Sam Stepanyan @securestep9
@OWASPLondon Chapter Leader (#OWASP #OWASPLondon). OWASP Board Member. Application Security (#AppSec) Consultant. OWASP #Nettacker Project leader. #CISSP medium.com/@securestep9 London, UK Joined September 2013-
Tweets5K
-
Followers7K
-
Following4K
-
Likes11K
Good morning from the #OWASP Global AppSec EU 2026 Conference in Vienna, Austria where @JoshCGrossman just kicked off this amazing conference with 1000+ attendees, 45+ speakers, lots of workshops and activities - check out the agenda here: 👇 owaspglobalappseceuvienna20.sched.com/list/simple
Attending and speaking at the #OWASP Global AppSec EU 2026 Conference in Vienna, Austria this week! This year’s conference is particularly special as the OWASP Foundation celebrates 25 years! Welcoming everyone alongside fellow OWASP Board Member L B Ricardo Griffith!
#Fortinet: 74,000 Fortinet firewall and VPN credentials exposed in a data leak dubbed "#FortiBleed" are exploited by attackers across government and private-sector organizations worldwide: 👇 bleepingcomputer.com/news/security/…
@EvanMendenhall_ @ssi @geoffreyhinton @DarioAmodei Try asking ChatGPT: show all metadata about me
#ChatGPT: The latest public version of ChatGPT generates scenes of gruesome graphic violence with a simple prompt, British AI security startup @mindgard researchers have told the BBC, concerned that AI created gore "of its own volition": #AISafety 👇 bbc.co.uk/news/articles/…
#PaloAlto: if you are using Palo Alto #GlobalProtect VPN be aware that CVE-2026-0257 vulnerability allowing attackers to bypass authentication and establish VPN connections is now under active exploitation. Check your logs for IOCs: 👇 thehackernews.com/2026/06/palo-a…
Anthropic withdraws access to powerful AI model after US government order Read more 🔗 trib.al/kspkqgK
#Veeam: Veeam has released security updates to patch a critical Backup & Replication security flaw that can be exploited to gain remote code execution (#RCE) vulnerability CVE-2026-44963 on domain-joined backup servers: 👇 bleepingcomputer.com/news/security/…
#ServiceNow has been breached - a vulnerability allowed threat actors unauthorised access to customer data: 👇
‼️🚨 BREAKING: ServiceNow confirms a vulnerability let unauthorized actors query customers' instance tables. Customer instance data was directly accessible.
#LiteLLM command injection vulnerability CVE-2026-42271 that could allow any authenticated user to run arbitrary commands on the host, has been added to the CISA KEV catalog: 👇 thehackernews.com/2026/06/litell…
Every time a major company tells users to run "curl url | bash" to install thier tool, it irresponsibly normalizes a dangerous security anti-pattern. You should be promoting secure behavior by default, not the other way round:
Can we PLEASE for the love of all that his holy STOP NORMALIZING THIS INSTALL METHOD
#NPM: New "#IronWorm" supply-chain attack: 30+ npm packages from @ #asteroiddao shipped a malicious #Rust binary firing on preinstall stealing developer credentials, tokens, secrets and self-propagating. #malware #SoftwareSupplyChainSecurity 👇 cyberpress.org/ironworm-targe…
#DDoS: New 'HTTP/2 Bomb' DoS attack crashes major web servers in under a minute. Impacted servers include #NGINX, #Apache HTTP Server, Microsoft #IIS, Envoy, and Cloudflare Pingora. This vulnerability was discovered by Codex AI agent. CVE-2026-49975: 👇 bleepingcomputer.com/news/security/…
#RedHat: More than 30 #npm packages under Red Hat's '@redhat-cloud-services' namespace were compromised in a supply-chain attack to steal developer credentials including GitHub secrets, AWS/Azure/GCP credentials, npm & PYPI tokens: #SoftwareSupplyChain 👇 bleepingcomputer.com/news/security/…
