed that in some instances of major cloud providers, the userspace mitigation for spectre-BTI still leaves the victim exposed to attacks. Check out hyperbleed - Current state of spectre-BTI mitigations on cloud: blog.gris.dcc.ufrj.br/en/blog/2023-0…

<a href="/bsdaemon/">Rodrigo Branco</a> and I have observed that in some instances of major cloud providers, the userspace mitigation for spectre-BTI still leaves the victim exposed to attacks.  Check out hyperbleed - Current state of spectre-BTI mitigations on cloud:
blog.gris.dcc.ufrj.br/en/blog/2023-0…