dqi @__dqi

Congratulations for solving the BFS @ekoparty challenge! The winners In order of submission: 1. @__dqi 2. @0vercl0k 3. @p0lak0w 4. @pat0is 5. @littlewho__ 6. @0xf4b 7. @trickster012 8. @SecSignal 9. @_fr0zn

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dqi @__dqi

8 years ago

Exploit for #ctfzone mobile_bank ctftime.org/writeup/10489 :)

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dqi @__dqi

8 years ago

@sirdarckcat qutebrowser, why?

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dqi @__dqi

8 years ago

#GoogleCTF Good times playing ctf this weekend managed to solve some of the crypto! :D

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dqi @__dqi

9 years ago

A writeup for Secure Login from SHACTF :) github.com/dqi/ctf_writeu… @sha2017ctf #SHA2017 #SHA2017ctf

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dqi @__dqi

9 years ago

A writeup for Crypto Backdoor from #GoogleCTF :) github.com/dqi/ctf_writeu… @write_ups

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dqi @__dqi

9 years ago

VolgaCTF #writeup for Casino: github.com/dqi/ctf_writeu… @VolgaCTF @write_ups #VolgaCTF #CTF

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dqi @__dqi

10 years ago

SharifCTF XOR (Crypto 150) Solution: github.com/dqi/ctf_writeu… #sharifctf #CTF #infosec @write_ups

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dqi @__dqi

10 years ago

@Riscure Dropping in the ranks while waiting for hardware! :) #rhme2

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dqi @__dqi

10 years ago

Writeup for hieccs of TUM CTF github.com/dqi/ctf_writeu… @write_ups

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Eloi Sanfelix @esanfelix

10 years ago

Solve this fairly simple crackme to ensure you'll receive the real deal: an embedded board based ctf challenge :-) x.com/Riscure/status…

Keysight Device Security Testing @Riscure

10 years ago

#RHMe2 The new challenge is coming! Reserve your board now.. riscure.com/challenge/

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Keysight Device Security Testing @Riscure

10 years ago

#RHMe2 The new challenge is coming! Reserve your board now.. riscure.com/challenge/

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dqi @__dqi

10 years ago

@g0tmi1k what did i do

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Sleauez @Sleauez167278

52 Followers 284 Following

buffyo @f41k_buffy

2 Followers 236 Following cybersomething

https://t.co/ZQHWzFLl21 | CTF Player @towerofhanoi and @mhackeroni | Security Researcher | Coach @CyberTeamItaly | Coach Team Europe

JinBlack (Mario Polin... @JinBlackx

886 Followers 542 Following https://t.co/ZQHWzFLl21 | CTF Player @towerofhanoi and @mhackeroni | Security Researcher | Coach @CyberTeamItaly | Coach Team Europe

LastCall_Writes @lastcall_writes

117 Followers 148 Following

Datura @0xdatura

327 Followers 7K Following protocol https://t.co/GHtSwwShe1.

DiegoAltF4 @Diego_AltF4

701 Followers 2K Following Binary Exploitation & Fuzzing enthusiast with a special focus on Hypervisors

Manuel Blanco @dialluvioso_

1K Followers 365 Following CS engineer specialized in📱🐛💥

Josh @Jblk1337

0 Followers 519 Following

I like to define Undefined Behaviors. Android Kernel Researcher @SAFATeamGmbH. Ex-@XI_Research. Mastodon: @zlowram@infosec.exchange

Sergi Martinez @zlowram_

2K Followers 802 Following I like to define Undefined Behaviors. Android Kernel Researcher @SAFATeamGmbH. Ex-@XI_Research. Mastodon: @[email protected]

Shivankar @shivankarmadaan

207 Followers 1K Following SecurityResearcher

Ben @XploitBengineer

1K Followers 627 Following Android Vulnerability Researcher, Pwn2Own 202{3, 5}

ii4gsp @ii4gsp

126 Followers 198 Following Security Researcher

Ingeniero Informático por la UPNA. Vulnerability Researcher | Exploit development | Linux user + kernel | Android. CTF player. @javierprtd@mastodon.social

Javier Partido Rufo @javierprtd

774 Followers 351 Following Ingeniero Informático por la UPNA. Vulnerability Researcher | Exploit development | Linux user + kernel | Android. CTF player. @[email protected]

Retired ASIS CTF player! @Crypto_CTF & @ASIS_CTF orgs!
Now teaching InfoSec so others don't break things (hopefully). Also yelling into the airwaves as EP2AES!

refactoreal @refactoreal

360 Followers 854 Following Retired ASIS CTF player! @Crypto_CTF & @ASIS_CTF orgs! Now teaching InfoSec so others don't break things (hopefully). Also yelling into the airwaves as EP2AES!

