Jung-hwan Kang @ultractt
Cyber Security Researcher. Open Source Summit North America 2017/2018/2020/2021 Speaker, Blackhat Asia 2017 Speaker, Open Source Developer. blog.naver.com/ultract2 대한민국 Joined February 2010-
Tweets2K
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Following472
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@insu_yun Hope you enjoy your last dance!
@c0m0r1 I’m curious about the meaning of the team name.
@c0m0r1 @__g0ri__ @1nteger_c @nga_990 @0nidking Congrats :)
@l33d0hyun This seems to be a common challenge for vulnerability researchers. It’s about showing a concrete contribution to the field and proving it convincingly. Looking forward to seeing your great results! Please share them when you can!
@l33d0hyun Mitre att&ck and cyber kill chain?
@c0m0r1 I really really respect mathematicians :)
@c0m0r1 What about telling your professor about your birthday??
@yarden_shafir Interesting! Supply chain attacks are occurring? Targeting developers?
@0xor0ne @raelizecom Your tweets are really interesting. Thx :)
@Dinosn It is interesting that malware uses the eBPF. But I just wonder that why the simple ld_preload technique is difficult to detect. ??
@dwizzzleMSFT Return address signing means PAC of Arm??
Akshit Singh @akshit_it4ch1
152 Followers 547 Following Reverse engineer and Malware Analyst, CTF-Player @InfoSecIITR, Security engineer@Talsec
Ch40s 🏴☠️ @DrCh40s
594 Followers 617 Following Reversing stuffs for fun and always looking for the perfect....former Symantec, RSA, EMC, DELL. Proud RETooling and Malware OPSEC training father.Opinions are…
Johnny @Luckyrocky2028
251 Followers 7K Following Stay Hungry, Stay Foolish. Only those who are self-disciplined can attain true freedom.|No Politics.
Darius Houle (darbonz... @dariushoule
249 Followers 609 Following Hacker, builder, appsec practitioner, security researcher. Probable world championship player of the creative masterpiece: Lemmings (1991)
James Morris 👾 @xjamesmorris
1K Followers 2K Following Linux Security @ Microsoft 🐧 Also W7TXT 📡 Supporter of LGBT+ Also: - https://t.co/qC2IlOsvnX - https://t.co/ag0ekLoFOH - https://t.co/f919OsoYZv
timlake @timlake252160
1 Followers 2K Following
Anderson Nascimento @andersonc0d3
4K Followers 7K Following Director & Security Researcher @alleleintel
Tae Hyung @TaeHyung428867
23 Followers 914 Following
Zion Leonahenahe Basq... @mahal0z
3K Followers 283 Following Native Hawaiian Hacker | Prev Co-captain of @Shellphish | Incoming Assistant Professor at University of Georgia
Ahmed Y. Elmogy @AhmedYElmogy
33 Followers 1K Following Independent web security researcher and bug bounty hunter.
Lilith Kelvin @Nowhous4Lc4jdD
6 Followers 221 Following
nanjin002 @nanjin00272827
12 Followers 4K Following
Javier Partido Rufo @javierprtd
750 Followers 361 Following Ingeniero Informático por la UPNA. Vulnerability Researcher | Exploit development | Linux user + kernel | Android. CTF player. @[email protected]
Platform Security Sum... @platformsec
986 Followers 4K Following Conference on composable software supply chain integrity and hardware-assisted platform security, with OpenEmbedded, OpenXT and other ecosystems
서정원 @OkonkwoNkenna
704 Followers 7K Following
VanessaPullman @5s39CyaVYw18V7
54 Followers 7K Following
Ahmed @Mawg0ud
4K Followers 3K Following
Amy @Addison13270291
14 Followers 649 Following
Stella @Stella41249994
43 Followers 1K Following NSFW💯😏 A bad ass bitch #Female Escort( into meet ups) and also a content creator
perfect4sec @perfect4sec
745 Followers 5K Following DFIR | Threat Intelligence | Malware Analyst | Researcher | Cybersecurity Proactive Defense Team
Insu Yun @insu_yun
2K Followers 615 Following Associate Professor (Untenured) at KAIST EE #KAIST #HackingLab #GoN
Tom D - Growth Design... @thomasdunnuk
14K Followers 3K Following Transforming ideas into life changing products people love 🪄 Research/UX/UI/Growth 🛠️ Prev Founding Designer @audit_wizard + Senior Product Designer @Buffer
c0m0r1 @c0m0r1
2K Followers 360 Following Currently @ @ENKI_official_X / KAIST CS & EE 18 + EE M.S. 23 @ KAIST Hacking Lab. / KAIST GoN 18 / pwn, rev ❤️ / newbie forever / 음악하는 코모리 @DC0m0r1
