Johnny Cho Email
CEO and CISO
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Johnny Cho Location
- Seoul, South Korea
Johnny Cho Work
- CEO and CISO @ InvaluableTech (May 2025 - Present)
- CISO @ (March 2022 - December 2023)
- CISO @ ATON 아톤 (October 2020 - March 2022)
- Director @ (September 2019 - June 2020)
- Security Team Manager @ (November 2018 - August 2019)
- Information Technology Manager @ (August 2016 - October 2018)
- Senior Research Fellow @ TEK & LAW, LLP (September 2014 - June 2017)
- IT Security @ Freelancer (May 2011 - June 2017)
- VP Engineering @ (June 2015 - April 2016)
- Security Architecture Team Manager @ (July 2013 - August 2014)
- IT Security Senior Manager @ (October 2011 - April 2012)
- Senior Solutions Engineer @ Cisco Korea (May 2011 - September 2011)
- Sr. Security Researcher and Developer @ (August 2009 - April 2011)
- IT Security Professional @ (March 2007 - July 2009)
- Security Administrator @ (January 2005 - February 2007)
- System Administrator @ (February 2004 - February 2007)
- Search Engineer @ (January 2002 - January 2004)
- Product Development Manager @ (May 2000 - December 2001)
- System Engineer @ Lycos Korea (December 1999 - April 2000)
Johnny Cho Education
- Hanyang University
PH.D. Candidate (Operating System, Security)
2008-2017 - Chung-Ang University
MS (Computer Science)
1998-1999
Johnny Cho Skills
- Perl
- Linux
- Python
- FreeBSD
- Apache
- Security
- Cloud Computing
- Distributed Systems
- MySQL
- Unix
- Shell Scripting
- Bash
- DNS
- Java
- PHP
- C
- Network Security
- Open Source
- OWASP
- Project Management
- Conference Organization
- Management
- TCP/IP
- Information Security
- Nagios
- Cisco IOS
- Penetration Testing
- Computer Security
- Web Application Security
- Linux System Administration
- Ubuntu
- Nessus
- Information Technology
- Technology
- Cho
- Internet Protocol Suite Tcp/Ip
- Load Balancing
- Services
- Internet Protocol Suite
Johnny Cho Summary
- Johnny Cho, based in Seoul, South Korea, is currently a CEO and CISO at InvaluableTech. Johnny Cho brings experience from previous roles at Lemontree Inc., ATON 아톤, ICTK and Hyperconnect. Johnny Cho holds a 2008 - 2017 PH.D. Candidate in Operating System, Security @ Hanyang University. With a robust skill set that includes Perl, Linux, Python, FreeBSD, Apache and more. Johnny Cho has 2 emails on RocketReach.
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