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CryptoCat

@cryptocat.me
519 followers 86 following 176 posts

Security Researcher @rapid7.com 😈 Hacking Content @ yt.cryptocat.me 💜

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CryptoCat @cryptocat.me · 03/09/2026
Writeup coming soon 😼
unauth rce
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CryptoCat @cryptocat.me · 31/08/2026
Having fun on @hacker0x01.bsky.social lately 👀
h1 grind
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CryptoCat @cryptocat.me · 28/08/2026
First bounty on @yeswehack.bsky.social! 💜 Found an info disclosure vuln that leaked 50k+ users details, incl name/DOB/phone/address/passport etc 😎
ywh bountyplz
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CryptoCat @cryptocat.me · 31/07/2026
💎 🚄 2️⃣ 🐚 🔜 @metasploit-r7.bsky.social
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CryptoCat @cryptocat.me · 23/07/2026
WP2Shell coming soon to @metasploit-r7.bsky.social 👀
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CryptoCat @cryptocat.me · 28/05/2026
Found an unpatched RCE in Gogs 👀 Any authenticated user can get code execution on the server through argument injection into git rebase. Full @rapid7.com writeup + #Metasploit module available now! 🔗 www.rapid7.com/blog/post/ve...
RCE via argument injection in Gogs
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CryptoCat @cryptocat.me · 17/03/2026
Happy St Patrick's day ☘
☘😺☘
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CryptoCat @cryptocat.me · 04/03/2026
My first @metasploit-r7.bsky.social module is live! You can now exploit CVE-2026-1731 (BeyondTrust command injection) with the latest version 😎
CVE-2026-1731 Metasploit module demo
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CryptoCat @cryptocat.me · 05/02/2026
Couldn't be more excited to announce I'm joining the vulnerability research team at @rapid7.com next week! 🥳 Really looking forward to teaming up with some seriously talented researchers and digging into real-world threats and vulnerabilities. Stay tuned 😎
CryptoCat x Rapid7 🧡
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CryptoCat @cryptocat.me · 31/12/2025
Happy new year!! 🥳🎉
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CryptoCat @cryptocat.me · 31/12/2025
I've been working hard to move my written content from gitbook over to my own website 👷‍♂️ It's still a work in progress, but I'm pretty happy with the results so far 🙂 🔗 cryptocat.me/blog/
New blog live @ https://cryptocat.me/blog/ 💜
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CryptoCat @cryptocat.me · 25/12/2025
Wishing a very hacky christmas to all the hacker fam! 🎅
Hacky Christmas 🎄
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CryptoCat @cryptocat.me · 18/12/2025
The #NahamCon2025 CTF is over ✅ Writeups for my challs 👇 🎮 Hacky Christmas ➡ book.cryptocat.me/blog/ctf/202... 💥 VulnBank ➡ book.cryptocat.me/blog/ctf/202... 💥 Snorex 2K CCTV ➡ book.cryptocat.me/blog/ctf/202... Stay tuned for a video walkthrough of Hacky Christmas 🎅🎄
Hacky Christmas Challenge [gamepwn]
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CryptoCat @cryptocat.me · 17/12/2025
I made a couple of [easy-med] challenges for #NahamCon2025 - you've got 24 hours! 💜 🎮 ctf.nahamcon.com/hubs/hacky-c... 💥 ctf.nahamcon.com/hubs/vuln-bank 💥 ctf.nahamcon.com/hubs/snorex-... Here's a sneak peek at Hacky Christmas 🎅 Can you escape the ice box and take out 1 MILLION gingerbread men? 🎄
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CryptoCat @cryptocat.me · 11/12/2025
🌈✨️
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CryptoCat @cryptocat.me · 11/12/2025
New stickers 😼
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CryptoCat @cryptocat.me · 27/11/2025
Didn't get chance to solve my "Mothers Printers" challenge on @hackinghub.bsky.social? 🖨 Here's the official writeup ➡ book.cryptocat.me/blog/ctf/mon... Prefer video? Stay tuned for a beginner-friendly walkthrough on YT next week ▶
Mother Printers challenge PoC 💜
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CryptoCat @cryptocat.me · 14/11/2025
Congratulations to Bhavya for being the first to capture all 5 flags on my @hackinghub.bsky.social challenge! 🥳🎉 We've released a small patch. If you were stuck on flag 3, please re-download files! Good time to practice your patch-diffing 👀 app.hackinghub.io/hubs/mother-...
First blood on https://app.hackinghub.io/hubs/mother-printers
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CryptoCat @cryptocat.me · 13/11/2025
So, who's gonna blood my new @hackinghub.bsky.social challenge? 😼 Challenge 🔗 app.hackinghub.io/hubs/mother-... First 3 solves will earn the "Hacker Cat" role in my discord server ➡️ discord.cryptocat.me #ctf #capturetheflag #ethicalhacking #cybersecurity #infosec #offsec
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CryptoCat @cryptocat.me · 28/10/2025
My writeup for the September Dojo challenge on @yeswehack.bsky.social - Chainfection ⛓ The challenge combined multiple CVEs, creating a chain of vulnerabilities: SQL injection -> file write + path traversal -> SSTI (RCE) Read the full writeup ➡️ book.cryptocat.me/blog/ctf/mon...
SQL injection -> file write + path traversal -> SSTI (RCE)
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CryptoCat @cryptocat.me · 22/10/2025
I made a new CTF challenge! It will run until the 30th of October 🎃 There's no prizes, but the first 3 solves will earn themselves the "Hacker Cat" rank in my discord server 😸 Download "Ultimate Calculator 3000" to get started ➡ discord.cryptocat.me
New CTF Challenge: https://discord.cryptocat.me
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CryptoCat @cryptocat.me · 04/09/2025
