Sivan Tehila @securitywitch
Mom 👩👧 Cybersecurity witch living in NYC 🗽 Founder & CEO @onyxiacyber🪄 🔮 Program Director of Cybersecurity @YU💫 SUP 🏄♀ Execution is power 🎯 securitywitch.com NYC Joined November 2018-
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I’m quoted in an article by @StevenPrentice of @cisoseries that’s full of great comments from security experts. The topic is “31 Myths and Realities Around Platformization Versus Best-of-Breed” cisoseries.com/31-myths-and-r…
This Week in IsraelTech Live! Featuring Israeli tech in New York! @yoeltisrael is joined by @securitywitch from @onyxiacyber, @cfederman from Silvertech Ventures, and Snir Ben Shimol from ZEST Security. x.com/i/broadcasts/1…
Join s TOMORROW for This Week in IsraelTech LIVE! Get ready for an exclusive conversation with top industry leaders as we dive into the latest trends, opportunities, and innovations in the Israeli tech ecosystem. 🗓 Date: Wednesday, February 5th 🕘 Time: 4:00pm IDT / 9:00am EST 📍 Where: Live on the IsraelTech 𝕏 page 👉 RSVP now to stay updated, and don’t forget to bring your questions for the live Q&A! 🎙 Featured Guests: 🔹 Charlie Federman, Partner at Silvertech Ventures Charlie has a passion for supporting early-stage companies, particularly those that strengthen the U.S.-Israel tech partnership. With over 40 companies in his portfolio, he has an eye for innovation and a track record of helping startups scale. As an early investor and board member at Payoneer, he understands what it takes to build global success stories. 🔹 Sivan Tehila (@securitywitch), Founder & CEO at Onyxia Cyber (@onyxiacyber) Sivan is a cybersecurity leader with 15+ years of experience, from serving as an Intelligence Officer in the IDF to leading cybersecurity strategy at top organizations. She’s deeply involved in emerging industry trends and is passionate about helping companies strengthen their security posture. She also advocates for women in cybersecurity through initiatives like Cyber Ladies NYC. 🔹 Snir Ben Shimol, Co-Founder at ZEST Security Snir is an Israeli intelligence alum with over 15 years of experience in security research and product innovation. He focuses on emerging trends in AI-driven security solutions, working to make cybersecurity more efficient for DevOps and security teams. His work in AI chips and automation is shaping the next generation of cybersecurity technology. Both Sivan and Snir operate R&D in Israel while building their go-to-market strategies in the U.S. 🎤 Host: 🔹 @YoelTIsrael, Founder of IsraelTech 📃 What’s on the agenda? Strengthening the U.S.-Israel tech partnership Emerging industry trends and challenges The impact of AI chips on the future of technology The evolving landscape of cybersecurity Whether you're a founder, investor, or tech enthusiast, this is a discussion you won’t want to miss! 👉 RSVP now and join the conversation live!
Thank you so much @TheCyberExpress! @YUKatzSchool @OnyxiaCyber
🌟Join us in honoring Sivan Tehila, Founder & CEO at Onyxia! Named one of The Cyber Express 40 Under 40 Women Cyber Leaders, Sivan is a distinguished cybersecurity expert and entrepreneur with over 15 years of industry experience. Currently serving as the CEO of Onyxia, a
CISOs Are Facing Challenges In Proactive Threat Defense And Compliance Management hubs.li/Q02rc0jW0 Written by @securitywitch of @onyxiacyber
In @Forbes, @securitywitch discusses challenges CISOs face in proactive threat defense and compliance management. Read the full story in Forbes: bit.ly/3vvIzAn #WeAreKatz #KatzSchool #Cybersecurity #CriticalInfrastructures #CyberDefense #WomenInCyber @ForbesCouncils
Bring them home now.
