
AppSec by design. Secure #SDLC through culture, strategy & technology. @BSidesKrakow @CyberSecGames @codesnconseqs https://xitter.cf/t.co/VN5dkbIHBW
🇧🇷 🇵🇱 🌎
Joined May 2009
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#AppSec não é ferramenta, checklist ou modinha.
É pessoas, processos e tecnologia.
A Pós AppSec é pra quem já cansou do básico e quer jogar no nível sério.
🛡️ Segurança de Aplicações
⚙️ #DevSecOps de verdade
🧠 Mentalidade, não buzzword
Matricule-se ava.cecyber.com/loja/pos-app…
Speaking of the devil, now it's Tailscale's turn 😂
Go to tailworm.com/ to check your setup
‼️ Tailscale SSH Flaws Could Let Hackers Gain Root Access Across Servers
Details: cybersecuritynews.com/tailsc…
A new security report warns that Tailscale SSH has flaws that could let a hacker move from one compromised device to root access on other servers. Tailscale SSH lets approved devices log in to each other over a private network. The report lists 11 findings in five groups.
They cover Tailscale’s SSH server, its serve and app connector features, the DERP relay client, and headscale, an open-source server that manages Tailscale networks.
The researcher tested Tailscale 1.104.2 and headscale 0.29.5 between October 22 and October 24, 2026. The most serious group involves Tailscale SSH. Its SSH server runs inside tailscaled, a background program with full root privileges on the machine.
#cybersecuritynews
Readers added context they thought people might want to know
The flaws require an already-approved device in the Tailscale network with SSH rules permitting access/forwarding; they enable post-compromise lateral movement and escalation inside the tailnet, not unauthenticated remote access from outside.
tailworm.com
brandefense.io/security-news/…
tailscale.com/security-bulle…
x.com/mmaunder/statu…
Cássio B. Pereira | AppSec retweeted
The #BSidesKraków #Hacker Club is coming!
A space for the #community of #hackers and curious minds to #meet #learn #break and #fix things and #build stuff together.
📍Kraków - Świętego Filipa 23, 1º floor, room 3
🚀Opening: November 1st
Join the club: bsideskrakow.pl/hacker-club
Cássio B. Pereira | AppSec retweeted
#BSidesKrakow is already in the past, and history. So #BSidesKrakow 2027 is already being planed, so we have already #CFP and registrations open! Check them out buytickets.at/securitybsides… sessionize.com/bsides-krakow…
In fact @levelsio was right. Vibecoding all shit that is paid and sucks but you need. Just did agenda conf to manage conference live agenda and an interactive feedback for slides like slido... Soon I'll share
Funny how @BSidesKrakow just finished and... I miss already... let's prepare for next year then! @BSides #CyberSec #InfoSec
It’s an honor to organize @BSidesKrakow and be part of something this big, meaningful, and fun.
Seeing this #community grow year after year makes me incredibly proud.
Thanks to everyone who showed up, shared, helped, spoke, sponsored, volunteered, and made it happen. ❤️#BSides
Cássio B. Pereira | AppSec retweeted
🚨SOLD OUT!🚨
For the first time in #BSides Kraków history, we are officially OUT OF TICKETS!🎟️🔥
Every single ticket has been claimed. Free or donation-based, they’re all gone!
Thank you, Kraków #cybersecurity #community. You made this happen.
See you at #BSidesKrakow 2026! 🇵🇱
Cássio B. Pereira | AppSec retweeted
In 1915, Britain made Fight for the Dardanelles, an animated propaganda film using cardboard figures, cotton explosions, and maps to show WWI battles.
Cássio B. Pereira | AppSec retweeted
Coming to #Poland for @BSidesKrakow ? No? Get your ticket! I'm presenting on a new <AI buzzwords> tool "SPOTTER" and pay-what-you-can training where we hack a Ruzzian drone company with all the ru software your hacking heart desires.
Cássio B. Pereira | AppSec retweeted
🤩We are happy to announce our #partnership with @semgrep #Code #security for builders. Catch, flag, and fix real issues before they ship, powered by security that learns as you build. #BSidesKrakow #InfoSec #CyberSec #Conference #BSides
Cássio B. Pereira | AppSec retweeted
🤩📷We are happy to announce our #partnership with @Heineken @HeinekenPolska @Heineken_Polska. #HEINEKEN in #Kraków is a Shared Services Center supporting the iconic #Heineken brand across #Europe #BSidesKrakow #InfoSec #CyberSec #Conference #BSides
Cássio B. Pereira | AppSec retweeted
instagram.com/p/Dbqp04KgSj7/… my training is coming to @BSidesKrakow again! Pay-what-you can format!
Cássio B. Pereira | AppSec retweeted
🤯📷We are happy to announce our partnership with
@CyberSecGames #Security isn’t just tools, tick boxes and #compliance. It’s people getting involved, having fun and making security part of how they work. We make it happen through play. #BSidesKrakow #BSides #InfoSec #CyberSec
Cássio B. Pereira | AppSec retweeted
📢We are happy to announce a #partnership with Secure Habits. From #SSDLC maturity to EU CRA #compliance - empowering your teams to build secure-by-design products. #Cyber #InfoSec #Security #BSides
Cássio B. Pereira | AppSec retweeted
Yes, that's it.... our agenda is now 99.9% complete. Check it out bsideskrakow.pl/ now and register while we still have free tickets bsideskrakow2026.eventbrite.…
Cássio B. Pereira | AppSec retweeted
🤯🤩Holy shit! Holy shit! Holy shit! Our pre-agenda is out and it's really insane, check it out now! #BSides Kraków #InfoSec #CyberSec #Security #Conference #Europe bsideskrakow.pl




