One week until @bsidesbelfast.bsky.social, Who's going? 👀 As always, I've got stickers - come say hi! 👋
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CryptoCat @cryptocat.me · 14/08/2025
Video walkthrough for the "Fancy Login Form" web challenge from the @why2025.bsky.social CTF 🚩 Learn how to exfiltrate data via CSS injection ➡️ youtu.be/jUjlj2z5jJk
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CryptoCat @cryptocat.me · 01/07/2025
Famous beef noodle soup (broth simmering continously for over 50 years!) in one of my all time favourite cities - Bangkok! 🇹🇭 Any hackers here wanna hang out, hmu 🤙
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CryptoCat @cryptocat.me · 28/06/2025
Singapore 🇸🇬
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CryptoCat @cryptocat.me · 28/06/2025
I've done a lot of awesome hacker meetups but this one was next level! So nice to meet brutecat, dreyand and IDlSSEVERYTHING🔥 These guys have some crazy skills (and stories), hope to meet again in the future 💜
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CryptoCat @cryptocat.me · 26/06/2025
I'll be in Singapore this weekend! I know there's lots of cool hackers there so hmu if you wanna get some coffee/food/drinks 🥰
CryptoCat x Singapore
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CryptoCat @cryptocat.me · 13/06/2025
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CryptoCat @cryptocat.me · 12/06/2025
Finally back in #KualaLumpur 🙏 Meeting some of my favourite Malaysian hackers for food/drinks tomorrow night. If you wanna join, let me know! 🥰
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CryptoCat @cryptocat.me · 09/06/2025
🍉
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CryptoCat @cryptocat.me · 23/05/2025
Just finished my OSWE exam 👀 Today I write up the report.. while watching #NahamCon 😌
OSWE Exam Complete
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CryptoCat @cryptocat.me · 15/05/2025
Heading back to SE-Asia next month.. Any hackers wanna hang out? 👀 Join my discord to keep up with the travel plans / arrange meetups: cryptocat.me/discord 😇 #cybersecurity #ethicalhacking #infosec #bugbounty #ctf #asia
CryptoCat x Asia
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CryptoCat @cryptocat.me · 01/05/2025
Have YOU joined my discord server yet? Click the link below and let's talk about hacking stuff 💜 discord.cryptocat.me
CryptoCat's Discord: https://discord.cryptocat.me
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CryptoCat @cryptocat.me · 28/04/2025
Made writeups for the web challs featured in the CTF@CIT competition this weekend 🚩 1) SQL injection 2) Git repo dumping 3) Local file read with basic filter bypass 4) Flask session cookie tampering + SSTI 5) Credential reuse / HTTP method tampering book.cryptocat.me/ctf-writeups...
CIT CTF web challenge writeups
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CryptoCat @cryptocat.me · 07/04/2025
My YouTube channel has reached a new milestone; 3 million views! 🥳🎉 Next up - 50k subscribers! Help me get there 🥺 yt.cryptocat.me
3 million views - https://yt.cryptocat.me
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CryptoCat @cryptocat.me · 30/03/2025
London 🇬🇧🏙🎨
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CryptoCat @cryptocat.me · 22/03/2025
Almost 600 hackers at ZeroDays CTF in #Dublin this year!! 💜 #ZeroDays #CTF #CaptureTheFlag #CyberSecurity #EthicalHacking #InfoSec #BugBounty #Ireland
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CryptoCat @cryptocat.me · 16/03/2025
Met so many cool hackers over the past few days in Kuala Lumpur! 💜
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CryptoCat @cryptocat.me · 07/03/2025
Yay, another hacker hangout! So nice to finally meet @taeluralexis.bsky.social 💜
🥰
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CryptoCat @cryptocat.me · 03/03/2025
Another hacker has joined the crew 😎
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CryptoCat @cryptocat.me · 03/03/2025
Bug hunter and taxi driver! 😂
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CryptoCat @cryptocat.me · 02/03/2025
Met one of my favourite @intigriti.com hackers today! ngyostuan 💜
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CryptoCat @cryptocat.me · 25/02/2025
I hit the 40k subscribers milestone on YouTube this week 🥳🎉 Thank you to everyone who has checked out my content 🙏🥰 If you haven't yet and are interested in CTF walkthroughs; web, pwn, rev etc Hope you will take a look and help me get to 50k! 😎 yt.cryptocat.me
40,000+ subscribers on YouTube 💜
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CryptoCat @cryptocat.me · 16/02/2025
Boycotts work! 🇵🇸
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CryptoCat @cryptocat.me · 15/02/2025
And the beginning of Vietnam 🤤
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CryptoCat @cryptocat.me · 15/02/2025
The last Thai breakfast 😋
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CryptoCat @cryptocat.me · 21/01/2025
🌤😶‍🌫️
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CryptoCat @cryptocat.me · 15/01/2025
Third and final hint 👀 Some say URL parsing is both difficult & frustrating ?
URL parser..
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CryptoCat @cryptocat.me · 10/01/2025
100 likes, second hint! Did I say "the way"? Sorry, I meant "the path" 😼
The path..
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CryptoCat @cryptocat.me · 09/01/2025
50 likes (on X lol), first hint! Focus on the pattern, it's your guiding star, The way to the answer isn’t too far.
Focus on the pattern..
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