I had the honor of attending a beautiful Selichot evening at the official residence of President @Isaac_Herzog in Jerusalem. In the spirit of the Jewish High Holiday season, I wish you a prosperous New Jewish Year ahead and G'mar Chatima Tova! 🙌 #holidayseason #Jerusalem
So honored and proud! Welcome, Chris! 🚀
Big News! Rockstar CISO Chris Roberts is joining us as a strategic advisor. Roberts brings unparalleled expertise to further strengthen Onyxia's advisory capabilities. Read more here on @DarkReading: darkreading.com/prnewswire2.as…
Big News! Rockstar CISO Chris Roberts is joining us as a strategic advisor. Roberts brings unparalleled expertise to further strengthen Onyxia's advisory capabilities. Read more here on @DarkReading: darkreading.com/prnewswire2.as…
Our CEO @securitywitch was a guest on @AspironSearch's CyberBytes: the podcast with @Cybercoopss. Onyxia helps CISOs gain a data-driven approach to security strategy for improved cyber risk and performance management. youtube.com/watch?v=ezeURJ…
We are thrilled to announce the addition of @rinkisethi, CISO of BILL.com, as a strategic advisor. As we continue to drive innovation in the cybersecurity industry, Rinki's expertise and insights are invaluable. bit.ly/RsAdvTw
My new article for @Forbes @ForbesTechCncl 👇 @OnyxiaCyber
Cybersecurity As A Strategic Investment hubs.li/Q01_fcjg0 Written by @securitywitch of @OnyxiaCyber
Our CEO @securitywitch alongside cyber experts from @gartner, @Akamai, @ExpelSecurity, @splunk, @SkyhawkCloudSec, @kaspersky, @ProtectAICorp, @beyondidentity, @CycodeHQ, @opus_security commented on trends from #blackhat2023 for @techopedia by @tim_keary bit.ly/3shk9Z4
After months of hard work by the entire Onyxia team and invaluable feedback from our early adopters, I am proud to share the official launch of Onyxia’s Cybersecurity Performance Management platform. more Link to my personal note on the Onyxia blog: bit.ly/3rWYmG4
The official launch of our AI-powered Cybersecurity Performance Management (#CPM) platform is here! We empower security leaders with an essential way to measure, manage, and convey the business value of their security programs. Read at @DarkReading: bit.ly/47knVB5
gabsmashh @gabsmashh
110K Followers 3K Following security strategist | 2L JD Candidate | NYU alum | UMGC adjunct professor | DVC-YR USCG AUX
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Lisa Forte @LisaForteUK
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Phillip Wylie @PhillipWylie
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Nicole Beckwith @NicoleBeckwith
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Dr. Anton Chuvakin @anton_chuvakin
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Lisa Ventura MBE FCII... @cybergeekgirluk
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Lucas von Hartmann�... @ichbinlucasv
866 Followers 6K Following fn main() { Cybersec::Blue_Team().Rust🦀().Tech🤖().Science🧪().XMR🔶️(); ✝️ Libertarian 🟡⚫ }
Uncommon Message ⚡�... @UCqruq
30 Followers 450 Following Even in fragments, you remain whole and strong enough to endure, yet soft enough to live in peace and truth. These are rare thoughts for rare minds.
Kieren Day @KierenDayStudio
5 Followers 35 Following New to X | Founder of Cordoval - The All-In-One Workspace Replacing All Your Subscriptions, It's Also Free And Uses Device Storage, We DON'T Store Data!
Joe Patti @joepatti
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InfoSight Inc @InfoSight
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Nikhil Sharma | Cyber... @MavN1ck
8 Followers 364 Following I Help Businesses Secure Digital Infrastructure & be Compliant | CRTE | CRTP | CEH | Security Researcher & Consultant #cybersecurity #infosec #ethicalhacking
Ariana Reynolds @ArianaaRey
296 Followers 4K Following This is Ariana Reynolds. I’m a software engineer and experienced marketer, passionate about blending tech and creativity to build impactful digital solution.
Christy Bartoletti @ChristyBar85958
64 Followers 3K Following
David @pswrd1234
15 Followers 130 Following When capable, pretend to be incapable; when active, inactive; when near, make them believe that you are far away; when far away; that you are near #DFIR #OSINT
Ynirsi @Ynirsi9262908
6 Followers 213 Following
Rafael Cabrera @RafaelCabr62331
1 Followers 25 Following
Youssef Chalat @YoussefChalat
252 Followers 7K Following Founder & CEO @RocketMeUp Telegram: https://t.co/QgPQmLYcyf Mail: [email protected]
JC Gaillard @Corix_JC
11K Followers 10K Following Founder & CEO @CorixPartners @Transform_Sec @TCyberCast | Top #Cybersecurity Elite Expert, ThoughtLeader & #GRC Ambassador @Thinkers360 | Author, Advisor, Coach
