John Brennan

Partner at YL Ventures

John Brennan, Partner at YL Ventures, specializes in seed-stage cybersecurity investing. Leveraging a deep focus on cybersecurity and his diverse background in venture capital, he takes a hands-on approach to supporting YL Ventures' portfolio companies, especially those in the earlier stages of growth.

Latest from John Brennan

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Cyber Risk
An Inside Look at How CISOs Prioritize Budgets & Evaluate VendorsAn Inside Look at How CISOs Prioritize Budgets & Evaluate Vendors
byJohn Brennan
Sep 4, 2019
5 Min Read

Editor's Choice

CrowdStrike logo on a phone screen
Threat Intelligence
CrowdStrike 'Updates' Deliver Malware & More as Attacks SnowballCrowdStrike 'Updates' Deliver Malware & More as Attacks Snowball
byNate Nelson, Contributing Writer
Jul 25, 2024
3 Min Read
Hands of a person in a suit jacket holding a screen pointing to an image of a padlock and the words "insider threat"
Vulnerabilities & Threats
Security Firm Accidentally Hires North Korean Hacker, Did Not KnowBe4Security Firm Accidentally Hires North Korean Hacker, Did Not KnowBe4
byElizabeth Montalbano, Contributing Writer
Jul 25, 2024
4 Min Read
A laptop showing the Microsoft WIndows 11 logo
Endpoint Security
Goodbye? Attackers Can Bypass 'Windows Hello' Strong AuthenticationGoodbye? Attackers Can Bypass 'Windows Hello' Strong Authentication
byJeffrey Schwartz, Contributing Writer
Jul 23, 2024
4 Min Read
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