Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Author

 Yoav Leitersdorf and Ofer Schreiber
Twitter
LinkedIn
RSS
E-Mail

Profile of Yoav Leitersdorf and Ofer Schreiber

Managing Partner & Partner, YL Ventures
Member Since: 11/5/2014
Author
News & Commentary Posts: 2
Comments: 1

Yoav Leitersdorf and Ofer Schreiber are Managing Partner and Partner, respectively, at YL Ventures, which invests early in cybersecurity, cloud computing, big data, and software-as-a-service software companies, and accelerates their evolution via strategic advice and Silicon Valley-based operational execution.

Yoav Andrew Leitersdorf has been a successful tech entrepreneur and investor for the past two decades. YL Ventures, which he founded, invests early in core-technology software companies in and around the Internet, and accelerates their evolution via value-added involvement and Silicon Valley-based business development. He currently serves on the boards of six YL Ventures portfolio companies: Karamba Security, Twistlock, Hexadite, Seculert, Upstream Commerce, and FireLayers. He served on the boards of BlazeMeter until it was exited to CA Technologies, ClickTale until it was exited to Amadeus Capital, and AcceloWeb until it was exited to Limelight Networks.

Ofer Schreiber has broad responsibilities across deal sourcing, investment due diligence, and portfolio company value-add, and currently serves as a board observer of Karamba Security, Twistlock, FireLayers and Hexadite. Ofer joined YL Ventures from IVC Research Center where he spent nearly three years researching and analyzing the Israeli technology and venture capital industry. While at IVC, he specialized in the telecommunications, Internet, and mobile sectors and conducted research related to investment firms.

Articles by Yoav Leitersdorf and Ofer Schreiber
News
Inside the Ransomware Campaigns Targeting Exchange Servers
Kelly Sheridan, Staff Editor, Dark Reading,  4/2/2021
Commentary
Beyond MITRE ATT&CK: The Case for a New Cyber Kill Chain
Rik Turner, Principal Analyst, Infrastructure Solutions, Omdia,  3/30/2021
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
2021 Top Enterprise IT Trends
We've identified the key trends that are poised to impact the IT landscape in 2021. Find out why they're important and how they will affect you today!
Flash Poll
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2021-30477
PUBLISHED: 2021-04-15
An issue was discovered in Zulip Server before 3.4. A bug in the implementation of replies to messages sent by outgoing webhooks to private streams meant that an outgoing webhook bot could be used to send messages to private streams that the user was not intended to be able to send messages to.
CVE-2021-30478
PUBLISHED: 2021-04-15
An issue was discovered in Zulip Server before 3.4. A bug in the implementation of the can_forge_sender permission (previously is_api_super_user) resulted in users with this permission being able to send messages appearing as if sent by a system bot, including to other organizations hosted by the sa...
CVE-2021-30479
PUBLISHED: 2021-04-15
An issue was discovered in Zulip Server before 3.4. A bug in the implementation of the all_public_streams API feature resulted in guest users being able to receive message traffic to public streams that should have been only accessible to members of the organization.
CVE-2021-30487
PUBLISHED: 2021-04-15
In the topic moving API in Zulip Server 3.x before 3.4, organization administrators were able to move messages to streams in other organizations hosted by the same Zulip installation.
CVE-2020-36288
PUBLISHED: 2021-04-15
The issue navigation and search view in Jira Server and Data Center before version 8.5.12, from version 8.6.0 before version 8.13.4, and from version 8.14.0 before version 8.15.1 allows remote attackers to inject arbitrary HTML or JavaScript via a DOM Cross-Site Scripting (XSS) vulnerability caused ...