splitline 👁️🐈⬛ @_splitline_
@D3VC0R3 / CTF with ${cYsTiCk} / 友民党 / Taigi, zh-TW, en-US, es-PY / 🐈⬛ github.com/splitline Tsu-lô-Kuān, Tâi-uân Joined July 2019-
Tweets335
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A bit late, but I just published my blog post on bypassing Ubuntu’s sandbox! Hope you enjoy it! u1f383.github.io/linux/2025/06/…
The blog post is the full version of my talk at 38c3. It's about some vulnerabilities we found in libarchive and some interesting behaviors of libarchive that you don't want to miss. My favorite part is it only took us 56 seconds to trigger a crash by AFL++.
The blog post is the full version of my talk at 38c3. It's about some vulnerabilities we found in libarchive and some interesting behaviors of libarchive that you don't want to miss. My favorite part is it only took us 56 seconds to trigger a crash by AFL++.
@dicegangctf @Strellic_ This is just a rumor to make themselves feel better, CTFers doesn't have life and probably all single
🤘Congrats Orange(@orange_8361) and Splitline(@_splitline_) on making it to 2024 Top 10 Web Hacking Techniques! Check out their groundbreaking research: portswigger.net/research/top-1…
I will drop one web challenge there 🐈⬛
Cool findings 🐈⬛
Excited to share our research on Kernel Streaming! We discovered several vulnerabilities in it that we used at Pwn2Own this year. Check it out: devco.re/blog/2024/08/2…
I made one harder challenge 🐈⬛ wargame.d3vc0r3.tw
I made one harder challenge 🐈⬛ wargame.d3vc0r3.tw
I created a Linux Kernel challenge “Halloween” for the HITCON CTF Qual 2024 :). Below are the official writeup for “Halloween” and the unofficial writeups for "v8sbx" and "reEscape". Enjoy it! Halloween & v8sbx: u1f383.github.io/ctf/2024/07/16… reEscape: u1f383.github.io/ctf/2024/07/18…
Dreaming back to 2012 👀
PHP just fixed one of my RCE vulnerabilities, which affects XAMPP by default. Check to see if you are affected and update now! 🔥 blog.orange.tw/2024/06/cve-20…
🎉 ACSC CTF 2024 has been started! 🚀 Have fun and happy hacking! 🖥️💻🔒 #ACSCCTF2024 #CTF #icc #ic3game
🚀 ACSC 2024 (Asian Cyber Security Challenge) is Happening!🚀 📅 March 30-31, 2024 🌟 Mark your calendars! 🔜 Registration opening soon. Don't miss out! More details here ▶️ acsc.asia #ACSC2024 #CyberSecurity #SaveTheDate
Just drop my slide here docs.google.com/presentation/d…
Am I the only non-Japanese CTFer still in Japan since SECCON?
Omg no way

crazyman_army @CrazymanArmy
6K Followers 3K Following CTFer / APT hunter / RedTeam / BlueTeam the member of @r3kapig the leader of @ShadowChasing1 CVE-2022-30190 find job opportunities opinions are own not group
cts🌸 @gf_256
61K Followers 820 Following Co-founder and hacker @zellic_io & @pb_ctf | https://t.co/nlNai6iiMP | 24 Intern @egirl_capital slow to reply to DMs
Huli | lang: zh-Hant-... @hulitw
4K Followers 541 Following Front-end <=> Security | English account: @aszx87410 | 偶爾跟 @Water_Paddler 一起打 CTF | 無聊的時候喜歡寫文章
NiNi @terrynini38514
2K Followers 583 Following Security Researcher at @d3vc0r3 / Pwn2Own Master of Pwn (Toronto 2022) / CTFer @balsnctf
Jim Huang @jserv
12K Followers 7K Following "A hacker, a lecturer, a father" // Adjunct faculty at @NCKU_official
Moriarty @Rudrakshsaini2
2K Followers 2K Following I like cats , computers and ctf’s | Captain @thehackerscrew1 | Slutt datafag
VIE @vie_pls
2K Followers 234 Following Security Engineer @ Google • @mmm_ctf_team and @maplebaconctf • UBC alum
C.A.Lee 🇹🇼 @calee0219
519 Followers 1K Following CS Master in NCTU, Taiwan. Majoring in Infrastructure and Networking. Now working on free5GC project for next generation core network.
sahuang @sahuang97
3K Followers 730 Following Founder @ProjectSekaiCTF | Ex Software Engineer @Microsoft | Chunithm 虹レ | Web3 Learner @taichiaudit (Move/Solana/Rust)
ptr-yudai @ptrYudai
6K Followers 350 Following 🍣🍣🍣 https://t.co/5OmzwCTPea 🍣🥺🍣 @zer0pts の猫 🐯 🍣🍣🍣 https://t.co/5OmzwCTPea Japanese Sushi Hacker (I turn off notification of every SNS/email due to notification anxiety.)
