Gijs H @gijs_h
Joined March 2011-
Tweets129
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Followers227
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Following270
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Likes9
The FalconForce journey continues! We have moved into our new office in Utrecht! To customize the new space, graffiti artist Karski (MooieMuur.nl) created an amazing mural for us! 😎 🤫 We have plenty of room for new colleagues! Check: falconforce.nl/en/jobs/
Want to join our awesome team and help our clients be more secure? Feel free to reach out
The registration for the #SHA2017 CTF teaser round is now open! Register at ctf.sha2017.org
The team that is the 1st to solve all the challenges of the #SHA2017 CTF Teaser will win 4 tickets for SHA2017!
The #SHA2017 CTF Teaser round takes place on Saturday the 10th of June 2017, 14:00 - 22:00 (CEST). A total of 8 hours.
I just wish we had more infosec firefighters, rather than so many standing around with lighters, helpfully pointing out flammables.
PSA: hackers have no powers -- it's only because things are insecure/vulnerable that hackers can do anything.
Once you have seen enough vulns, you realize that obscurity is as valid a security layer as security boundaries are: danielmiessler.com/study/security…
Can't believe Apple didn't invite Trump's 10 year old son to their bug bounty thing. He's really good at computers I hear
First two steps in setting up new Windows machine always 1. use IE/Edge to download Chrome 2. use Chrome to download VLC
2nd place CTF at #HITB2016AMS: Dutch team Hack.ERS (@hackersftw). Excellent work guys!
Final scoreboard of the #HITB2016AMS CTF. We managed to end up on the 2nd place. Top 3 position 4th year in a row!
"Famous quotes are often just standard sentences attributed to someone widely known" - King Kong
One of my favorite TED talks from the 2016 conference, from a neuroscientist working on recording people's dreams: ted.com/talks/moran_ce…
Star Wars and infosec. You’re convinced you need Death Stars to keep you secure, when actually you should teach your stormtroopers to shoot.
First they ignore you, then they laugh at you, then they fight you, then you native on Windows. #bash #build2016
And the @nokia #Hackathon winners are: Teams @Deloitte & @FSecure Congrats and welcome to the Security Center Berlin

Olaf Hartong @olafhartong
17K Followers 965 Following @FalconForceTeam | researcher with a camera | Microsoft MVP | Snow man role model
Thijs Bosschert @ThiceNL
1K Followers 201 Following Security, IR & SOC professional. Escape room & game creator. Sometimes plays CTFs with Eindbazen, Jobless Hackers & Spotless.
Marc Smeets @MarcOverIP
5K Followers 435 Following Does a thing or two with red teaming @OutflankNL | part time race and drift car instructor
Cas van Cooten @chvancooten
10K Followers 673 Following Benevolently malicious offensive security enthusiast || OffSec Developer & Malware Linguist || NimPlant & NimPackt author || @ABNAMRO Red Team
FalconForce Official @falconforceteam
3K Followers 337 Following Building a resilient digital society through highly specialised digital security consulting.
Oscar Koeroo @okoeroo
4K Followers 2K Following High-performance security, Concern CISO MinVWS, Kobayashi Maru, #OpCyberpaint, Daddy^2, Husband, Hacker, Creative.
