splitline 👁️🐈⬛ @_splitline_
友民党 / CTF with ${cYsTiCk} / @D3VC0R3 / Tâi-gí, zh-TW, en-US, es-PY / 🐈⬛ github.com/splitline Tsu-lô-Kuān, Formosa Joined July 2019-
Tweets346
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That's a wrap on Pwn2Own Berlin 2026! 🏆 $1,298,250 awarded. 47 unique 0-days. 3 days of absolute chaos. And talk about main character energy - congrats to DEVCORE for claiming Master of Pwn with 50.5 points and $505,000 - they never slowed down. See you next year! #Pwn2Own #P2OBerlin
Booyah it's been confirmed! 🎉 splitline (@_splitline_) of DEVCORE Research Team chained 2 bugs to exploit Microsoft SharePoint, earning $100,000 and 10 Master of Pwn points. Massive aura farming this year at #P2OBerlin. Full win! #Pwn2Own
pure logic bug chain to pwn browser no memory corruption found without AI assistance 🍊 is built different omg
Confirmed! Orange Tsai (@orange_8361) of DEVCORE Research Team (@d3vc0r3) chained 4 logic bugs to achieve a sandbox escape on Microsoft Edge, earning $175,000 and 17.5 Master of Pwn points. Full win! #Pwn2Own #P2OBerlin
Honestly, with a little LLM help, I found variants, built a working PoC, and sent a polished patch to maintainer on the same day CopyFail dropped. So I’m curious why Xint didn’t find those variants before disclosure, assuming AI tools are used heavily in their workflow👀 Disclaimer: I’m an independent reporter and the patch author of the xfrm-ESP vulnerability, unrelated to the Dirty Frag post.
💥 Introducing "Dirty Frag" A universal Linux LPE chaining two vulns in xfrm-ESP and RxRPC. A successor class to Dirty Pipe & Copy Fail. No race, no panic on failure, fully deterministic. ~9 years latent. Ubuntu / RHEL / Fedora / openSUSE / CentOS / AlmaLinux, and more. Even
is there any cool non-frontend web ctf challenges this year that aren't llm-solvable 👀
@yuzhinok Three hundred and three
@guttapercha80 @MeeRebus11 @danieleskay However the traditional international name for this island is Formosa, while the ethnic name used by Hokkien-speaking ppl on the island is Taiwan. Yes, even in many Indigenous langs. For example, Amis, which you mentioned we are also called taywan Historical issue is complicated
And this makes sense given how many CTFs are held per year. However, the ideal CTF challenge, in my opinion, should follow this formula: "The author conducted a mini-research project and instead of publishing it, turned it into a challenge."
What I’ve always found amazing about CTFs is that "flag is flag". Whether you found an unintentional solve or pwned the browser with n-day for a XSS challenge, it didn't matter. I totally get the frustration of AI, but there is no solution other than accepting the change.
I started playing CTFs in 2022, and LLMs definitely changed the **competitive** CTF scene a lot, especially since mid-2025. I also started using LLMs in late 2025. Yes, those models did one-shot many challenges, but what's the fun of slopping them? I learned absolutely nothing 🥲
A POC for CVE-2025-55182 gist.github.com/maple3142/48bc…
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++.