Steven Lin @5teven1in
401 Followers 375 Following A software engineer interested in Cybersecurity and Machine Learning, and also a CTFer focused on Reverse & Pwn @ BambooFox 🎉.
小克 🌤 @littlegoodjack
2K Followers 2K Following Laravel 兼 AWS 小小新創工程師 // 結果現在寫 FastAPI // 但我喜歡研究產品和 UX 欸 // 路線圖可能沒空翻了 🥲 https://t.co/nFVjCoYkDB // #UNIQLO 狂熱粉絲 👉 https://t.co/mdbTJ9Kn7w // Mastodon: https://t.co/9lF6bHliuy
Samuel Tang @mystiz613
1K Followers 333 Following AKA mystiz. Tweets on 🇭🇰 and Cybersec. Opinions are my own.
zayne (zeyu) zhang @zeyu1337
2K Followers 1K Following 🇸🇬 | co-founder @hacktronai | @projecteurope_ 🇪🇺 | cs @cambridge_uni 🇬🇧 | prev: @cure53berlin @tiktok_us, ogp | ctfs @water_paddler (def con 31-32🥈)
maple3142 @maple3142
881 Followers 2K Following 資工系研究生/Graduate student in Computer Science 中文/English/日本語(勉強中) CTF with ${CyStick}: web, crypto
kurenaif🪄🗝 @fwarashi
5K Followers 2K Following 衣装デザイン: @x_xtsukix_x, @yamagami_sayaka, @goroku_jp2 モデル作成 082さま アイコン: @Kurage_cc ヘッダ: @Relm01492355 music: @kirara_magic https://t.co/togI0W0fLQ
Lei @_96F7_
0 Followers 36 Following
Charlotte @brownlee_charlo
270 Followers 3K Following
affane @affaane
56 Followers 550 Following
Ongia Noel @NoelOngia8195
0 Followers 10 Following
Al1min @md_alamina609
21 Followers 343 Following Cyber Security Analyst | | Ethical Hacker | Former : Instructor Department of Electrical & Electronic Engineering, City University, Dhaka Bangladesh