JMP RSP @0xffhh
397 Followers 332 Following offensive security addict. @falconforceteam co-founder. speed maniac.
Paul Ducheine @PaulDu... @paulducheine
5K Followers 977 Following Professor for Cyber Warfare (NLDA), Sr Research Fellow Military Law & Cyber Operations (UvA), Landmacht & vz Traditiecommissie, Mr-LLM, Genist, Kitesurf, Zeeuw
GJ @gertjanbruggink
1K Followers 411 Following Builder, Cybersecurity Contrarian & Film buff obsessed with systems thinking | Founder & CEO @venationdigital
Two Seven One Three @TwoSevenOneT
2K Followers 1K Following Chief Security Officer (CSO) || Security Researcher at https://t.co/YsorB5YEAu || Penetration Tester || Red Teamer || Social Engineering Awareness Trainer
Satoshi Stacker priva... @StackrrSat0shi
132 Followers 4K Following Crypto Investor & analyst. Not Financial Advice
Taurean Cole @TaureanC78401
0 Followers 167 Following Recruiting webshell engineers to penetrate websites, with a monthly salary of up to $100,000. If interested, please contact https://t.co/T9gbbB9TvG
Lisa @lisaharper81
159 Followers 3K Following
Anita @anita68helm
164 Followers 3K Following
OrangeCon @OrangeCon_nl
1K Followers 217 Following The New Dutch Cybersecurity Conference! Experience the Hackers Community in Amsterdam, on September 5th!
Menuisier @HunterX0day
372 Followers 301 Following
dragosr @dragosr
24K Followers 9K Following Stop, Think, Pwn! (see also @[email protected], https://t.co/BjclXYWQ9R for alternate)
Father Rob @rschapman
583 Followers 4K Following Cybersecurity/Infosec by day and camping by weekend. Comments do not represent folks I work for.
Frank Wiersma @frankwiersma_
193 Followers 4K Following Ethical Hacker | Cyber Security Professional | OSCP | Experimenting with VR ᯅ, LLM, GenAI
goproslowyo @goproslowyo
1K Followers 4K Following Hacker. (SRE|DevOps|Cloud|Security) Professional. prev:🚀, @Google, @Apple and @Twilio/@SendGrid who's tweets are these? they're definitely not mine
Brandon George @TallJohnBrown
405 Followers 1K Following Unity, Struggle, Unity || Unangax̂ || My thoughts are my own nightmare || He/Him
Michael Johnson "MJ" @RealMJ_here
281 Followers 2K Following 100% Blue teamer focusing on building detections/telemetry. My opinions are my own.
Henry @ESKUILTA
265 Followers 3K Following Online FFXIV and WoW player. Offline Dungeon & Dragons DM & player. Nonspecialized field services IT Guy. User support, SysAdmin, Networking, & Infosec.
Patrick @I_AM_1970
654 Followers 549 Following Principal Consultant. The guy your sysadmin told you not to worry about. Burn like hot coffee. Kinda sweet like toffee. Look what this red team done taught me..
Chirag Savla @chiragsavla94
3K Followers 5K Following With Knowledge We Know the Words.. But... With experience We Know their Meaning ! #HOF #Microsoft #BigBasket
Fabian Bader @fabian_bader
9K Followers 813 Following #Security #Azure #AAD #MDE #M365 #AD #PKI Microsoft MVP Tweets and opinions are my own @[email protected]
[email protected]... @rpargman
4K Followers 5K Following Слава Україні! Most important job: being Dad; I also love to help people deny attackers the opportunity to break and steal all the things. Pronouns: He/him
_____ @H_ng_an
187 Followers 2K Following
Phishing Radar @PointerRadar
152 Followers 2K Following Linux | Ethical Hacker | Security Enthusiast | Python | Bug Hunter | sushi lover | 🍣 👾 🤖 🇨🇴
Ankur @Ankuryogi11
345 Followers 6K Following
Ruben Rodriguez @ruben_rodr
259 Followers 3K Following
Florian Ecard @florian_ecard
12 Followers 55 Following Founder of Hackmosphere, we provide services around ethical hacking and IT security trainings.
jen @eijnxh
19 Followers 1K Following
Swissky @pentest_swissky
20K Followers 2K Following RedTeam | Pentest Author of PayloadsAllTheThings & SSRFmap https://t.co/w1ZLRqoafG
Rombout de Backer @rombout
39 Followers 225 Following
Jason Smithz @smithz_jason
8 Followers 5K Following
rayh4c @rayh4c
2K Followers 4K Following
angerman @hybrid_angerman
71 Followers 293 Following Infosec enthousiast since 1999, Threat Intelligence & Hunting, Hacking, Sci-Fi, geek, petrol head, husband, dad, hybrid personality, little weird, loves life.