مهندس شبكات وأمن معلومات Network Security Eng 3xCCIE (Enterprise, Security, DC), Fortinet, ISE, CISSP,CISM, PMP, SD-Wan, SD-Access,F5-LTM&ASM, Palo Alto etc

kbahussein @kbahussein1

522 Followers 5K Following مهندس شبكات وأمن معلومات Network Security Eng 3xCCIE (Enterprise, Security, DC), Fortinet, ISE, CISSP,CISM, PMP, SD-Wan, SD-Access,F5-LTM&ASM, Palo Alto etc

arksec @arksec01

106 Followers 3K Following Developer and Hacker

Zerosum @Zerosumsecurity

44 Followers 305 Following Security, cryptography, math. Play crypto challenges at https://t.co/TL0PU9SJGQ

Winning
There are a lot of good reasons to trust me
I have been here since 2011. All I find is happiness. Am confident in humanity. Good will prevail over evil.

Gift Murapa @MurapaG

65K Followers 67K Following Winning There are a lot of good reasons to trust me I have been here since 2011. All I find is happiness. Am confident in humanity. Good will prevail over evil.

jarnesha @jarnesha5

8 Followers 874 Following CTF player

Quoc Huy Le @huylq109

29 Followers 851 Following

Markiyan Chaklosh @markiyanch

42 Followers 273 Following ARIMLABS

Ferrous @ironhex

186 Followers 1K Following Cyber Threat Intelligence | Detection Engineering | Open DM

blasty @bl4sty

17K Followers 1K Following irresponsible disclosure aficionado

- ᎥѕＨТâᏒ @megatr0nz

607 Followers 5K Following Michalis Papadopoullos

CryptoHack is a fun platform for learning modern cryptography through a series of puzzles and challenges.

Free to play for all

CryptoHack @CryptoHack__

6K Followers 731 Following CryptoHack is a fun platform for learning modern cryptography through a series of puzzles and challenges. Free to play for all

Ndubueze Victor @SHADOWX180876

257 Followers 4K Following Cvarsity Forex Academy. The Tech You Should know. Developing My Dreams....

abgeana 👾 @abgeana

9 Followers 290 Following

AlligatorCon Europe @AlligatorConEU

1K Followers 851 Following 🐊12-13 Sep 2025 🐊 Kraków, Poland 🐊

Security researcher, focusing on hardware, firmware and OS security | https://t.co/qdj70wzFaW | PhD candidate @vu5ec | @0Xiphorus@infosec.exchange

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486 Followers 232 Following Security researcher, focusing on hardware, firmware and OS security | https://t.co/qdj70wzFaW | PhD candidate @vu5ec | @[email protected]

Christopher @0x01_chris

96 Followers 377 Following https://t.co/x9uK7Xv7o6

JBr34k @JBr34k

6 Followers 496 Following

Inactive account! PhD student. Interested in cryptography engineering. Likes electro swing. Friend of BLÅHAJ. (she/her) @dusk@hachyderm.io

Amber @electricdusk

153 Followers 121 Following Inactive account! PhD student. Interested in cryptography engineering. Likes electro swing. Friend of BLÅHAJ. (she/her) @[email protected]

Wolfgang Rumbli @WolfgangRumbli

136 Followers 2K Following Security, Cryptography, Historical Cryptology, Hiking, Science, Politics, Philosophy, Music.

samvartaka @s4mvartaka

725 Followers 2K Following Founding Partner @midnightbluelab Tweets represent neither employer's opinions nor my own

vvxhid @vvxhid1

254 Followers 2K Following Security @CodeanIO | SWE | CTF player

Adrien Stoffel @__awe

1K Followers 499 Following 0daysober CTF team

Vaisha Bernard @the1bernard

190 Followers 394 Following Chief Hacker @eyesecurity

_ @votsy_totsy

1 Followers 295 Following

asecbug @AsecBug

42 Followers 470 Following Null

${ Christian Hacker } { ceo @aisafe_io } { @WreckTheLine }$

FeDEX @FetchDEX

1K Followers 2K Following { Christian Hacker } { ceo @aisafe_io } { @WreckTheLine }

== ReadOnly account ==
OffSec dev • exploit dev • kernel • hypervisor
GH: hugsy
Discord: hugsy#0766
BS: @blah.cat
MS: crazy.hugsy@infosec.exchange

crazy hugsy @_hugsy_

4K Followers 942 Following == ReadOnly account == OffSec dev • exploit dev • kernel • hypervisor GH: hugsy Discord: hugsy#0766 BS: @blah.cat MS: [email protected]

f00fc7c800 @f00fc7c800

2K Followers 7K Following

Dvir Atias @syst3m8bad

191 Followers 1K Following Building the biggest tech holdco

Luke Jahnke @lukejahnke

3K Followers 6K Following

chaignc - Sanson @chaignc

4K Followers 4K Following I protected governments, hospitals, defense, and CAC40. Hacker AI - CEO: acquired in 2023.

