Meet our team of white-hat hackers and security experts

Chris Weltzien | CEO

Chris has been building successful security businesses for the past decade. As president and chief operating officer of Exploit Prevention Labs, he led the growth of the company from inception through its sale to AVG Technologies. Prior to that, Chris was Vice President of Consumer Business at Zone Labs, Inc. playing a key role in growing consumer revenue and expanding Zone Labs install base to more than 30 million worldwide users prior to Zone Labs sale to Check Point Technologies in 2005. Chris has also held key business roles with security vendors AVG and Avira.

Nitzan Miron | Co-Founder & President

Nitzan is an experienced tech entrepreneur and security expert. Nitzan's greatest joy is seeing the evolution from idea to design to working product. After doing so for six years as a security architect in Israel's "Matzov" data security unit, where he was responsible for designing the next-generation military data security devices, Nitzan moved on to the web security space, where he built and secured web applications and frameworks, first as a consultant and later as an entrepreneur.

Yaron Tal | Co-Founder & CTO

Yaron has been breathing technology since the day he was born. He started programming at the age of 12, and since then has proven again and again that the impossible is, in fact, possible. At the age of 17 he started his way of entrepreneurship with a consulting business that helped find and fix security vulnerabilities in enterprise systems. Yaron was recruited to "Matzov," Israel's data security unit, where he lead development of military data security systems, as well as design of security infrastructures and algorithms. Prior to 6Scan, Yaron held a key part in taking two startups from idea to working product, in the WiFi and cloud computing spaces. Follow him on his personal blog Startup Internals.

Stoney Brooks | Director, Business Development & Sales

Stoney started his career with NASA's Aviation Safety Reporting System, where he quickly found that his passion for technology had overpowered his passion for actually flying the airplanes. He traded in his flight log to become a Systems Administrator, helping people with the complexities of technology. After several years of wearing several technical hats, Stoney discovered a new passion and decided to use his technical aptitude to help build and create business. Prior to joining 6Scan, Stoney served as Director of Business Development for Commtouch, a leader in Internet Security solutions. His business acumen helped lead Commtouch's growth and build strategic alliances with market leaders such as Netgear, Rackspace, GFI, HP, RIM, and Sendmail. Stoney also introduced new Commtouch products/OEM technologies that helped Commtouch reach new and emerging markets such as SaaS, IaaS, Hosted Web and Email services, and managed security services.

Pavel Komissar | Backend & Security Engineer

Pavel is an expert on everything from Assembly up to PHP and Python. After spending four years in the military working on embedded systems involving GPS devices and other fun stuff, he spent 4 more years writing and optimizing software for enterprise voice/video-over-IP MCUs at Polycom. Pavel has extensive experience with Internet technologies, system design and real time applications. At 6Scan, he is responsible for leading the development and technical integration of our backend.

Yossi Jacob | Backend & Frontend Engineer

Yossi was first exposed to the world of computer programming and security at the age of 12. He was the creator of the PHP Protect project, which protected (and still protects) many websites in Israel and abroad. He has a B.Sc. in computer science from the Technion in Haifa; he also served as a research engineer in the university’s computational linguistics lab, where he was responsible for morphologic analysis systems for the Hebrew language.

Yoav Andrew Leitersdorf | Board Member

Yoav has been a successful entrepreneur, investor, and consultant in the technology and new media fields for the past two decades. He is the founder and managing partner of YL Ventures, a global venture capital firm that invests in high-technology start-up companies and, within a short time, brings them to market. In addition to 6Scan, Yoav serves on the board of directors of ClickTale (customer experience analytics), Upstream Commerce (automated competitive pricing analytics) and BlazeMeter (self-service load testing cloud) and is the lead investor of Seculert (security threat intelligence). Yoav served on the board of AcceloWeb (browser experience optimization) until it was acquired by Limelight Networks. Yoav was the CEO and cofounder of Movota (mobile gaming) acquired by Bertelsmann, the CTO and cofounder of ExchangePath (online payments) acquired by CMGI, and the CEO and cofounder of PcEnterntainer Magazine. Yoav was also an associate at DFJ Gotham Ventures, studied at IMD, and holds an MBA from Columbia University.