binish @bi_ni_sh
330 Followers 355 Following Security Researcher, a.k.a. binish Gathering security information and sharing it.
crawler_cookie_0 @crawler_cookie0
21 Followers 4K Following
HackenProof @HackenProof
39K Followers 2K Following Expert bug bounty and crowdsourced security marketplace · 400+ programs · $ 26M + paid in bounties · 85k+ ethical hackers
Helthydriver @Helthydriver
736 Followers 591 Following
Plasma @b1tw1z4rd
0 Followers 5K Following
Andrey Konovalov @andreyknvl
8K Followers 874 Following Security engineer at https://t.co/027VXUlgOx. Focusing on the Linux kernel. Maintaining @linkersec. Trainings at https://t.co/D5MrxmYimS.
tsvik6 @tsvika_m
639 Followers 1K Following As my grandfather used to say «zero clicks, tons of charm» . @RRlabs32
Dinesh Shetty @Din3zh
3K Followers 2K Following Mobile/AI/IoT/Web security; Trainer & Speaker @BlackHat/DefCon/POC/OWASP/Hackfest...; Day job as Director of Security Engineering; #OSCE #OSCP #OSWE #CCISO...
Yeongjin Jang (blue90... @blue9057
2K Followers 3K Following Research Scientist@#GoogleDeepMind AIxCC/DEF CON CTF Champion. My tweets do not reflect the view of my employer. A sponsor of 🐻
수능아테나 @shjun68
24 Followers 300 Following "안녕하세요, 아이 성적표나 입시 요강을 받아 들었는데, 외계어 같은 용어들 때문에 당황하신 적 있으신가요? '세특'이 뭔지, '최저'는 또 뭔지... 물어볼 곳도 마땅치 않아 답답하셨을 부모님들을 위해 대학입시 핵심을 아주 쉽게 풀어드리려 합니다.
Muhmmad Irfan @Muhmmad69953409
19 Followers 2K Following
pr0cf5 @pr0cf51
2K Followers 871 Following Generating AI slop @QED_Audit ex. @TeamAtlanta24, @osec_io, @georgiatech
Austin Kuo @hckuo2
28 Followers 106 Following
qSEAp InfoTech @QseapInfotech
339 Followers 1K Following CERT-IN Empanelled #Infosec Company Offering Services in System Audit, Compliance Assessment and CaaS Across Asia and Middle East
f00fc7c800 @f00fc7c800
2K Followers 7K Following
Blue. @leileis20
0 Followers 4K Following
Unsloth AI @UnslothAI
94K Followers 475 Following Run and train models locally with the Unsloth Desktop app. 🦥 https://t.co/2kXqhhvdCD
LayoffHedge @LayoffAI
54K Followers 10 Following Tracking Layoffs in real time. We are here for you.
xss0r @xss0r
7K Followers 3K Following xss0r Deploying an alert box in a web app is like having a tiny pop-up comedian shout 'Surprise!' whenever you least expect it! #xss0r #ibrahimXSS #Blindxss0r
AISLE @AISLE_Inc
780 Followers 23 Following Sovereign AI that finds and fixes software vulnerabilities. Runs anywhere: cloud, on-prem, air-gapped.
Dave W Plummer @davepl1968
107K Followers 88 Following Hi! I'm Dave Plummer. You might remember me from such Windows components as Task Manager, Windows Pinball, Calc, ZIPFolders, Product Activation, etc. Cheers!
Back Engineering Labs @BackEngineerLab
2K Followers 4 Following Developing https://t.co/FGFRjFl0ql Discord: https://t.co/q0BPhc3mrk
IDontCode @_xeroxz
4K Followers 569 Following Compilers, Windows, Obfuscation, x86-64, Hardware Hacking, and everything in-between Cofounder @BackEngineerLab building https://t.co/tlnjvFj2Lg
D4m0n @d4m0n_8
779 Followers 686 Following Vulnerability Researcher & Exploit Developer | Pwn2Own Winner
h0mbre @h0mbre_
16K Followers 667 Following # Exploit Reliability Engineer # Developing a full-system snapshot fuzzer: https://t.co/mfVXhwoGYD # Avi: https://t.co/3fsQfVprCf
bcoles @_bcoles
734 Followers 631 Following
j00ru//vx @j00ru
37K Followers 821 Following (Mostly) Windows hacker & vulnerability researcher. Google Project Zero. @DragonSectorCTF
Offensive AI Con @OffensiveAIcon
1K Followers 17 Following Year 2 of the first con dedicated to exploring the offensive use of AI. Hosted by RemoteThreat. Oct 4-7, 2026 | Oceanside, CA #OffensiveAICon