Thomas Webb, ConpTIA ... @R4ka11
191 Followers 1K Following Working, always working... The world doesn't change itself for the better.
Sarah Idris Madaki @Bella_Snowie
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Steve YP @steveyp263
36 Followers 144 Following
kalpesh vhaval @Kalpeshvhaval__
1 Followers 46 Following
TammyOscar @5KqMCzb057NX7g4
75 Followers 7K Following
Mailfence @Mailfence
3K Followers 671 Following Secure and private Email, Calendar, Documents, Workspaces. Sign up here: https://t.co/CfaM6fQpHE #security #privacy https://t.co/bO4k3OH9Ix
Coco @Coco92505519927
2 Followers 84 Following Exploring the worlds of cybersecurity, recruitment, and marketing. Passionate about innovation, connecting people, and creating impactful strategies.
ZB @zlb5021
4 Followers 983 Following
William @hitholy
25 Followers 859 Following
Dirrar @DirrarDdEnEwS
71 Followers 7K Following
Shonersm @Shonersmr7B
39 Followers 4K Following
Ruederez @Ruederezy6b
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flowers @6tEFQ90xsI2Jjw
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PagFitzGerald @oG5l4n4abzzyk7h
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Shelley Potter @shellpott87
0 Followers 6 Following
Emily @ShixoreshYXu8s
22 Followers 1K Following
Anton Ivanchenko @ivanchenko_a
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ELIJAH LATICBE @ELIJAHLATICBE
121 Followers 246 Following Web Developer | Graphics Designer | Cyber Security Student. Former Host & Co-Founder;@Mali_Hub_ . #innovation & #technology
BerkeleyNyi @Berkeley147
343 Followers 7K Following
IsraTransfer @IsraTransfer
159 Followers 767 Following Specialists in money transfer to Israel, since 2008. Offering best exchange rates, better than the banks. #Israel #Economy https://t.co/26Ru5F0gDX
EthelRebecca @WpdhOrEk0h48r
69 Followers 6K Following
TinaBridges @0Hc1gPUKKp6870o
49 Followers 5K Following
Bala Gudivada @GudivadaBala
75 Followers 839 Following Just a learner, trying to earn some knowledge...
SwiftOnSecurity @SwiftOnSecurity
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John Hammond @_JohnHammond
327K Followers 3K Following Cybersecurity Researcher @HuntressLabs Just Hacking Training @JustHackingHQ w/ @ethicalhacker https://t.co/UtsNJiyQtS && https://t.co/narO3sz7y6
gabsmashh @gabsmashh
110K Followers 3K Following security strategist | 2L JD Candidate | NYU alum | UMGC adjunct professor | DVC-YR USCG AUX
Jack Rhysider 🏴... @JackRhysider
172K Followers 4K Following Creator of @DarknetDiaries and @LOWpodcast. Tell me a good hacker story. 💻🔦⤵️🐰🕳️ Discord: https://t.co/qxanMuIy7u
vx-underground @vxunderground
449K Followers 381 Following The largest collection of malware source code, samples, and papers on the internet. Password: infected
InfoSecSherpa 🏔️ @InfoSecSherpa
52K Followers 4K Following Your Guide Up a Mountain of Information! #Librarian 📚 ➡️ #InfoSec 🤖 #Philly 💚🏡 Nil satis nisi optimum ⚽ #Toffees
briankrebs @briankrebs
333K Followers 2K Following Independent investigative journalist. Author of 'Spam Nation,' a NYT bestseller. Former Washington Post reporter. Mastodon: https://t.co/fTKNavlMwp
4n6lady @4n6lady
63K Followers 658 Following #DFIR & #BlueTeam | IR & Threat Detection | #OSINT enthusiast | waiting for HL3 | AWS CIRT - my views are my own
mRr3b00t @UK_Daniel_Card
126K Followers 8K Following Chief Artificial Intelligence Cyber Security Scientist Superintelligence-grade security former Helpdesk AI infection status: clean Task Force 29
💻 Sherrod @sherrod_im
39K Followers 7K Following Difficult mystery girl connected to the divine forces of the universe.
Israel Defense Forces @IDF
3.3M Followers 34 Following Official IDF X account. We post real-time information and updates from the field.