yeshuibo @yeshuibo
106 Followers 6K Following
Matt @MattETurner
777 Followers 2K Following
CovertNomad @CovertNomad
31 Followers 1K Following
J⩜⃝mie Williams @jamieantisocial
10K Followers 7K Following threats && stuff || #UNC1799 forever 🤘|| @DistrictHeather ♥️ + 🍷 **𝚅𝚒𝚎𝚠𝚜 𝚎𝚡𝚙𝚛𝚎𝚜𝚜𝚎𝚍 𝚊𝚛𝚎 𝚖𝚈 օ𝚠𝚗**
yairx @yairx99
117 Followers 1K Following Breaker/Fixer of Things | Enquirer of Human Thought and 0s and 1s | Tweets are my own thoughts & do not represent my employers
-Yiannis- @Sec_GroundZero
3K Followers 524 Following Pentester / RnD / developer of the #WarBerryPi and sometimes just ¯\_(ツ)_/¯. https://t.co/VB1rHghqUx. Opinions and tweets represent me not my company.
Olaf Hartong @olafhartong
17K Followers 965 Following @FalconForceTeam | researcher with a camera | Microsoft MVP | Snow man role model
vx-underground @vxunderground
368K Followers 290 Following The largest collection of malware source code, samples, and papers on the internet. Password: infected
Adam Chester 🏴�... @_xpn_
36K Followers 501 Following Hacker for Hire at @SpecterOps | Blog at https://t.co/tjfTOllCEu | Insta at https://t.co/PqR6CZPwjl
Thijs Bosschert @ThiceNL
1K Followers 201 Following Security, IR & SOC professional. Escape room & game creator. Sometimes plays CTFs with Eindbazen, Jobless Hackers & Spotless.
b33f | 🇺🇦✊ @FuzzySec
33K Followers 1K Following 意志 / Antiquarian @ IBM X-Force / t501 / Ex-TORE ⚔️🦅 / I rewrite pointers and read memory / AI Psychoanalyst / Teaching @CalypsoLabs
FalconForce Official @falconforceteam
3K Followers 337 Following Building a resilient digital society through highly specialised digital security consulting.
Grzegorz Tworek @0gtweet
36K Followers 2K Following My own research, unless stated otherwise. Not necessarily "safe when taken as directed". GIT d- s+: a+ C++++ !U !L !M w++++$ b++++ G-
Dominic Chell 👻 @domchell
18K Followers 540 Following Just your friendly neighbourhood red teamer @MDSecLabs | Creator of /r/redteamsec | https://t.co/3k3EBAZqGd | https://t.co/KwO2OwDOkl
@mikko @mikko
229K Followers 930 Following Researcher and a best-selling author. Keynote talks at RSA, Black Hat & DEF CON. TED Speaker. Chief Research Officer at WithSecure.
James Forshaw @tiraniddo
49K Followers 339 Following Security researcher in Google Project Zero. Author of Attacking Network Protocols. Tweets are my own etc. Mastodon: @[email protected]
Jorge Orchilles @jorgeorchilles
11K Followers 474 Following SANS Principal Instructor & Author #SEC565 | #RedTeam | #PurpleTeam | #PenTest | #C2Matrix Creator | ATT&CK & Atomic Red Team Contributor | Published Author
CCob🏴�... @_EthicalChaos_
9K Followers 437 Following Ceri Coburn: Hacker | R̷u̷n̷n̷e̷r̷ DIYer| Vizsla Fanboy and a Little Welsh Bull apparently 🏴 Author of poorly coded tools: https://t.co/P6tT2qQksC
Will Schroeder @harmj0y
48K Followers 957 Following Researcher @SpecterOps. Coding towards chaotic good while living on the decision boundary.