Jeremy Fetiveau @__x86

4K Followers 2K Following CEO & co-founder @epsilon_sec

slowcode @slowcode42

535 Followers 7K Following

Oriel Cochavi @OrielCochavi

104 Followers 2K Following

robg @_robgalvan

309 Followers 1K Following

cloud @jmpesp

625 Followers 1K Following gnu tweets

Calif @calif_io

6K Followers 31 Following We're https://t.co/KTEDnC2VUV. Join us to make the Internet safer for your mum and everyone else: https://t.co/eUFMLkW9t2.

Radiant Research Labs @RRLabs32

199 Followers 2 Following Built to solve

Security consulting and vulnerability research services for a mobile connected world. | We find needles in your software haystack.

Taszk Security Labs @TaszkSecLabs

2K Followers 4 Following Security consulting and vulnerability research services for a mobile connected world. | We find needles in your software haystack.

Mathy Vanhoef @vanhoefm

14K Followers 2K Following Prof. @KU_Leuven | Ex-Postdoc NYU | Network Security & Crypto | FragAttacks & KRACK | https://t.co/cFWyCYRZyH

Michael Coppola @mncoppola

3K Followers 617 Following Vulnerability researcher @catalystsec

Catalyst Security @catalystsec

753 Followers 8 Following Catalyst Security - Excellence in Research

Tarjei Mandt @kernelpool

17K Followers 652 Following

Binary Wizards @BinaryWizards

5K Followers 547 Following Binary Wizards: security, reverse engineering, programming, AI and more.

Klecko @klecko0

600 Followers 476 Following weird machines programmer

Pumpkin 🎃 @u1f383

2K Followers 306 Following Linux & Android researcher

Sergei Volokitin @hexpl0t

199 Followers 66 Following

Krzysztof Okupski @exminium

309 Followers 186 Following Embedded security, reverse engineering and software exploitation

Manuel Blanco @dialluvioso_

1K Followers 365 Following CS engineer specialized in📱🐛💥

Eze Lei @eze_lei

102 Followers 342 Following

Help researchers, offensive cybersecurity companies and governments navigate the offensive cybersecurity industry

Maor Shwartz @malltos92

4K Followers 3K Following Help researchers, offensive cybersecurity companies and governments navigate the offensive cybersecurity industry

Sergi Martinez @zlowram_

2K Followers 802 Following I like to define Undefined Behaviors. Android Kernel Researcher @SAFATeamGmbH. Ex-@XI_Research. Mastodon: @[email protected]

No Hat Con @nohatcon

3K Followers 15 Following Computer Security Conference | 10th October 2026 | Bergamo (Italy) | CfP is open @ https://t.co/CUopdPkMPx

A new DC hacker conference: Bringing together builders, breakers, and fixers to do cool shit. 🪩 Year 2: February 6-7, 2027 🪩
https://t.co/qYKu4hlyJR

DistrictCon @DistrictCon

2K Followers 33 Following A new DC hacker conference: Bringing together builders, breakers, and fixers to do cool shit. 🪩 Year 2: February 6-7, 2027 🪩 https://t.co/qYKu4hlyJR

Midnight Blue @midnightbluelab

441 Followers 392 Following Boutique security consultancy firm specialized in high-end security research

Rei Kawa @kawarei0

472 Followers 213 Following

Epsilon @epsilon_sec

1K Followers 3 Following Security research. Event planning. Very few clicks.

Maher Azzouzi @maherazz2

1K Followers 412 Following

kmkz @kmkz_security

20K Followers 2K Following Bourbon Offensive Security Services | BOSS

Tim Willis @itswillis

5K Followers 201 Following Long time listener, infrequent tweeter. Head of Exploitation and Offensive Research at Google. Views are my own.

SAFA Team @SAFATeamApS

477 Followers 113 Following

In kernel space no one can hear you scream! The Android kernel guy at SAFA Team, proud @SpamAndHex dropout.

We are hiring: https://t.co/UPcIOeusrM

Gyorgy Miru (Gym) @gymiru

746 Followers 300 Following In kernel space no one can hear you scream! The Android kernel guy at SAFA Team, proud @SpamAndHex dropout. We are hiring: https://t.co/UPcIOeusrM

AJ @justandrijana

615 Followers 406 Following Janai researcher. AJ around the world. RCEPECT. CEO of SAFA Team.

Alex Plaskett @alexjplaskett

14K Followers 588 Following Security Researcher | Pwn2Own 2018, 2021, 2022, 2024 | Posts about 0day, OS, mobile and embedded security.