Our latest deep dive explores libarchive vulnerabilities under recent Windows 11 updates. 🔍🔓 Check out NiNi's (@terrynini38514) technical write-up for key insights and security implications. Read more here: devco.re/blog/2025/02/1… #VulnerabilityResearch #Cybersecurity
@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 🐈⬛
@TalBeerySec @orange_8361 @BlackHatEvents I read that before, it was quite interesting! You’re right. Unicode normalization has always been a security concern, but I wouldn’t call it the core issue here. For me the root cause is still “Best-fit”. Unicode normalization is more of a broad bug category, like “injection”
Our hackathon for that website Worst.Fit was done successfully 🥰
Our talk at #BHEU is done! Hope you all enjoyed it. 😉 A detailed blog is on the way, but in the meantime, check out the pre-alpha website worst.fit for early access and the slides! Huge thanks to @BlackHatEvents and my awesome co-presenter @_splitline_! 🐈
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
67K Followers 981 Following founder and hacker @zellic_io @v12sec @pb_ctf yt https://t.co/nlNai6iQCn
Huli | lang: zh-Hant-... @hulitw
5K Followers 545 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
3K Followers 638 Following Security Researcher at @d3vc0r3 / Pwn2Own Master of Pwn (Toronto 2022) / CTFer @balsnctf
Jim Huang @jserv
12K Followers 8K 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
C.A.Lee 🇹🇼 @calee0219
502 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
4K Followers 778 Following Founder @ProjectSekaiCTF | Web3 Security Researcher @osec_io | Ex Software Engineer @Microsoft | Chunithm/Maimai 虹レ
ptr-yudai @ptrYudai
6K Followers 356 Following 🍣🍣🍣 https://t.co/5OmzwCTPea 🍣🥺🍣 @zer0pts の猫 🐯 🍣🍣🍣 https://t.co/5OmzwCTPea
Steven Lin @5teven1in
393 Followers 386 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 330 Following AKA mystiz. Tweets on 🇭🇰 and Cybersec. Opinions are my own.
Ark @arkark_
2K Followers 883 Following Into experimental/deprecated features | CTF player | ex-traP
sqrtrev @sqrtrev
5K Followers 716 Following Captain of @SuperGuesser / DEFCON 29 - 34 Finalist Security Researcher @ENKI_official_X
zayne (zeyu) zhang @zeyu1337
3K Followers 2K Following 🇸🇬 | co-founder @hacktronai | @projecteurope_ 🇪🇺 | cs @cambridge_uni 🇬🇧 | prev: @cure53berlin @tiktok_us, ogp | ctfs @water_paddler (def con 31-32🥈)
kurenaif🪄🗝 @fwarashi
6K Followers 3K Following 主にCTFやセキュリティ関連の話題を取り扱うVTuber 衣装のデザインやモデラーなどの情報はこちらから→ https://t.co/IHsDjTJwDK header: @sawararado icon:@Kurage_cc
Griffendor @Griffend0R
0 Followers 178 Following
Thinh Dang @Thinh1777
2 Followers 116 Following
Nulx0x00 @nulx0x00
3 Followers 116 Following
Scanner @scanner_4
5 Followers 930 Following
Rodrigo Nasif @RodrigoNasif
222 Followers 5K Following I am a full-stack creative developer with a passion for cutting edge tech living in Argentina.
Simone Di Maria @dimariasimone
96 Followers 115 Following breaking web2 & web3 for fun. CTF player @TheRomanXpl0it / @mhackeroni / @cyb3rm0nk3ys
0xPK @Hack3r2023123
2 Followers 24 Following
Xa la @Xalahehe
6 Followers 469 Following
Jun-Hong Cheng @qwe854896
7 Followers 27 Following Woohoo! I am Jun-Hong Cheng, and I'm majoring in Computer Science at National Yang Ming Chiao Tung University, Taiwan, enjoying my junior life!
Nonya @ZanshinSec
0 Followers 52 Following
Vũ Vinh @VVinh3007
1 Followers 71 Following
JelyFishhhhhh @JelyFishhhhhh
1 Followers 32 Following
Lil Bindle @YungBindlestiff
100 Followers 5K Following
Abdur rahman rafi @Abdurrahmanraf6
3 Followers 842 Following
cypto diary @kinn181038
2 Followers 67 Following
darkgh0ul @darkgh0u1
140 Followers 3K Following security is just an illusion clouding our mind, thus we are only as secure as our weakest link.