Robin Chiang @arc_testify
21 Followers 514 Following
unclog.speak.tidings.... @clique_exciting
9 Followers 530 Following
LV0 資安小菜🐤 @p0tat0ba11
0 Followers 155 Following
C0re1 @coretheone
19 Followers 408 Following Ing, rockero, viajero, investigador en constante aprendizaje
E11ie @P0int3rNu11
202 Followers 5K Following PlayStation 🎮| GT7🏁🏎️💨| The Last of Us💔🫂| God of War🪓💪🧔♂️| Days Gone🏍️🧟 | GTA Online💲🚗🚓...
Lacoste @Lac0ste_1
0 Followers 174 Following
am @am0o01o1
37 Followers 2K Following
protozeit @ProtoZeit
19 Followers 405 Following
Alex @0xr0y4l
0 Followers 418 Following
PRABHAT KUMAR @ACCESS_DENNID
61 Followers 423 Following The first and most important step toward success is the feeling that we can succeed.
Apoorv Dayal @dayal_apoorv
0 Followers 32 Following
陳火舌Tân Hóe-ch... @TanHoeChih
946 Followers 687 Following Header by @iriii_0408 立繪&建模 by @olafufu3333 想用台語做100件事的寶箱怪。 超愛喝咖啡 ✦精華剪輯✦台語文小幫手✦寫歌詞的人 Tâi-bûn⭕ English⭕ 中文⭕
Vũ Tiến Hòa @_hoavt18
7 Followers 886 Following
SK @SK_SKSKz
8 Followers 136 Following
AI IndieHacker @AI_IndieHacker
5 Followers 142 Following 𝔸𝕀 𝕀𝕟𝕕𝕚𝕖 ℍ𝕒𝕔𝕜𝕖𝕣 | 𝕀𝕟𝕕𝕚𝕖 ℍ𝕒𝕔𝕜𝕖𝕣 | 𝔽𝕦𝕝𝕝-𝕤𝕥𝕒𝕔𝕜 𝕕𝕖𝕧𝕖𝕝𝕠𝕡𝕖𝕣,
dudcom @dudcom3
64 Followers 118 Following 19, d1 dumbass, co-captain @SquidProxyLover + security researcher - Enjoyer of rev, hardware, fuzzing
kibe Mukami @KibeMukami48825
0 Followers 66 Following
Michal Beneš @MIKE_rowaveOven
13 Followers 185 Following AppSec Engineer | Computer Security Student
Ahmed @iSlrm_
18 Followers 714 Following
CYBERDUDEBIVASH @Iambivash007
337 Followers 8K Following 🚀 CyberDudeBivash — Cybersecurity, AI & Threat Intelligence. Blogs, Tools Development Services🌐 https://t.co/j8NFAfvVvy & https://t.co/yXFR35yYd1
Navneet Soni @navn33tSoni
36 Followers 761 Following
Matte @0xMatte
1 Followers 65 Following
Esteban Brenes S @_b0ydC
6 Followers 191 Following Security Research | eWPTx2 | eWPT | CEH Master | eJPT
X @hellococopark
5 Followers 146 Following
الحبر محمد �... @DrydqabMhmd
8 Followers 139 Following
st01c @st01c__
2 Followers 133 Following
Kiows ✡︎ @zzzenkay
14 Followers 386 Following
無花果 @explorer3310
49 Followers 1K Following
crazyman_army @CrazymanArmy
6K Followers 3K Following CTFer / APT hunter / RedTeam / BlueTeam the member of @r3kapig the leader of @ShadowChasing1 CVE-2022-30190 find job opportunities opinions are own not group
cts🌸 @gf_256
61K Followers 820 Following Co-founder and hacker @zellic_io & @pb_ctf | https://t.co/nlNai6iiMP | 24 Intern @egirl_capital slow to reply to DMs
Huli | lang: zh-Hant-... @hulitw
4K Followers 541 Following Front-end <=> Security | English account: @aszx87410 | 偶爾跟 @Water_Paddler 一起打 CTF | 無聊的時候喜歡寫文章
NiNi @terrynini38514
2K Followers 583 Following Security Researcher at @d3vc0r3 / Pwn2Own Master of Pwn (Toronto 2022) / CTFer @balsnctf
Jim Huang @jserv
12K Followers 7K Following "A hacker, a lecturer, a father" // Adjunct faculty at @NCKU_official
Trend Zero Day Initia... @thezdi
83K Followers 16 Following Trend Zero Day Initiative™ (ZDI) is a program designed to reward security researchers for responsibly disclosing vulnerabilities.
Moriarty @Rudrakshsaini2
2K Followers 2K Following I like cats , computers and ctf’s | Captain @thehackerscrew1 | Slutt datafag
VIE @vie_pls
2K Followers 234 Following Security Engineer @ Google • @mmm_ctf_team and @maplebaconctf • UBC alum
C.A.Lee 🇹🇼 @calee0219
519 Followers 1K Following CS Master in NCTU, Taiwan. Majoring in Infrastructure and Networking. Now working on free5GC project for next generation core network.
sahuang @sahuang97
3K Followers 730 Following Founder @ProjectSekaiCTF | Ex Software Engineer @Microsoft | Chunithm 虹レ | Web3 Learner @taichiaudit (Move/Solana/Rust)
Intigriti @intigriti
193K Followers 658 Following Bug bounty & VDP platform trusted by the world’s largest organisations! 🌍
ptr-yudai @ptrYudai
6K Followers 350 Following 🍣🍣🍣 https://t.co/5OmzwCTPea 🍣🥺🍣 @zer0pts の猫 🐯 🍣🍣🍣 https://t.co/5OmzwCTPea Japanese Sushi Hacker (I turn off notification of every SNS/email due to notification anxiety.)
Steven Lin @5teven1in
401 Followers 375 Following A software engineer interested in Cybersecurity and Machine Learning, and also a CTFer focused on Reverse & Pwn @ BambooFox 🎉.