An open-eyed man falling into the well of weird warring state machines. I talk about reverse engineering, vulnerability research and exploit development.

dunadan @udunadan

1K Followers 87 Following An open-eyed man falling into the well of weird warring state machines. I talk about reverse engineering, vulnerability research and exploit development.

DAY[0] @dayzerosec

7K Followers 42 Following Account for the day[0] podcast + media.

@gr4yf0x.bsky.social
@grayfox@nso.group

aka K³; Physicist now mostly interested in security stuff

Karsten @gr4yf0x

998 Followers 1K Following @gr4yf0x.bsky.social @[email protected] aka K³; Physicist now mostly interested in security stuff

Vigilant Labs @vigilant_labs

3K Followers 3 Following Official account of Vigilant Labs (https://t.co/PzW4HkfAwd).

PIVOTcon @pivot_con

990 Followers 276 Following Threat Research Conference in Europe - Malaga, Spain - 6-8 May 2026. #StayTuned #ComingSoon #PIVOTcon #PIVOTcon25

David Bouman @pqlqpql

2K Followers 390 Following vuln research (mostly kernels) & ctf w/ @0rganizers

Belgian Information Security Conference | #BruCON0x12 (18th edition) Spring Training 22-24 April 2026 | Training 21-23 Sept - Conference 24-25 Sept 2026

BruCON @brucon

9K Followers 1K Following Belgian Information Security Conference | #BruCON0x12 (18th edition) Spring Training 22-24 April 2026 | Training 21-23 Sept - Conference 24-25 Sept 2026

Dataflow Security @dfsec_com

5K Followers 4 Following

Weeb bounty hunter 🇧🇷, 2024 Top 20 Chrome VRP Researcher.
Interested in browser/kernel security, GFX and AI driven text games.
Miqu!

Renan Rios @hyhy_100

218 Followers 285 Following Weeb bounty hunter 🇧🇷, 2024 Top 20 Chrome VRP Researcher. Interested in browser/kernel security, GFX and AI driven text games. Miqu!

ZeroZenX @zerozenxlabs

1K Followers 10 Following ZeroZenX, your trusted destination for cutting-edge 0day acquisition solutions.

https://t.co/fGiEOuqZLa is the 19th edition of the infosec conference in Luxembourg. Tuesday, 21 October to Friday, 24 October

@hack_lu@infosec.exchange

hack_lu @hack_lu

8K Followers 189 Following https://t.co/fGiEOuqZLa is the 19th edition of the infosec conference in Luxembourg. Tuesday, 21 October to Friday, 24 October @[email protected]

V4bel @v4bel

4K Followers 158 Following Independent Vuln. Researcher / Pwn2Own Berlin 2025, 2026 / Google kernelCTF 0-day / Google kvmCTF 0-day / Pwnie Awards 2025

Joshua J. Drake @jduck

27K Followers 2K Following Securing the future through modern technology. Founder and Software Security Specialist at @magnetitesec

Ben @XploitBengineer

1K Followers 627 Following Android Vulnerability Researcher, Pwn2Own 202{3, 5}

AI-Enhanced Security researcher, Pwn2Own {2021, 2022}, #VR #RE #ED #AI (Mastodon: @saidelike@infosec.exchange)

Cedric Halbronn @saidelike

4K Followers 882 Following AI-Enhanced Security researcher, Pwn2Own {2021, 2022}, #VR #RE #ED #AI (Mastodon: @[email protected])

ii4gsp @ii4gsp

126 Followers 198 Following Security Researcher

RE//verse @REverseConf

4K Followers 30 Following A conference for all things in the reverse engineering universe... https://t.co/X54VHq2eD4

Pablo Endres 🥋 @epablosensei

2K Followers 4K Following Hacker, Trainer, Entrepreneur and Occasional speaker | IoT, Cloud and ICS | Karate. He/Him

To catch an adversary you must become one. Always deliver more than expected !!!!!! All post are educational purposes only. prompt Library ⬇️ URL

Mr. OS @ksg93rd

3K Followers 1K Following To catch an adversary you must become one. Always deliver more than expected !!!!!! All post are educational purposes only. prompt Library ⬇️ URL

Longterm Security @longtermsec

447 Followers 0 Following We're a computer security company

Matthias Kaiser @matthias_kaiser

7K Followers 1K Following Vulnerability Researcher. 0xACED. Ex-Apple. Now @matthiaskaiser.bsky.social

Analyst and Qc/MTK/Exynos/Unisoc/Kirin chipset pwner (aka RevSkills). Reverse Engineer/Coder/Maker. 3D Print and SDR enthusiast. New Technology. Bot-Hater.

Bjoern Kerler @viperbjk

3K Followers 548 Following Analyst and Qc/MTK/Exynos/Unisoc/Kirin chipset pwner (aka RevSkills). Reverse Engineer/Coder/Maker. 3D Print and SDR enthusiast. New Technology. Bot-Hater.