Lisa Forte @LisaForteUK
58K Followers 4K Following Cyber Security - Partner @redgoatcyber - Climber / Caver / Diver. she/her
Katie Paxton-Fear @InsiderPhD
100K Followers 2K Following Dr, apparently. Security Adovcate @semgrep & Hacker. #BugBounty hunter & #infosec YouTuber. APIs & Interlinked OffSec, PhD in AI+Sec @hacknotcrime. she/her
TryHackMe @tryhackme
311K Followers 85 Following An online platform that makes it easy to break into and upskill in cyber security, all through your browser.
meg west @cybersecmeg
156K Followers 926 Following Tweets about #dogs & travel & fitness & cybersecurity, oh my! Opinions are my own. 📧: [email protected]
Flipper Devices @flipper_net
109K Followers 151 Following A portable multi-tool device in a toy-like body for pentesters and hardware geeks. Buy worldwide here ➡️ https://t.co/n09EKVnqri
Sam Curry @samwcyo
102K Followers 1K Following
ARCHIVED: Jen Easterl... @CISAJen
61K Followers 47 Following Archived: Director, CISA—America’s Cyber Defense Agency. Combat Veteran. Proud Mom. Rubik’s Cuber. Aspiring Electric 🎸. ❤️/RT ≠ endorsement
Phillip Wylie @PhillipWylie
52K Followers 20K Following Chief Security Evangelist & Sr. Consultant & @suzulabs | Offensive Security Expert | Phillip Wylie Show Podcast Host @thehackermaker | @pentesterblue coauthor
Ran Bar-Zik @barzik
63K Followers 117 Following Principal software architect at @PaloAltoNtwks. Tech journalist at @TheMarker. Lecturer at Ono Academic College, Haifa University, Author, Opinions are my own.
IsraelTech @IsraelTech
4K Followers 122 Following Unfiltered Israeli tech, startups, & VC news in your X feed. Hosted by @YoelTIsrael & produced by @RevitalMyer
Ryan Neu @ryanRneu
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George Kurtz @George_Kurtz
235K Followers 462 Following President & CEO CrowdStrike, Former CEO of Foundstone, Former CTO of McAfee, and author of Hacking Exposed
Shivon Zilis @shivon
618K Followers 2K Following Artificial intelligence, biological intelligence, and whatever exists in between and beyond. Made in Canada.
James Lindsay, anti-C... @ConceptualJames
568K Followers 597 Following Chief Anti-totalitarianism Officer @NewDiscourses. 🇺🇸🇺🇸🇺🇸
Lex Fridman @lexfridman
5.5M Followers 694 Following Host of Lex Fridman Podcast. Interested in robots and humans.
Nico Acosta @acossta
10K Followers 850 Following building - https://t.co/0Ct8EBoKAa - https://t.co/3vZjp67mdE - https://t.co/I0kEbEpSX3
Logan Holland @holland_pgh
3K Followers 3K Following Tampa Sports Fan living in Pittsburgh | All views are *mostly* my own
Jim Donahue @otherjimdonahue
827 Followers 1K Following No longer posting on X. See same @ profile on Bluesky for personal (non-work) posts.
Neuralink @neuralink
1.8M Followers 1 Following Creating a general-purpose, high-bandwidth interface to the brain
University of Oxford @UniofOxford
1.1M Followers 1K Following Welcome to our official account 👋 Follow for the latest news, research and updates about life at Oxford.
Rhodes Trust @rhodes_trust
18K Followers 3K Following Home of the #RhodesScholarship, which enables outstanding people from around the world to study at the University of Oxford.