#Instagram: It was possible for attackers to hijack Instagram accounts using nothing but the username of the target account. An AI support chatbot could then be easily convinced to send a password reset URL to an arbitrary email address. Obama was one of the victims: #AISecurity
‼️🚨 BREAKING: Meta's AI feature let attackers hijack Instagram accounts for days with nothing but a username. It was being A/B tested on a slice of users, and if you were in the test, you couldn't turn it off. Among the casualties: the official Obama White House account. The
#GhostCMS: Critical SQL Injection vulnerability impacts #Ghost 3.24.0 through 6.19.0, and allows unauthenticated attackers to read arbitrary data from the website database, including the admin API keys (CVE-2026-26980): 👇 bleepingcomputer.com/news/security/…
The spiralling costs of using AI are becoming a real problem: Microsoft stops using Claude Code, Uber burned their entire 2026 AI budget back in April, Salesforce, Meta and even Amazon are limiting the "tokenmaxxing" culture. #AICosts fortune.com/2026/05/22/mic…
$148,337 #BugBounty paid by Google to a researcher (@brutecat) who found debug endpoints on Google Cloud allowing to configure privileged workflows leading to full #RCE in Google Cloud production (CVE-2026-2031) #CloudSecurity #BugBountyTips 👇 brutecat.com/articles/googl…
Do you watch Netflix in your free time? Try hackflix for security conference talks h4ckfl1x.com #cybersecurity #bugbounty
Ben Sadeghipour @NahamSec
248K Followers 1K Following Cofounder @hackinghub_io | Advisor @CaidoIO. I hack companies and make content about it. #NahamCon organizer. ex @hacker0x01🇮🇷
JS0N Haddix @Jhaddix
176K Followers 7K Following CEO, CISO, Trainer, Hacker, and Speaker. Cybersecurity + Hacking + AI + Sec Leadership @arcanuminfosec
The XSS Rat - Proud X... @theXSSrat
166K Followers 1K Following Bug bounty profiles: https://t.co/3Uz5K130ah https://t.co/rzbqV5AmZ2 https://t.co/CDlzXdNvPB
Katie Paxton-Fear @InsiderPhD
97K Followers 2K Following Dr, apparently. Security Adovcate @semgrep & Hacker. #BugBounty hunter & #infosec YouTuber. APIs & Interlinked OffSec, PhD in AI+Sec @hacknotcrime. she/her
bugcrowd @Bugcrowd
199K Followers 6K Following The leading provider of crowdsourced cybersecurity solutions purpose-built to secure the digitally connected world...Unleash Ingenuity™
Lisa Forte @LisaForteUK
58K Followers 4K Following Cyber Security - Partner @redgoatcyber - Climber / Caver. she/her
Daniel Cuthbert @dcuthbert
33K 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
Md Ismail Šojal �... @0x0SojalSec
45K Followers 5K Following Cyber_Security_Re-searcher || Ai Re-searcher || AI-Sec|| Malware Analysis II iOS || Pwn || 0SINT || Project AI-StrikeSec || 0ldAccounts Suspended @0xSojalSec ||
payloadartist @payloadartist
46K Followers 291 Following I discuss AI, Cybersecurity & Hacking • Helped secure organizations like Google • Opinions are my cat's • Part-time shitposter
Bug Bounty Reports Ex... @gregxsunday
54K Followers 613 Following Grzegorz Niedziela - a hacker who documents his hacking journey by creating and curating the best content about bug bounty and offensive security.
Gareth Heyes \u2028 @garethheyes
38K Followers 1K Following Web security researcher at PortSwigger. Author of JS for Hackers and Hackvertor. https://t.co/e0aNEbFb9D
Louis Nyffenegger @snyff
21K Followers 603 Following Founder/CEO/Trainer/Researcher/CVE archeologist @PentesterLab. Security engineer. Bugs are my own, not of my employer...
𝔅͛𝔯͛𝔦͛�... @brianwhelton
16K Followers 1K Following Network/Security chap, guitarist, cert junkie, F1 fan, festival, gig & conference attendee. I stroke cats & drink tea! All views are possibly mine...
HackerOne @Hacker0x01
338K Followers 3K Following HackerOne makes security continuous. We unite AI and human insight through a unified platform to expose risk and eliminate it.
