hackArcana
@hackarcana.bsky.social
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Train your Hands-on Cybersecurity Skills โ
https://hackArcana.com
โณ 4 days left. Practical Deep Dive into Kubernetes Security starts on Tuesday. โ๏ธ 6 weeks of hands-on labs โ๏ธ Your own Kubernetes cluster โ๏ธ Live sessions with security practitioners
1 day ago
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That's why we want to first show all misconfigurations. Then we will show how to attack them. And then, obviously, we will teach you how to prevent them and stop attackers from abusing them. Use code K8S-HBS-10 for 10% off.
hackarcana.com/q2-2026-k8s
8 days ago
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Most Kubernetes security courses teach theory. This one is hands-on from day one: labs, real attack paths, RBAC abuse, runtime security, networking & container internals. Led live by experienced & certified security engineers ๐ Use code K8S-HBS-10 for 10% off.
16 days ago
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Two new RE exercises just dropped ๐ฅ ๐ฅย RiskY Bronze ๐ฅ RiskY Silver A bit retro, on the simpler side, and focused on reversing compiled Python 2.7 internals. Have fun!
hackarcana.com/exercises
17 days ago
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Challenge down. Want to go deeper? Jump into a lab-based 6-week live security workshop covering build, deploy, runtime, RBAC, networking, and low-level container internals. Use code K8S-HBS-10 for 10% off.
22 days ago
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Quick reminder: tomorrow at 7 PM CEST
@gynvael.bsky.social
is hosting a live walkthrough of the Cloud Security Challenge for Kubernetes with the authors. Demo Live Hacking + Q&A Sign up here:
hackarcana.com/livestream-m...
24 days ago
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We misconfigured a Kubernetes environment. On May 14th, weโll show how it was broken. Live Hacking Demo + Q&A: K8s misconfigs, attack paths & privilege escalation. ๐ Link in comments
about 1 month ago
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We misconfigured a K8s environment and today at 6 PM CEST, we open the challenge. What happens next depends on what you notice ๐ Want to be there from the start? Sign up now.
hackarcana.com/invite-29th-...
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https://hackarcana.com/invite-29th-apr
about 1 month ago
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We set up a Kubernetes cluster. It looks fine at first glance. But one small detail changes everything. Will you be able to spot it? If you haven't joined yet, sign up for our "Cloud Security Challenge for Kubernetes"! ๐ link in the comment.
about 1 month ago
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๐ฃ Registration for the "Cloud Security Challenge for Kubernetes" is now open! Break into a vulnerable cluster, escalate privileges, and extract secrets โ just like in real-world attacks. Free / Intermediate / ~2h / Hands-on / Starts April 29 Think you can break it? ๐
hackarcana.com/k8s-challenge
about 2 months ago
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๐จ Learning C/C++? Beware of this classic trap: unspecified argument evaluation order! Different compilers = different results See why a specific tiny piece of code can behave wildly differently here
hackarcana.com/code-print
about 1 year ago
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๐ข Itโs not too late to join us! The Mastering Binary Files and Protocols workshop starts tomorrow (Apr 8) at 6pm CEST. If you sign up today, youโll still get: โ A spot in all of the live sessions โ Full access to all recordings โ 10% off with code MBF-HBS-10 Register here:
hackarcana.com/bin
about 1 year ago
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๐7 benefits of joining Mastering Binary Files and Protocols ๐ โ๏ธ Real binary skills โ๏ธ Faster debugging โ๏ธ Security mindset โ๏ธ Independence โ๏ธ Career boost โ๏ธ Problem-solving โ๏ธ Data insight ๐๏ธ Starts April 8 ๐ฅ Live sessions + downloadable recordings ๐ธ MBF-HBS-10 = 10% off until April 7 ๐
hackarcana.com/bin
about 1 year ago
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Come tonight at 7PM CEST! If you're into: ๐ง reverse engineering ๐ understanding how things work ๐งฉ solving CTF-style puzzles โ you'll love this session with
@gynvael.bsky.social
! ๐ด
www.youtube.com/live/xVrxfEk...