JMP RSP @0xffhh
397 Followers 332 Following offensive security addict. @falconforceteam co-founder. speed maniac.
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
Two Seven One Three @TwoSevenOneT
2K Followers 1K Following Chief Security Officer (CSO) || Security Researcher at https://t.co/YsorB5YEAu || Penetration Tester || Red Teamer || Social Engineering Awareness Trainer
ProCyclingStats.com @ProCyclingStats
114K Followers 5K Following World's most popular online Cycling Results database #SharingPassion email: [email protected]
Brad Spengler @spendergrsec
4K Followers 4 Following President of @opensrcsec, developer of @grsecurity Personal account
Andrew McCarthy @AJamesMcCarthy
417K Followers 653 Following Exploring the universe from a backyard in Arizona. Get early access to my next print release 👇
Jure Atanackov @JAtanackov
6K Followers 944 Following Chasing storms and northern lights on the sunny side of the Alps. Meteors, meteor showers & meteorites. Active tectonics and earthquake hazard. Views my own.
Alex Plaskett @alexjplaskett
12K Followers 571 Following Security Researcher | Pwn2Own 2018, 2021, 2022, 2024 | Posts about 0day, OS, mobile and embedded security.
Hashem Al-Ghaili @HashemGhaili
32K Followers 7 Following I dedicate this page to sharing my passion for science, technology and nature with all of you.
Matt Shumer @mattshumer_
95K Followers 1K Following CEO @HyperWriteAI, @OthersideAI, creator of https://t.co/PSUlubx5bb (Github for prompts), investor in @GroqInc @Etched @Rork_App @OpenRouterAI + many more
Matt Pocock @mattpocockuk
200K Followers 737 Following I teach devs for a living. Author of Total TypeScript and AI Hero. Ex-@vercel. Used to be a voice coach.
swyx 🇸🇬 @swyx
125K Followers 3K Following achieve ambition with intentionality, intensity, & integrity - @smol_ai - @dxtipshq - @sveltesociety - @aidotengineer - @coding_career - @latentspacepod
Pierre Bongrand @bongrandp
2K Followers 908 Following AI Researcher working on RNA @Harvard - Entrepreneur Prev: AthenAI (founder) / @TUDelft / @EPFL
Prajwal Tomar @PrajwalTomar_
44K Followers 187 Following I build MVPs for founders in 21 days at @ignytlabs and teach others how to do the same inside @aimvpbuilders
Sebastian Raschka @rasbt
354K Followers 1K Following ML/AI researcher & former stats professor turned LLM research engineer. Author of "Build a Large Language Model From Scratch" (https://t.co/O8LAAMRzzW).
Andrew Ng @AndrewYNg
1.3M Followers 1K Following Co-Founder of Coursera; Stanford CS adjunct faculty. Former head of Baidu AI Group/Google Brain. #ai #machinelearning, #deeplearning #MOOCs
Matt Harrison @__mharrison__
166K Followers 881 Following Python 🐍 + Data Science 🚀 trainer @__metasnake__ 🦜 Speaker ✍ Author 👨🏫 Instructor (@Stanford) 📣 DM for Sponsorship
Yann LeCun @ylecun
949K Followers 764 Following Professor at NYU. Chief AI Scientist at Meta. Researcher in AI, Machine Learning, Robotics, etc. ACM Turing Award Laureate.
Kirk Borne @KirkDBorne
469K Followers 6K Following Advisor to startups. Freelancer. Founder of @LeadershipData. Global Speaker. Top influencer #BigData #DataScience #AI #IoT #ML #B2B. PhD Astrophysics @Caltech
Data Science Dojo @DataScienceDojo
216K Followers 950 Following We make learning data science and LLMs easy! Join the community of 10,000+ professionals. #DSDojo
Mark Tenenholtz @marktenenholtz
137K Followers 624 Following Head of AI @PredeloHQ. Building reliable agents. XGBoost peddler, transformer purveyor.
