Sivan Tehila

Mom 👩‍👧 Cybersecurity witch living in NYC 🗽 Founder & CEO @onyxiacyber🪄
🔮 Program Director of Cybersecurity @YU💫 SUP 🏄‍♀ Execution is power 🎯

[Sivan Tehila @securitywitch]

#moretocome
https://t.co/iNIo1PjgXE

[Sivan Tehila @securitywitch]

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” https://t.co/xOyTmzFKsu

[IsraelTech @IsraelTech]

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. https://t.co/kq7pZyyROU

[IsraelTech @IsraelTech]

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!

[Sivan Tehila @securitywitch]

Thank you so much @TheCyberExpress!
@YUKatzSchool @OnyxiaCyber

[The Cyber Express By Cyble @TheCyberExpress]

🌟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 Cybersecurity Strategy and Performance platform, she also holds the position of Program Director and cybersecurity professor for the MS in Cybersecurity program at Katz School of Science and Health, Yeshiva University.

Tehila’s career began with a decade-long tenure in intelligence and cybersecurity roles within the Israel Defense Forces (IDF), where she served as an Intelligence Officer, CISO of the Research and Analysis Division, and Head of the Information Security Department of the Intelligence Corps, earning an honorable discharge as a Captain. 🎖️ In these roles, she spearheaded the development and management of comprehensive Cybersecurity strategies, encompassing policies, compliance, risk assessment, training, and operational and technical projects. Transitioning to the private sector, Tehila joined RAFAEL, an Israeli defense technology company, as an Information Security Officer and profiler. Subsequently, she served as a cybersecurity consultant for Israel Railways, where she established the Cyber Security Operation Center (CSOC) monitoring systems for both Information Technology (IT) and Operational Technology (OT).

Tehila’s journey continued as she assumed the role of Director of Solution Architecture at Perimeter 81, contributing her expertise to the advancement of cybersecurity solutions. Beyond her professional endeavors, Tehila is deeply committed to fostering diversity and inclusion in the Cybersecurity field. She founded Cyber Ladies NYC and developed a unique cybersecurity program for Manhattan High School for girls.

Her dedication to this cause has been recognized by SC Media, which honored her as a Woman to Watch and one of the 25 influential women in IT Security for 2020. An esteemed speaker and educator, Tehila conducts technical workshops, speaks at conferences worldwide, and contributes to leading information and cybersecurity publications. Through her multifaceted roles and tireless advocacy, Tehila continues to make significant contributions to the cybersecurity industry while championing the advancement of women in the field.

Don't miss the chance to gain insights from Sivan's remarkable journey! Download the latest issue of our magazine now. https://t.co/tRqiDkXA3W

#Cybersecurity #Leadership #Education #recognition #womenincyber #GlobalExperience #SkillBuilding #womenintech #inspireinclusion

[Forbes Technology Council @ForbesTechCncl]

CISOs Are Facing Challenges In Proactive Threat Defense And Compliance Management https://t.co/qr47F1obhU Written by @securitywitch of @onyxiacyber

[Katz School of Science and Health @YUKatzSchool]

In @Forbes, @securitywitch discusses challenges CISOs face in proactive threat defense and compliance management.

Read the full story in Forbes: https://t.co/NrGi1x3wkp

#WeAreKatz #KatzSchool #Cybersecurity #CriticalInfrastructures #CyberDefense #WomenInCyber @ForbesCouncils

[The Cyber Express By Cyble @TheCyberExpress]

@christinacaci @CamilleSG46 @cybersecmeg @dariaski @EngineerNoureen @likethecoins @LisaForteUK @rana__khalil @zinet_kemal @swagitda_ @ShamaneTan @securitywitch @RoyaGordon

[Rabbi Dr. Ari Berman @AriBermanYU]

Bring them home now.

[Sivan Tehila @securitywitch]

@AriBermanYU Am Israel Chai! 🇮🇱

[Rabbi Dr. Ari Berman @AriBermanYU]

See you in Washington.

[Sivan Tehila @securitywitch]

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

[Sivan Tehila @securitywitch]

So honored and proud! Welcome, Chris! 🚀

[Onyxia @OnyxiaCyber]

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: https://t.co/q6QZfeZpuK

[Onyxia @OnyxiaCyber]

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: https://t.co/q6QZfeZpuK

[Onyxia @OnyxiaCyber]

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.

https://t.co/sfcen64DKD

[Onyxia @OnyxiaCyber]

We are thrilled to announce the addition of @rinkisethi, CISO of https://t.co/MC0pFhKDxz, as a strategic advisor. As we continue to drive innovation in the cybersecurity industry, Rinki's expertise and insights are invaluable. https://t.co/MIDmELNpJF

[Sivan Tehila @securitywitch]

My new article for @Forbes @ForbesTechCncl 👇

@OnyxiaCyber

[Forbes Technology Council @ForbesTechCncl]

Cybersecurity As A Strategic Investment https://t.co/utyCqXoCEK Written by @securitywitch of @onyxiacyber

[Onyxia @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

https://t.co/d27wBxAdDL

[Sivan Tehila @securitywitch]

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: https://t.co/spxCJpYWX1

[Sivan Tehila @securitywitch]

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: https://t.co/z9dnWR1FdJ