Tanya Janca | Shehack... @shehackspurple
50K Followers 2K Following Secure Coding Trainer, Best-selling author of Alice and Bob Learn Secure Coding & Alice and Bob Learn Application Security. #AppSec she/her 🌻
Youssef Sammouda (sam... @samm0uda
41K Followers 590 Following Security Researcher/Hacker 1st in Meta bug bounty program for 6 years Opinions are my own and not my employer's.
Phillip Wylie @PhillipWylie
52K Followers 20K Following Chief Security Evangelist & Sr. Consultant & @suzulabs | Offensive Security Expert | Phillip Wylie Show Podcast Host @thehackermaker | @pentesterblue coauthor
Hamaza5555 @hamaza5555
20 Followers 887 Following
Rizki Fauzan @RizkiFauza62338
0 Followers 17 Following
GEVUSH ARAQELYAN 🇦... @GevushAraqelyan
1K Followers 7K Following GEVUSH ARAQELYAN 🇦🇲 (Duduk player, singer, songwriter, psychologist, culturalist, lecturer, football player and businessman🎷🎤📚⚽️ (+37477176071)
baalachndhren @balachandhren
80 Followers 482 Following
Oscar Cardoso @vryand
279 Followers 674 Following Poor prodigy kid (UnEncouraged, UnRecognized UnTapped or Channeled Correctly) WorldObserver FreeThinker {WantMinds NotFollowers} NoBots
clairee18 @amineek_
6 Followers 319 Following main character energy, side character life 🎬 always follow back
Rafael David Tinoco @rafaeldtinoco
680 Followers 571 Following Security, eBPF, Internals, Tracing at Miggo | Former Tracee and Jibril Runtime Security Maintainer, Ubuntu Core Developer and Mainframer
omkar daphale @daphale9
0 Followers 30 Following
Tzubu🪫⤵️🦥�... @Tzubu1
43 Followers 3K Following breather, eater, sleeper, farter, pooper. i read drawings. Mentally rekt
OWASP Web Security Te... @owasp_wstg
4K Followers 77 Following Official account of WSTG, the most comprehensive open source guide for testing web apps and services since 2004. That's right, I was around before Twitter.
V Sai Mahidhar @VSaiMahidhar1
8 Followers 82 Following Building Corefix (https://t.co/P95jBoi8vp) & BranchHub (https://t.co/B88FLPhU67). Built DeepTraQ AI (https://t.co/iuYU4gvWfh) | Hacker | @IITHyderabad ’21 🚀
Merritt Baer @MerrittBaer
13K Followers 8K Following Chief Security Officer. company advisor. former: @AWS OCISO, USG security. work: emerging tech, infosec, AI security, crop tops, future of internet
Secureintent.ai @Secureintent_ai
24 Followers 200 Following AI security + developer chaos 💀 Preventing “just for debugging” moments Join our Discord ↓ https://t.co/6cXagdhTGM
Abdur rahman rafi @Abdurrahmanraf6
8 Followers 897 Following
zahra @AlyZhra21373
38 Followers 1K Following
Lukaz @Lukaz_0001
0 Followers 15 Following
RAY4Sec @RAY4Sec
53 Followers 432 Following Where stealth meets precision | Junior Penetration tester
Joe Blanchard @xmoxxen
198 Followers 468 Following Chief Security Officer (CIO/CSO) #hashgraph -- Supporting #hedera #hbar Opinions are my own.
Moshe Siman Tov Busta... @MosheTov
1K Followers 513 Following Security Research Team Lead @OX__Security Guitars @CompileBand 23x CVEs 3x Conference Talks
Zetzoz @zetzoz
7 Followers 512 Following
weather @twz7BEqF7ZXjJe2
0 Followers 55 Following
soles.subies.spurs @coys4tw
72 Followers 419 Following #COYS #TTID #RaiderNation #TeamLeBron #SacRepublicFC #SacramentoKings Opinions are my own.
Hantao Zang @HantaoZang
598 Followers 328 Following
Capouet @_Helron
6 Followers 628 Following
mitiuter2 @mitiuter2
0 Followers 132 Following
Tony Ojelel @fire_tony123
613 Followers 6K Following Experienced Software Engineer & Mechanical Engineer. Algorithms & Open source enthusiast. Proficient in multiple programming languages.