Bojan Tunguz @tunguz
252K Followers 8K Following ML ex Nvidia. Creator of @trainxgb. Data Scientist. Physicist. Catholic. Husband. Father. Stanford Alum. Memelord. e/xgb. AMDG.
elvis @omarsar0
263K Followers 664 Following Building with AI agents @dair_ai • Prev: Meta AI, Galactica LLM, Elastic, PaperswithCode, PhD • I share insights on how to build with AI Agents ↓
François Chollet @fchollet
572K Followers 813 Following Co-founder @ndea. Co-founder @arcprize. Creator of Keras and ARC-AGI. Author of 'Deep Learning with Python'.
Santiago @svpino
424K Followers 515 Following Computer scientist. I teach hard-core AI/ML Engineering at https://t.co/THCAAZcBMu. YouTube: https://t.co/pROi08OZYJ
Elie Steinbock @elie2222
12K Followers 3K Following Building your AI executive assistant for email. 15k users. https://t.co/0MTUhgDLIE | Cursor Ambassador | YouTube on open source: https://t.co/qf66pPJzgf
Eyal Toledano @EyalToledano
17K Followers 2K Following ceo @usehamster + eliminating ai context loops @TaskmasterAI, shopify apps & micro-saas 💎 investing $500k ➡️ $1.5m ➡️ $5m @ https://t.co/qJpQGvznSf @microangel_
Bryan Johnson @bryan_johnson
646K Followers 759 Following Conquering death will be humanity’s greatest achievement.
Panos Gkatziroulis �... @netbiosX
25K Followers 812 Following Red/Purple Teamer | Blogger | Ex-Director @pentestlabltd | Mod @ https://t.co/1nzjl9KpSH | https://t.co/mIM1GA1mN4
Eureka Labs @EurekaLabsAI
73K Followers 1 Following We are building a new kind of school that is AI native.
Everyday Astronaut @Erdayastronaut
2.0M Followers 619 Following Professional rocket orientation specialist, explainer of flamey stuff and rocket chaser. Bringing space down to Earth for everyday people 🚀
Wim Goorman @Wgoorman
8K Followers 2K Following
Elliot Arledge @elliotarledge
18K Followers 2K Following 21 | instructor @freecodecamp probably timelapsing my life away
Robert Scoble @Scobleizer
538K Followers 17K Following The best from AI community | Ex-Microsoft, Rackspace, Fast Company | Wrote eight books about the future | Silicon Valley robots, holodecks, BCIs, and startups.
sierra catalina @sierracatalina1
31K Followers 4K Following robots are cool I guess | anti-anthropomorphism | trying to prevent skynet | ex @xAI @prontoAI 
Rick de Jager @rdjgr
1K Followers 606 Following CyberSecurity student at @TUeindhoven - CTF with Superflat / @0rganizers / ICC team Europe 22/23/24/25
OrangeCon @OrangeCon_nl
1K Followers 217 Following The New Dutch Cybersecurity Conference! Experience the Hackers Community in Amsterdam, on September 5th!
Alex Matrosov @matrosov
19K Followers 2K Following 🔬Founder & CEO @Binarly_io, #codeXplorer, #efiXplorer, @REhints and "Rootkits and Bootkits" book. Previously worked at Nvidia, Cylance, Intel, ESET, Yandex.
Lee Chagolla-Christen... @tifkin_
14K Followers 816 Following I like making computers misbehave. Does stuff at https://t.co/YsrVyTjh8z. https://t.co/UsRIholree https://t.co/54TYQgSLiZ
Jordan Wiens @psifertex
6K Followers 1K Following Worst developer among many good ones making https://t.co/XCCx7ECxEH Posting over on https://t.co/BdeDxso5n7 as well.
Rowan Cheung @rowancheung
564K Followers 513 Following Founder of the world’s most read daily AI newsletter @therundownai. Sharing the latest developments in the world of artificial intelligence.
Andrej Karpathy @karpathy
1.4M Followers 1K Following Building @EurekaLabsAI. Previously Director of AI @ Tesla, founding team @ OpenAI, CS231n/PhD @ Stanford. I like to train large deep neural nets.