Samuel Tang @mystiz613
1K Followers 333 Following AKA mystiz. Tweets on 🇭🇰 and Cybersec. Opinions are my own.
Insomni'hack @1ns0mn1h4ck
9K Followers 37 Following Security conference and hacking contest founded and organized by @orangecyberch since 2008 in Lausanne, Switzerland.
ShmooCon @shmoocon
27K Followers 22 Following ShmooCon 2025 is Jan 10-12. This account is used primarily to push information. Got questions? Email us at info @ https://t.co/4QO2tJpuhL
Wild West Hackin' Fes... @WWHackinFest
14K Followers 476 Following Join us for Wild West Hackin' Fest - Deadwood 2025! Conference: Oct. 8-10, 2025; Pre-Conference Training: Oct. 7-8, 2025.
Barbhack @_barbhack_
3K Followers 22 Following Barbhack is a cybersecurity conference in south of France. Cybersecurity, Hacking spirit, networking and ... BBQ!! Let's grill some cybersec! #barbhack25
安坂星海 Azaka ||... @AzakaSekai_
11K Followers 6K Following ‧₊˚ ⋅ Indie Comfy VTuber ⊹˚. Employed Threat Intel Researcher ♡‧₊˚ SynthV Cover Artist / Vocal Manip. 🎨: @jamama_666 / @MomoiroKohi / @justNovaj 🖌️: #artsyaz
陳火舌Tân Hóe-ch... @TanHoeChih
946 Followers 687 Following Header by @iriii_0408 立繪&建模 by @olafufu3333 想用台語做100件事的寶箱怪。 超愛喝咖啡 ✦精華剪輯✦台語文小幫手✦寫歌詞的人 Tâi-bûn⭕ English⭕ 中文⭕
yuange @yuange75
19K Followers 1K Following Security researcher, founder of Tencent's Zhanlu Lab @ZhanluLab
DARKNAVY @DarkNavyOrg
2K Followers 50 Following Cybersecurity enthusiasts from DARKNAVY. Achieve, Analyze, Attack *Oops.
Martin Doyhenard @tincho_508
3K Followers 227 Following Security Researcher at PortSwigger. Speaker at BlackHat, DEF CON, RSA, Hack In The Box, Troopers, EkoParty
slonser @slonser_
4K Followers 163 Following Co-Founder @neploxaudit. CTF team @C4TBuTS4D Security Researcher at Solidlab.
ióng 阿勇台語 @AiongTaigi
2K Followers 873 Following 阿勇台語个阿勇. Bí kok lâi ê Formosa sin chū bîn. US & TW language, culture, politics.
Hacktron AI @HacktronAI
2K Followers 6 Following Hacktron is an autonomous vulnerability hunter for ambitious engineering teams. Built by world-class security researchers. Powered by one principle: PoC || GTFO
Anatomist @th3anatomist
410 Followers 34 Following Solana RCE | 1st place @ Immunefi Ethereum Attackathon | DM for Private Web3 Security Audits
Chi-en (Ashley) Shen ... @ashl3y_shen
4K Followers 1K Following Security researcher @TalosSecurity / Ex-Google TAG / Black Hat USA & HITCON Review Board / Organizer of @rhacklette41. My tweets are my own opinion.
Se7en.5 @Se7en_5_Sec
135 Followers 516 Following
Xion @0x10n
4K Followers 123 Following CMU CSD PhD student / 2024 Top#0 Chrome Researcher / P2O Vancouver '24, TyphoonPWN '24/'25, DEFCON CTF 31-33, ... / PPP, KAIST GoN '18, @zer0pts
Mathy Vanhoef @vanhoefm
13K Followers 2K Following Prof. @KU_Leuven | Ex-Postdoc NYU | Network Security & Crypto | FragAttacks & KRACK | https://t.co/cFWyCYRZyH
Charles Fol @cfreal_
4K Followers 667 Following previously @ambionics @LexfoSecurite – blogs: https://t.co/cLoNdCGPU7 https://t.co/JVMLjUzTJU https://t.co/t9a5IcOXSU
STÖK ✌️ @stokfredrik
135K Followers 1K Following Hi.. im that hacker / creative that your friends told you about., 💫🔮
Marius Avram @securityshell
16K Followers 1K Following Web Application Security Consultant @PentestPeople Former @RandomStorm / @Accumuli_Sec / @NCCGroupplc / @DigitalXRAID. Two sons' proud dad!