דפנה ליאל @DaphnaLiel
236K Followers 650 Following כתבת ופרשנית פוליטית, חדשות 12. עדכונים שוטפים גם בטלגרם ובוווטסאפ. For English updates @daphnaliel1
Josh Breiner @JoshBreiner
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aviad glickman @aviadglickman
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אטילה שומפל... @attilus
213K Followers 727 Following Political strategist, tactical communication expert. A Bnai Brith Prize winner. PODCASTS:פייקלנד | הבריקדה | פוקוס על אמריקה
בני גנץ - Benny... @gantzbe
367K Followers 8 Following נשוי לרויטל ואב ל-4 ילדים. שר הביטחון ה-21. הרמטכ״ל ה-20. יו״ר כחול לבן .Israel's 21st Minister of Defense. 20th IDF Chief of Staff. "Blue & White" Chairman
דודי אמסלם �... @dudiamsalem
184K Followers 247 Following שר במשרד המשפטים | שר לשיתוף פעולה אזורי | השר המקשר בין הממשלה לכנסת
כאן חדשות @kann_news
377K Followers 339 Following עמוד החדשות מבית כאן, תאגיד השידור הישראלי | Kan - Israel Public Broadcasting Corporation | להורדת האפליקציה: https://t.co/v8TIKZ89zE
עמיחי שיקלי... @AmichaiChikli
233K Followers 5K Following Israel Minister of Diaspora and Combating Antisemitism. Married to Hadas and father to Yehonatan, Noga and Uri.
יצחק הרצוג I... @Isaac_Herzog
229K Followers 45 Following נשיא מדינת ישראל. נשוי למיכל ואב לשלושה. President of the State of Israel. Married to Michal and father of three.
The Cyber Express By ... @TheCyberExpress
3K Followers 388 Following The Cyber Express is a publication that provides latest news and analysis about the information security industry. #cybersecurity #cyberexpress #news
Hack The Box @hackthebox_eu
251K Followers 227 Following Cyber Mastery: Community Inspired. Enterprise Trusted.
The XSS Rat - Proud X... @theXSSrat
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JS0N Haddix @Jhaddix
180K Followers 7K Following CEO, CISO, Trainer, Hacker, and Speaker. Cybersecurity + Hacking + AI + Sec Leadership @arcanuminfosec
Joseph Thacker @rez0__
74K Followers 1K Following christian. father. hacker. founder. advisor. podcast: https://t.co/1aFavJN2h8 blog: https://t.co/JBPT1CJWJH products: 💻 https://t.co/iPdpsEAc1h 🤖 https://t.co/EVhQl8HTlp 📚 https://t.co/MMmhw0cnaz
🇷🇴 cristi @CristiVlad25
56K Followers 703 Following
LiveOverflow 🔴 hex... @LiveOverflow
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Ben Sadeghipour @NahamSec
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TCM Security @TCMSecurity
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Intigriti @intigriti
216K Followers 670 Following Bug bounty & VDP platform trusted by the world’s largest organisations! 🌍
AppSec Village™ @AppSec_Village
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Help Net Security @helpnetsecurity
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Ido Ivry @idoivri
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Chris Fralic @chrisfralic
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Bojan Tunguz @tunguz
306K Followers 8K Following Founder and CEO @tabul_ai. Creator of @trainxgb. ML ex Nvidia. Data Scientist. Physicist. Catholic. Husband. Father. Stanford Alum. Memelord. e/xgb. AMDG.
RazK @raz_kaplan
3K Followers 5K Following Making sense of the AI market is my job. When an insight is more useful in public, I share it
Jenny Fielding @jefielding
44K Followers 4K Following Managing Partner, @EverywhereVC investing in pre-seed founders building the future of money, health and work 🚀
Alex Friedman 🤠 @heyalexfriedman
64K Followers 1K Following Writing things about stuff. former @techstars & exited founder. Humble, very stable genius
SilverTechVentures @SilverTechV
293 Followers 216 Following Technology Hub and Venture Fund affiliated with Silverstein Properties. It's about people, access and alignment
Jill Malandrino @JillMalandrino
20K Followers 3K Following Global Markets Reporter @Nasdaq & Host @TradeTalks #CapitalMarkets #DigitalAssets #Web3 @RutgersU @RutgersCommInfo Grad @UMass Undergrad #PIC @DonaldKey
TradeTalks @TradeTalks
18K Followers 1K Following Where the voices of the market meet. @JillMalandrino hosts conversations with leaders on markets, technology, financial literacy, digital assets, and more.
Maria Volovik @mvolovik
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Maye Musk @mayemusk
1.5M Followers 229 Following Doctor of Dietetics 👩🎓 Supermodel 😉💃 [email protected] Author: A Woman Makes A Plan 📖 +Sept 2026 TIMELESS 📖 Pre-order: https://t.co/W9KRc2KNbf




