Jawad Saqib @jawadsaqib_
239 Followers 2K Following PNPT | CEH | Cyber Security enthusiast, Pentester, Web Developer, Python + Bash ❤️ Author at https://t.co/pVa55H5BHZ
Anderson Nascimento @andersonc0d3
4K Followers 6K Following Director & Security Researcher @alleleintel
tmp @tmp0x
0 Followers 102 Following
Nakk Le Vaar @k1lstros
511 Followers 2K Following أَلاَ لاَ يَجْهَلَنْ أَحَدٌ عَلَيْنَا ... فَنَجْهَلَ فَوْقَ جَهْلِ الجَاهِلِينَا | @ManUtd & @ufc | Cyber security guy
Jabas @JzabxsaZ
0 Followers 89 Following
Nemuel Wainaina @n3mu3lw
61 Followers 813 Following
grearlake @grearlake
20 Followers 900 Following Smart contract auditor, 80+ H/M findings found in public contests
Oscar A @ojardila
795 Followers 1K Following
hibwyli @hibwyli
20 Followers 440 Following
Manas Ghandat @0xP0ch1ta
98 Followers 350 Following
Shubham mishra @mishra321shu
64 Followers 1K Following Cyber security Engineer, Threat Researcher, WebApp security researcher, Network Security and Cloud Security researcher. Cyber Fraud.
buah limau @BuahLimau29913
1 Followers 263 Following
Prasad @mesiva5
8 Followers 620 Following
ngductung @_ngductung
4 Followers 71 Following
Izhar @halalsecurity
41 Followers 236 Following Exploring where AI systems, agents, and security collide | Consulting @Pdevsecops
Butch Coolidge @vulnerablecodes
91 Followers 2K Following #chess #math #datascience #machinelearning #deeplearning #autonomous #robotics #python #golang #Pwn2Own #zeroday #exploit #redteam #bugbounty #bugbountytips
Atlas Au Ra @sithx077
628 Followers 1K Following Persevere, acomplish great feats, become extraordinary. Either that or embrace death.
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
67K Followers 981 Following founder and hacker @zellic_io @v12sec @pb_ctf yt https://t.co/nlNai6iQCn
Huli | lang: zh-Hant-... @hulitw
5K Followers 545 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
3K Followers 638 Following Security Researcher at @d3vc0r3 / Pwn2Own Master of Pwn (Toronto 2022) / CTFer @balsnctf
Jim Huang @jserv
12K Followers 8K Following "A hacker, a lecturer, a father" // Adjunct faculty at @NCKU_official
TrendAI Zero Day Init... @thezdi
89K Followers 16 Following TrendAI 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
C.A.Lee 🇹🇼 @calee0219
502 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
4K Followers 778 Following Founder @ProjectSekaiCTF | Web3 Security Researcher @osec_io | Ex Software Engineer @Microsoft | Chunithm/Maimai 虹レ
Intigriti @intigriti
209K Followers 666 Following Bug bounty & VDP platform trusted by the world’s largest organisations! 🌍
ptr-yudai @ptrYudai
6K Followers 356 Following 🍣🍣🍣 https://t.co/5OmzwCTPea 🍣🥺🍣 @zer0pts の猫 🐯 🍣🍣🍣 https://t.co/5OmzwCTPea
Steven Lin @5teven1in
393 Followers 386 Following A software engineer interested in Cybersecurity and Machine Learning, and also a CTFer focused on Reverse & Pwn @ BambooFox 🎉.
Samuel Tang @mystiz613
1K Followers 330 Following AKA mystiz. Tweets on 🇭🇰 and Cybersec. Opinions are my own.
Ark @arkark_
2K Followers 883 Following Into experimental/deprecated features | CTF player | ex-traP
sqrtrev @sqrtrev
5K Followers 716 Following Captain of @SuperGuesser / DEFCON 29 - 34 Finalist Security Researcher @ENKI_official_X
bot @securit31482176
15 Followers 307 Following
Microsoft BlueHat @MSFTBlueHat
5K Followers 212 Following BlueHat is where the security research community and @Microsoft security pros come together as peers, to connect, share and learn. Run by @MSFTSecResponse
Frank Wu @FrankOverF1ow
1K Followers 509 Following CTFer, Student, (Rev & Pwn & Automation), DEFCON 33 Finalist Exploring System Security and Porgram Analysis. Hacking with @r3kapig and @S1uM4i for fun.