Naveen Kumar @the_realNaveen
179 Followers 7K Following
Cattom @Cattomdhoh
1 Followers 89 Following
bsforvt727 @bsforvt727
88 Followers 795 Following Independent Malware Hunter and Analyst https://t.co/zUDEQGwFxq… https://t.co/xwQGWABoCD
HAIDER @UzairHaider502
19 Followers 853 Following
MAk @BugBountyBeast
7 Followers 1K Following
t e r m i r e u m @termireum
1K Followers 3K Following
Intigriti @intigriti
210K Followers 668 Following Bug bounty & VDP platform trusted by the world’s largest organisations! 🌍
Ben Sadeghipour @NahamSec
248K Followers 1K Following Cofounder @hackinghub_io | Advisor @CaidoIO. I hack companies and make content about it. #NahamCon organizer. ex @hacker0x01🇮🇷
JS0N Haddix @Jhaddix
176K Followers 7K Following CEO, CISO, Trainer, Hacker, and Speaker. Cybersecurity + Hacking + AI + Sec Leadership @arcanuminfosec
PentesterLab @PentesterLab
205K Followers 0 Following We make learning web hacking and security easier. Online systems, code review, videos & courses that can be used to understand, test and exploit bugs!
The XSS Rat - Proud X... @theXSSrat
166K Followers 1K Following Bug bounty profiles: https://t.co/3Uz5K130ah https://t.co/rzbqV5AmZ2 https://t.co/CDlzXdNvPB
Sam Curry @samwcyo
101K Followers 1K Following
Nicolas Krassas @Dinosn
157K Followers 768 Following Head of Threat & Vulnerability Mgmt @ Henkel AG & Co. KGaA https://t.co/NC1orlKZLB Posting content that I find interesting.
Katie Paxton-Fear @InsiderPhD
97K Followers 2K Following Dr, apparently. Security Adovcate @semgrep & Hacker. #BugBounty hunter & #infosec YouTuber. APIs & Interlinked OffSec, PhD in AI+Sec @hacknotcrime. she/her
Luke Stephens (hakluk... @hakluke
100K Followers 2K Following Hacker, marketer. I manage socials and marketing for cybersecurity orgs. Founder of @hacker_content and @haksecio
STÖK ✌️ @stokfredrik
138K Followers 1K Following Hi.. im that hacker / creative that your friends told you about.,
InfoSec Community @InfoSecComm
56K Followers 636 Following Largest InfoSec publication with 80,000+ followers and 3M+ monthly views.
zseano @zseano
81K Followers 712 Following #1 Amazon Hacker on a break from hacking. busy rebuilding bugbountyhunter and making bug bounties a better place for hackers
Lisa Forte @LisaForteUK
58K Followers 4K Following Cyber Security - Partner @redgoatcyber - Climber / Caver. she/her
Julien | MrTuxracer �... @MrTuxracer
39K Followers 443 Following Founder of @rcesecurity | #BugBounty | @Hacker0x01 MVH && H1-Elite | $1,5+ Mio in Bounties | Mobile Hacker | @[email protected]
Daniel Cuthbert @dcuthbert
33K 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
Yassine Aboukir 🐐 @Yassineaboukir
33K Followers 413 Following HackerOne Top 40, Elite, Pentest Lead, Ambassador, x2 MVH Title, $1 million bounties and ex- Hacker Advisory Board • Digital Nomad/Hybrid Athlete/Surfer
payloadartist @payloadartist
46K Followers 291 Following I discuss AI, Cybersecurity & Hacking • Helped secure organizations like Google • Opinions are my cat's • Part-time shitposter
Bug Bounty Reports Ex... @gregxsunday
54K Followers 613 Following Grzegorz Niedziela - a hacker who documents his hacking journey by creating and curating the best content about bug bounty and offensive security.