Ahmed Y. Elmogy @AhmedYElmogy
33 Followers 1K Following Independent web security researcher and bug bounty hunter.
Zion Leonahenahe Basq... @mahal0z
3K Followers 283 Following Native Hawaiian Hacker | Prev Co-captain of @Shellphish | Incoming Assistant Professor at University of Georgia
RET2 WarGames @ret2wargames
2K Followers 2K Following Our industry-leading platform is the most effective solution for learning modern binary exploitation through a world-class curriculum developed by @RET2Systems
0xTen @_0xTen
2K Followers 875 Following android kernel 0-days/exploits @vigilant_labs / ctfs @cor_ctf and @eltctfbr / prev @osec_io
Ch40s 🏴☠️ @DrCh40s
594 Followers 617 Following Reversing stuffs for fun and always looking for the perfect....former Symantec, RSA, EMC, DELL. Proud RETooling and Malware OPSEC training father.Opinions are…
OpenSecurityTraining2 @OpenSecTraining
10K Followers 17 Following 501(c)3 Nonprofit providing Open Source and Open Access computer security training material. #OST2 re-launched July 2021! [email protected]
Adam Niezabitowski @_0xnobody_
810 Followers 101 Following I love breaking things and putting them back together. Former anti-cheat @pglesports, computer engineering @tcddublin, research @the_secret_club.
Hex-Rays SA @HexRaysSA
9K Followers 153 Following We are a hi-tech company focusing on binary software analysis - IDA Pro and the Hex-Rays Decompiler. ***Discourse Forum: https://community.hex-rays***
Javier Partido Rufo @javierprtd
750 Followers 361 Following Ingeniero Informático por la UPNA. Vulnerability Researcher | Exploit development | Linux user + kernel | Android. CTF player. @[email protected]
Platform Security Sum... @platformsec
986 Followers 4K Following Conference on composable software supply chain integrity and hardware-assisted platform security, with OpenEmbedded, OpenXT and other ecosystems
AsiaCCS @ASIACCS2024
177 Followers 11 Following ACM Asia Conference on Computer and Communications Security (ACM AsiaCCS)
Microsoft BlueHat @MSFTBlueHat
5K Followers 213 Following BlueHat is where the security research community and @Microsoft security pros come together as peers, to connect, share and learn. Run by @MSFTSecResponse
Pavel Yosifovich @zodiacon
15K Followers 917 Following Windows Internals expert, author, and trainer. Teaching system programming & debugging at TrainSec. Check out my books & courses! 🚀 #WindowsInternals #TrainSec
furkanonder @fsyscall
3K Followers 104 Following @thepsf Triage Member | Focusing on CPython #LKD #Python #ArchLinux #Django #eBPF
Anthony Weems @amlweems
3K Followers 271 Following Cloud Vulnerability Research • The opinions stated here are my own, not those of my company.
Ahmed @Mawg0ud
4K Followers 3K Following
Openwall @Openwall
7K Followers 14 Following Infosec focused free software, research, publications, community activities @oss_security. Tweets are announcements. Please direct questions to @solardiz.
Filippo Valsorda @fil... @FiloSottile
45K Followers 1 Following Cryptogopher / Go crypto maintainer / @kateconger-knower / RC F'13, F2'17 / #BlackLivesMatter / he+him https://t.co/ZE4RtJ1xqD / https://t.co/qfth7zr00W / https://t.co/j1grpEm8uR
Open Source Security ... @oss_security
5K Followers 9 Following @Openwall oss-security mailing list thread summaries, currently maintained by @solardiz. Originally setup and maintained as an automated feed by @eugeneteo.
Whale Alert @whale_alert
2.9M Followers 17 Following Live reporting on large and interesting #blockchain transactions as they happen. Create your own alerts with our Alerts API: https://t.co/f1bvV2wban
Michael Saylor @saylor
5.2M Followers 808 Following Bitcoin is https://t.co/KbbYe74DgB | $BTC Hodler | @Strategy Founder & Chairman | bio https://t.co/9Zlq0oHYnP | free education https://t.co/4L1s0ix7FE | $MSTR $STRC
Andy Nguyen @theflow0
69K Followers 447 Following The opinions stated here are my own, not those of my company.
Vignesh Rao @sherl0ck__
1K Followers 458 Following Cyber Security Enthusiast | ex Pwner @teambi0s Mastodon: https://t.co/nhfdgyLawa
Insu Yun @insu_yun
2K Followers 615 Following Associate Professor (Untenured) at KAIST EE #KAIST #HackingLab #GoN
Yordan Stoychev @YordanStoychev
368 Followers 525 Following 21, Security Research @osec_io ■ CTF w/ Perperikon and Team Bulgaria



