LJP @ljp_tw
63 Followers 180 Following
Azrael @azraelxuemo
190 Followers 47 Following Independent VR Spoke at BlackHat Europe 2024, Zer0Con 2025, OFF-BY-ONE 2025, BlackHat USA 2025, DEFCON 33, Zer0Con 2026, BlackHat Asia 2026, SAFACon 2026
Thomas Roccia 🤘 @fr0gger_
35K Followers 2K Following AI Security x Threat Intel · Threat Researcher · Creator of #Unprotect & #NOVA · Malware Warlock · Python 🧡 · Prev @Microsoft @McAfee_Labs
Attack and Defense @attackndefense
1K Followers 8 Following @[email protected] - Mozilla's Security Internals for Security Engineers, Security Researchers, and Bug Bounty Hunters.
Alex Moshkov @amoshkov
2K Followers 1K Following Community Bro @ 🟥 Positive Technologies / @PTSWARM / @ptdbugs / @StandoffBB / #PHTalks / #PHDays / #PHCamp
itewqq @lyq_sqsp
2K Followers 675 Following Security researcher @DarknavyOrg. CTF player @0ops_ctf. Somehow got a PhD on hardware stuff @SJTU1896. Opinions/Shitposts are my own.
fox hsiao @pirrer
25K Followers 1K Following https://t.co/ADltMSqInz A starter, Founder of iCook / INSIDE
八音玄古 HenKoo_T... @8imHenKoo
136 Followers 319 Following 大家好，我是從異空間「伏魔薩國」來到台灣的Vtuber... 「八音玄古 Henkoo」歡迎訂閱我的頻道喔^^ #台灣Vtuber #個人勢 #TâiUânLâng #八音起鼓 https://t.co/D8W7A5ZD71 連結樹 https://t.co/5jL2k9Xbmf
dawgyg - WoH @thedawgyg
59K Followers 1K Following #h1415 2020 MVH, Bug Bounty Hunter, Reformed Blackhat. Views/Likes/Retweets do not represent my employer in anyway.
宛如：台語文放... @Oanju_Poleliong
61 Followers 26 Following 我是宛如！ 我一開始絕對毋是陳火舌佮狸屋zero想像出來ê朋友！ 這馬開始兼做一粒台語文放送頭（敢有法度做甲一粒一猶毋知） 會使來遮投稿，予我替你放送：https://t.co/UJxCXPWW82
Xiaobye @xiaobye_tw
112 Followers 326 Following
Anthropic @AnthropicAI
1.3M Followers 36 Following We're an AI safety and research company that builds reliable, interpretable, and steerable AI systems. Talk to our AI assistant @claudeai on https://t.co/FhDI3KQh0n.
joernchen @joernchen
8K Followers 517 Following Your mom's favorite hacker. Also at @[email protected]
spaceraccoon | Eugene... @spaceraccoonsec
26K Followers 314 Following Author of "From Day Zero to Zero Day" - No Starch Press. Every day is 0day! Personal profile - all opinions expressed are my own.
ϻг_ϻε @steventseeley
23K Followers 557 Following Artist disguised as a logician. Pwn2Own Winner. Spiritual Alchemy. An adept in the making.
Security Bug Aggregat... @BugsAggregator
3K Followers 1 Following Aggregate disclosed Chromium security bugs.