Yosuke HASEGAWA @hasegawayosuke
13K Followers 592 Following 株式会社セキュアスカイ・テクノロジー取締役CTO / セキュリティ・キャンプ協議会代表理事 #seccamp / CODE BLUE 実行委員 #codeblue_jp / https://t.co/ENsYrOy0qt / 発言は個人の見解によるものですが、2023年からのステマ規制への対応のため所属を明確にしています
HD Moore @hdmoore
87K Followers 509 Following Founder & CEO of runZero (@runZeroInc), previously the founder and lead developer of Metasploit, a CSO, a consultant, and the head of various research teams.
Julien | MrTuxracer �... @MrTuxracer
37K Followers 443 Following Freelancer | #BugBounty | @Hacker0x01 H1-Elite | $1,500,000 Overall Bounties | ❤️ Reversing | Mobile Hacker | https://t.co/pcWduPOt0n
XBOW @Xbow
10K Followers 6 Following Bringing AI to offensive security by autonomously finding and exploiting web vulnerabilities. Watch XBOW hack things: https://t.co/D5Mco1u8zM
sakura @eternalsakura13
8K Followers 190 Following Lead Security Researcher @zellic_io. 2022-2024 Top 3 Chrome VRP. 2023 Top 2 Facebook Whitehat. 2025 MSRC MVRs 9th. BlackHat Asia/USA & Zer0Con speaker.
l33tdawg @l33tdawg
7K Followers 2K Following That HITB guy (@hackinthebox @HITBSecConf) and now OOTB guy (@OOTBconf), Music Producer @dhankasounds, & VP of Global Strategy and Growth @verichains
aslam4dm 🍉 @aslam4dm
43 Followers 227 Following بِسْمِ ٱللَّٰهِ ٱلرَّحْمَٰنِ ٱلرَّحِيْمِ Pentesting stuff https://t.co/frNAsTdRmz views are my own
Daniel Cuthbert @dcuthbert
32K Followers 2K Following Documentary photographer, old creaky hacker. Co-author of @OWASP ASVS standard. Blackhat/Brucon Review Board & Co_chair UK Gov Cyber Security Advisory Board
Ryan Barnett (B0N3) @ryancbarnett
5K Followers 401 Following Web App Defender | Bug Hunter/Triager | Purple Team | Detection Engineering | Author | Senior Threat Research Manager @Akamai_research | OWASP Project Leader ✝️
Godfather Orwa 🇯�... @GodfatherOrwa
24K Followers 2K Following Hacker | Bug Hunter | Cooker | Top 5 P1 Warrior On https://t.co/dzFQH75OWj | LevelUpX Champion | 10+ 0Days/CVEs
smaury @smaury92
4K Followers 2K Following Co-Founder @ShielderSec | Cliff Jumping Lover (23mt max so far) | ♫ I knew all the rules but the rules did not know me. ♫
Matthias Kaiser @matthias_kaiser
6K Followers 1K Following Java/Android Vulnerability Researcher. 0xACED. Ex-Apple. Now @matthiaskaiser.bsky.social
Kévin GERVOT (Mizu) @kevin_mizu
6K Followers 755 Following Researcher for @ctbbpodcast lab 🐛 | DOMLogger++ developer 👨🏻💻 | CTF with @FlatNetworkOrg, @rhackgondins 🦦 | @ECSC_TeamFrance 2023 🇫🇷
Ì-THUÂN 意傳科�... @Ithuan_Tw
526 Followers 11 Following 台語文專業 ê 資訊公司,ǹg-bāng 透過台語 AI 產品開發,起造多元語言 ê 科技環境。 Taiwan-based AI software company, focused on promoting equal access to technology for Taiwanese languages.
watchTowr @watchtowrcyber
9K Followers 13 Following watchTowr enables organizations to get ahead of in-the-wild exploitation with Preemptive Exposure Management technology.
チュン吉✌️ @TK049ccn
10K Followers 865 Following 日本人/20↑/BL/OC/Webtoon//AI学習禁止 【📒SKEB📒https://t.co/mTRkYwaGr7 】
chompie @chompie1337
83K Followers 1K Following hacker, weird machine mechanic, X-Force Offensive Research (XOR)