Gareth Heyes \u2028 @garethheyes
38K Followers 1K Following Web security researcher at PortSwigger. Author of JS for Hackers and Hackvertor. https://t.co/e0aNEbFb9D
Sarah Armstrong-Smith @SarahASmith75
5K Followers 2K Following Exec Security & Crisis Leader, Global Keynote Speaker, Best Selling Author, Lover of Doggos. Eternal Optimist! Aston Baby. All views my own 🇬🇧
OWASP_AISVS @OWASP_AISVS
55 Followers 22 Following Open standard for verifying AI system security. Practical, testable controls from data to deployment. Built with the OWASP community. #AISVS #AISecurity
Feross @feross
41K Followers 2K Following ⚡️ Founder + CEO @SocketSecurity (https://t.co/7g1opA7Tr8) • 🌲 Visiting lecturer @Stanford (https://t.co/yw9prxLiLe) • ❤️ Open source @WebTorrentApp + @StandardJS
Cybernews @Cybernews
72K Followers 401 Following Proving that cybersecurity is everyone's business. We research what others skip, expose what's buried, and know that the real story is never on the surface.
Sky News @SkyNews
8.9M Followers 112 Following The full story, first. Free, wherever you get your news @skynewsbreak for breaking news. Live on the Sky News app - download here: https://t.co/yDGELlf38H
Debbie O'Brien @debs_obrien
20K Followers 1K Following Helping you all learn AI, MCPs and more. Twin mum 👶👶, @GoogleDevExpert, @github ⭐ alumni https://t.co/gHfIDuhkCj
Kunal Kushwaha @kunalstwt
281K Followers 2K Following Teaching millions how to code and helping businesses scale.
Alex Olsen @appSecExp
2K Followers 182 Following Cyber Security | Penetration Testing | AppSec | Content Creator | Caffeine & Code.
Nathan House @GotoNathan
23K Followers 212 Following Leading Cyber Security & AI Expert, Educator & Mentor | Helping you fast-track your career through the AI revolution | CEO at StationX
API Security Communit... @apisecurity_
69 Followers 12 Following Let's talk about vulnerabilities, attacks, tools and most importantly securing your APIs!
Dheeraj Joshi @dheerajhere
797 Followers 2K Following 🦊 Staff Frontend Engineer. Interested in security, public speaking, fifa and coffee ☕️
Lab Thirty8 @lab_thirty8
13 Followers 147 Following Learn Data, Coding & Cyber Security - Pure code (not ‘drag & drop’) 🚀 Kate 🏴🇬🇧
Security BSides Pragu... @bsidesprg
597 Followers 226 Following Annual community-driven information security conference
CityJS Conferences @cityjsconf
7K Followers 1K Following A community conference. Lots of inspiring talks & advanced workshops more #Javascript, #React, #Nodejs, #TypeScript https://t.co/BvplUFz9tv
OpenAI Developers @OpenAIDevs
364K Followers 1 Following Official updates for developers building with Codex & the OpenAI Platform • Service status: https://t.co/kZwnwdYYEq
Narek @NarekHakobyan
196 Followers 885 Following Exploring the future of AI, LLMs & open source | Building, sharing & inspiring | Bridging ideas & innovation | DM for collabs! 🌐
zayne (zeyu) zhang @zeyu1337
3K Followers 2K Following 🇸🇬 | co-founder @hacktronai - your AI teammate for security | @projecteurope_ 🇪🇺 | cs @cambridge_uni 🇬🇧 | prev: @cure53berlin @tiktok_us, ogp | @Water_Paddler
Winn Schwartau @winnschwartau
2K Followers 223 Following Analogue Security Guy. Cybersecurity since 1983; Chief Visionary Officer & Founder, SAC Labs, a division of KnowBe4. Born as a Recording Engineer Producer.
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
The Linux Foundation @linuxfoundation
588K Followers 9K Following A nonprofit organization enabling mass innovation through open source. #linux #kubernetes #riscv #hyperledger #anuket #openssf #openjs #o3de and more!