Rebane @rebane2001
15K Followers 2K Following 🇪🇪🏳️⚧️ | Archivist | 12 CVEs in Chrome | CSS sophomore | MapartCraft | Puppy | Horse | rebane2001#3716 | Lyra (she/her) 🦊 @[email protected]
pspaul @pspaul95
1K Followers 858 Following source code connoisseur @Sonar_Research | CTF @FluxFingers | @[email protected]
The HOPE Conference �... @hopeconf
17K Followers 342 Following Hackers On Planet Earth - New York City, USA 🗝💻📻☎️ 🐘:@[email protected] • 🦋:@hope.net • ig/threads:hopeconf
Wirebrowser @wirebrowser
162 Followers 4 Following Wirebrowser is a CDP-based runtime instrumentation platform for the browser. Think Frida, but for JavaScript running in Chrome — without monkeypatching.
宝玉 @dotey
223K Followers 2K Following Prompt Engineer, dedicated to learning and disseminating knowledge about AI, software engineering, and engineering management.
Hans Chiu @chiu_hans
14K Followers 762 Following Camera image processing engineer https://t.co/o9tRKzYkMu
BSides Pyongyang @BSidesPyongyang
1K Followers 704 Following 🇰🇵 #BSidesPyongyang2026 : Nov 18 2026 (Missile Industry Day) @ Lazarus HQ Pyongyang & Live Stream | 31st anniversary 🎂 https://t.co/gb9sDPJC8X
The Overseers Collect... @_overseers
177 Followers 7 Following A team for creating a whole new type of CTF experience.
TheSAS2026 @TheSAScon
4K Followers 258 Following #TheSAS2026 Speakers and agenda 👉 https://t.co/cVsRzXMGEv
kernelcon @_kernelcon_
2K Followers 74 Following https://t.co/SdwHu7Ar1f 🏕️Training: 4.7-8. 🌲Con: 4.9-10 🏨 Venue: Hilton downtown Omaha 🪵 CFP is CLOSED 📝 https://t.co/2AVCJMCmYC
こぼり @simesimesiosaba
15K Followers 169 Following 創作漫画「筋肉農家 夏井さん」投稿垢です🌾 筋骨隆々な米農家夏井さんと彼を取り巻くキャラを 趣味で描いています。 たまにその他創作やお仕事の情報もポストします💪
Jiantao Li @CurseRed
2K Followers 399 Following Security Researcher @starlabs_sg , playing CTF with @r3kapig
Jun Kokatsu @shhnjk
6K Followers 124 Following Hacking the Web, Browsers, and Agents. Opinions are my own.
Insomni'hack @1ns0mn1h4ck
9K Followers 40 Following Security conference and hacking contest founded and organized by @orangecyberch since 2008 in Lausanne, Switzerland. CFW is now LIVE!
ShmooCon @shmoocon
27K Followers 21 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 479 Following Join us for Wild West Hackin' Fest - Deadwood 2026! Con: Oct. 7-9, 2026, Pre-Con Training: Oct. 6-7, 2026
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! #barbhack26
安坂星海 Azaka ||... @AzakaSekai_
14K Followers 7K Following ‧₊˚ ⋅ VTuber ⊹˚. Employed CTI Researcher ♡‧₊˚ SV Cover Artist @azakasekaip ✧･ﾟhttps://t.co/h3frxp4AWO *:･˚ @jamama_666 / @MomoiroKohi / @justNovaj / #artsyaz
陳火舌Tân Hóe-ch... @TanHoeChih
2K Followers 969 Following Header & 頭貼 by @kongyu9124 立繪&建模 by @olafufuu 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
5K Followers 76 Following Cybersecurity enthusiasts from DARKNAVY. Achieve, Analyze, Attack *Oops.
Martin Doyhenard @tincho_508
3K Followers 224 Following Security Researcher at PortSwigger. Speaker at BlackHat, DEF CON, RSA, Hack In The Box, Troopers, EkoParty
slonser @slonser_
5K Followers 206 Following Co-Founder @neploxaudit. CTF team @C4TBuTS4D Security Researcher.You might like