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๐ฎ Live CTF: Solving "Gamepad" from Gynvaelโs Collection | hackArcana Challenge
YouTube video by GynvaelEN
https://www.youtube.com/live/xVrxfEkklzI
about 1 year ago
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๐จ Last hours to join our free webinar with a legend โ Gynvael Coldwind! Whatโs inside? โข Real file handling mistakes โข Weird path behavior โข Hackerโs perspective on files โข Even a bit of forensics ๐ ๐งฉ Perfect for devs, admins, hackers & the curious. โณ Timeโs running out โ
hexarcana.ch/lp/files
about 1 year ago
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What will you learn in this webinar? ๐งฉ What is a fileโreally? ๐ง Hidden file features & common dev mistakes ๐ Weird world of file paths (yes, it gets strange) ๐ A glimpse into digital forensics ๐ March 31 | โฐ 8 PM CEST | ๐ธ Free Save your spot ๐
hexarcana.ch/lp/files/
and see you on Monday!
about 1 year ago
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๐จ <script> isnโt just textโitโs a command! Want it to show up in HTML? You have to escape it: โ <script> โ <script> Escaping keeps hackers out and your code clean ๐ Learn why it matters & how it works in our latest article ๐ ๐ Read here:
hackarcana.com/article/why-...
about 1 year ago
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reposted by
hackArcana
Gynvael Coldwind
about 1 year ago
If you like CTF challenges, we've been steadily pushing some of my favorite tasks to my new edu site:
hackarcana.com/exercises
From top to bottom: Linux RE, 2x JS RE, USB PCAP, ZIP/crypto, DOS/VGA RE, 2x BMP image stegano, 5x BMP file format stegano, Python 2.7 RE, and ROP RE HFGL
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Did you know pressing CTRL+D can make some C++ programs crash or loop forever? ๐คฏ Thatโs because cin enters an error state instead of truly โclosingโ input. Most apps handle it wellโbut not all ๐ Want to see why? Read our recent article ๐
hackarcana.com/article/ctrl...
about 1 year ago
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We've published a new article! โจ๏ธ Linux Terminal: CTRL+D is like pressing ENTER
hackarcana.com/article/ctrl...
Enjoy!
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https://hackarcana.com/article/ctrl-d-is-like-enter?utm=
about 1 year ago
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Pro tip for protocol hand-crafting lovers: Having problems sending \r\n on Linux? Press CTRL+V to escape the next key press, and follow it up with ENTER to get \r. CTRL+V, ENTER, ENTER โ \r\n
about 1 year ago
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โ ๏ธ Sanitizing input is tricky! Removing unwanted HTML tags prevents XSS, but wonโt stop SQL injections. To keep your app safe, use validation, escaping, and sanitization where they belong ๐ ๐ Read more here:
hackarcana.com/article/sani...
about 1 year ago
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We've got 200% increase in players overnight! Well, yes, it's 2โ4 on the scoreboard, but we're just starting :) And we have more challenges on the way, a lot more!
about 1 year ago
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For your enjoyment we're slowly adding
@gynvael.bsky.social
old challenges to our archive:
hackarcana.com/exercises
Slowly... becuase we test each one and re-flag them. Some fun ones are yet to come! Enjoy! P.S. If you like scoreboards, here's a chance to grab top1 easily.
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https://hackarcana.com/exercises
over 1 year ago
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๐ New blog post on hackArcana! Learn about: ๐น Validation vs. escaping vs. filtering ๐น When to use each method ๐น Common input handling mistakes ๐ Read here:
hackarcana.com/article/sani...
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https://hackarcana.com/article/sanitization-and-validation-and-escaping-oh-my
over 1 year ago
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Hey everyone! ๐ This is the official account of
hackarcana.com
โ the educational portal from HexArcana Cybersecurity (
hexarcana.ch
). If you want to up your skills in hands-on cybersec, click follow!
over 1 year ago
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