Black Tulip Technolog... @TechnologyTulip
1K Followers 534 Following PhD student. Founder. Complexity Science & Systems Engineering, Philosophy of Software Architecture, Creator of residuality theory. https://t.co/mMqriWDnb3
Shashank | CredShield... @cyberboyIndia
11K Followers 2K Following Co-Founder @credshields | Building https://t.co/CQ9JKbhpmw Ex Security Analyst @Hacker0x01 Leading https://t.co/YnFOEI7b9p (Smart Contract Security Standards)
starr 🍑 ATL 🫶 @starrdlux
2K Followers 5K Following For me giving up is way harder than trying * CISSP * xR * hacker * pew pew gaming * *open source * memes * 🚫 cunts * views are mine @xrvillage @owasp
BSidesLisbon @Bsideslisbon
2K Followers 117 Following Portugal’s premier technical information security conference - 29/30 Outubro 2026, Auditorio FMD-UL, Lisbon, Portugal @[email protected]
LASCON @LASCONATX
2K Followers 1K Following The Lonestar Application Security Conference is security conference for builders and breakers from app devs to security engineers #devsecops #LASCONATX #OWASP
Tee Obi @teeobii
9K Followers 3K Following Award-Winning People Advocate | CPD Approved Trainer | Author | 15+ Years in HR × Web3 × Leadership | Helping UK Startups & SMEs Get Their HR Right From Day One
Security Compass @securitycompass
1K Followers 814 Following Security Compass, the Security by Design Company, is a leading provider of cybersecurity solutions.
Saidul @saidul_dev
54K Followers 2K Following Simplifying AI, tech tools, and no-code solutions | AI enthusiast | DM for Collaborations 📩
Petra Vukmirovic @PetraVuk1311
161 Followers 168 Following Director of Cyber Security / Ex- Senior Cyber Security Engineer / Volleyball Player / Ex - Emergency Medicine Doctor
Elastos Chimwanda, CI... @diamond_riou4z
509 Followers 7K Following A brilliant flash (moon shot) just before a total eclipse (crash). Blinding. Still remembered.
Dr. Anton Chuvakin @anton_chuvakin
42K Followers 9K Following Information security - #SIEM, #DFIR, #EDR formerly at Gartner! Now @GoogleCloud Office of the #CISO; host of @CloudSecPodcast https://t.co/VpKtfz8nXG
Luke Hinds @decodebytes
3K Followers 749 Following Creator of https://t.co/T8htHI7vHB , now building https://t.co/OBABqFvHE2 - the agent security platform.
Carly Richmond @CarlyLRichmond
745 Followers 1K Following Developer 🥑 Lead @ Elastic. UI and web developer. Loves cooking, tea, photography and gin! All views are my own. She/ Her.
Support @Support
6.4M Followers 3 Following Official @X support account. Find answers to common questions and get help on our Help Center: https://t.co/EO1OOUj5T5
XBOW @Xbow
12K Followers 13 Following Bringing AI to offensive security by autonomously finding and exploiting web vulnerabilities. https://t.co/D5Mco1tAKe
Chloé Messdaghi (@ch... @ChloeMessdaghi
18K Followers 364 Following Advisor on AI Governance & Cybersecurity | Strategic Counsel on Risk, Oversight & Institutional Readiness | Named a Power Player by Business Insider & SC Media
danjconn @danjconn
913 Followers 1K Following ❤️s Hax, Code, Music, Runs, Drinks. Chaos Monkey. London Marathon 🏃- 5:56:37 BCS / ACM / OWASP / OpenUK member. Personal Acc.
George Medve🏅💙 @nodinosaur
908 Followers 251 Following Pushing the envelope. Organiser @FlutterLDN. Head of Engineering | Mobile. Views are my own, etc.
Jorge @jorge_ctf
2K Followers 643 Following
Sipan V'artagnan ⚖�... @Hexen1337
6K Followers 2K Following Co-founder @hexens & @glider_xyz || https://t.co/qvK94LY8Fu 🦇🔊 Opinions are my own!
Praveen Kumar Purusho... @praveenscience
4K Followers 2K Following Director of Engineering, YouTuber, Blogger, MVP, FS Web Dev, Software & UX Specialist. Full Stack WebDev & Careers Mentor. Proud Owner of https://t.co/8oQpREQNtZ.
Marcus J. Carey @marcusjcarey
50K Followers 145 Following Hacker. I’m not here to convince you of anything. I’m too old to debate.You might like