John Sell | Advisor

John is an entrepreneur with over 30 years of operating and investing experience in computing. As a Venture Partner with Crossroads Ventures, John is primarily focused on infrastructure and technology that supports Hyper-growth including cloud computing, virtualization, data movement and security. Prior to joining Crossroads John was a founder and the CEO of Network Computing Services (NCSI) until its sale in 2000 to netASPx. NCSI was at the forefront of cloud computing, providing high performance computing services to the financial services, petrochemical, automotive, and aerospace industries as well as to academia and the US Government. NCSI was responsible for breakthrough offerings in on-demand interactive computing, parallel processing, large-scale data storage and advanced networking technologies. Prior to serving as the CEO of NCSI, John founded and served as President of the Minnesota Supercomputer Center, which became a wholly-owned subsidiary of Cray Research in 1994. John also served as a Center Director/Principal Investigator for the National Science Foundation Advanced Scientific Computing Program and was one of the individuals responsible for the Department of Defense Army High Performance Research Center. Earlier in his career, John was an Associate Director of the University of Minnesota Computer Center and a Development Officer for the University of Minnesota.

Geva Perry | Advisor

Geva Perry has more than 15 years of experience as an executive in the enterprise software industry. His blog, Thinking Out Cloud, on cloud computing and software-as-a-service strategy and marketing is widely read and he is a frequent speaker on the topic. Geva has been named as one of the Top 25 Most Influential People in the Hosting Industry, Top 50 Cloud Computing Bloggers and one of the 12 Top Thinkers in Cloud Computing. Geva has been a strategy and marketing advisor to a number of companies; he also serves on the board of directors of Upstream Commerce and BlazeMeter. Geva received a Bachelor's degree from Hebrew University in Jerusalem. He holds an MS from the Columbia Graduate School of Journalism and an MBA from Columbia Business School. Follow him on Twitter: @gevaperry.

Douglas Hanna | Advisor

Douglas Hanna is the CEO of A Small Orange, a provider of high quality shared, VPS, reseller, and dedicated web hosting. As CEO, Douglas leads the company’s management team and is directly responsible for the company’s finance, business development, marketing, and M&A activities. He is also responsible for HostNine and SEO Web Hosting, two companies that A Small Orange acquired in November 2010. Before joining A Small Orange in March 2010, Douglas was the Customer Service Manager at HostGator.com LLC, a world leading web hosting company with more than 225,000 customers. At HostGator, he was responsible for customer service and customer service operations, as well as corporate communications and public relations. Douglas also founded and writes for Service Untitled, a leading blog on customer service and the customer service experience and has done customer service consulting for companies such as Dell.

Yaniv Feldman | Advisor

Yaniv is a the Editor-in-chief of Newsgeek, the largest startup blog in Israel and a managing partner at Venturegeeks, the first Startup Accelerator Program in Israel. Yaniv has over 10 years of experience in IT Security and has previously worked at Microsoft as Regional Director for Security in charge of Techical Pre-Sale for the entire security product line. Yaniv is also a Microsoft MVP for Forefront Security products and holds a BA Degree in Business Management.

Our investors

YL Ventures

YL Ventures is a global venture capital firm that was founded to address the changing venture capital financing landscape. The firm invests in high technology start-up companies and, within a short timeframe, brings them to market by introducing and marketing them to global strategic players. YL Ventures combines its capital with deep engineering and market expertise, thereby facilitating a highly efficient model for technological innovation.


Venturegeeks is a the first Startup Accelerator Program in Israel. Venturegeeks gives Israeli early-stage startups a pre-seed kick-start while transforming them from great ideas to successful start-ups. Venturegeeks' solution integrates pre-seed funding, mentorship and high-tech entrepreneurship community support to provide early-stage ventures with a professionally guided boost within a period of 3 months.