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Johnny Cho Email & Phone Number

25-year-experienced IT/Security expert. Looking for CISO or Director of Security
Location: Seoul, Seoul, United States 18 work roles 2 schools
1 work email found @woowahan.com LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 86%

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Role
25-year-experienced IT/Security expert. Looking for CISO or Director of Security
Location
Seoul, Seoul, United States

Who is Johnny Cho? Overview

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Quick answer

Johnny Cho is listed as 25-year-experienced IT/Security expert. Looking for CISO or Director of Security based in Seoul, Seoul, United States. AeroLeads shows a work email signal at woowahan.com and a matched LinkedIn profile for Johnny Cho.

Johnny Cho previously worked as CISO at Lemontree Inc. and CISO at Aton 아톤. Johnny Cho holds Ph.D. Candidate, Operating System, Security from Hanyang University.

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Email format at woowahan.com

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*@woowahan.com
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AeroLeads found 1 current-domain work email signal for Johnny Cho. Compare company email patterns before reaching out.

Profile bio

About Johnny Cho

As the CISO for a Fintech Service, a leading online platform for food delivery and lifestyle services, I oversee the security strategy, policies, and operations of the company's IT infrastructure and data. I have more than 20 years of experience in the IT field, spanning software development, system administration, network security, and information security.My mission is to protect the company's assets, customers, and partners from cyber threats and risks, while enabling the business to grow and innovate in a fast-paced and competitive environment. I have a strong background in cloud security, IT hacking, internet censorship, and IT project management, as well as certifications in CISSP and CISA. I am passionate about learning new technologies, solving complex problems, and collaborating with diverse teams.

Listed skills include Security, Network Security, Tcp/Ip, Computer Security, and 30 others.

18 roles

Johnny Cho work experience

A career timeline built from the work history available for this profile.

Ciso

Seongnam-si, Gyeonggi-do, KR

- Establishing Information Security Strategies fitting for an early start-up - Conducting Technical/Managemental security countermeasures for firfin, a child-based fintech service- Acquired an electronic financial business license based on AWS Cloud

Mar 2022 - Dec 2023

Ciso

Seoul, South Korea, KR

- Established enterprise Information Security Strategies- Conducted Technical/management security countermeasures for PASS authentication Service- Consulted technology review of companies to invest in

Oct 2020 - Mar 2022

Director

- Derived security requirements for IoT Solutions based on AWS IoT Services

Sep 2019 - Jun 2020

Security Team Manager

서울특별시, 강남구, KR

- Made technical & managerial information security strategies - Built a security architecture on AWS infrastructure

Nov 2018 - Aug 2019

Information Technology Manager

Seoul, Songpa-gu, KR

As a Leader of Information Security Team- Planned a Static/Dynamic Security Analysis Process (DevSecOps) in the DevOps software development Process- Gave security/privacy lectures for all employees- Established lifecycle of privacy information in the business work process - Taken annual ISMS auditsAs a Team Manager of Service Reliability Engineering (SRE).

Aug 2016 - Oct 2018

Senior Research Fellow

Tek & Law, Llp

- Leading IT projects and IT advisories- Researching cyber security for Attorneys

Sep 2014 - Jun 2017

It Security

Freelancer

I'm doing the projects- Taking team management for a security consulting firm- Handling Software Quality Assurance for a start-up in USA- Giving security lecturesI've performed IT and security projects, and gave security lectures in various courses- Analyzed IT risk of a privacy information system at a credit card company- Performed Web security assessment.

May 2011 - Jun 2017

Vp Engineering

San Francisco, California, US

- Managed a launching project for new mobile security product - Built software development and operating processes

Jun 2015 - Apr 2016

Security Architecture Team Manager

Seoul, Seoul, KR

- Advocated secure coding- Performed security assessment (Pentest) and managed vulnerabilities - Established security policies for IT Infrastructures: Network Security, DB Security, Server Security

Jul 2013 - Aug 2014

It Security Senior Manager

Seoul, KR

- Led adoption of security processes: Secure SDLC, Vulnerability Response - Made a company-wide security incident response handling process

Oct 2011 - Apr 2012

Senior Solutions Engineer

Cisco Korea

Pre-sales Engineer for Cisco Security Products (ASA firewall)

May 2011 - Sep 2011

Sr. Security Researcher/Developer

Seoul, KR

Senior Manager, Product Strategy/Planning Division - Built technical strategies for next products- Planned oversea businessSenior Researcher, Product Development Division - Dissected network protocols of DBMS such as Oracle TNS, MS-SQL TDS- Consulted developers’ network-related issues

Aug 2009 - Apr 2011

It Security Professional

Seongnam-si, Gyeonggi-do, KR

Security Policy Senior Manager, Law & Contract Division at NHN Business Platform- Established Enterprise security strategies Security Strategy Senior Manager, Security Strategy Division- Established technical security strategies- Built up global security strategies- Gave security lectures for developersIT Security Senior Manager, IT Security Division.

Mar 2007 - Jul 2009

Security Administrator

Sunnyvale, CA, US

- Performed security assessment of web services- Reviewed firewall requests and built firewall rule sets- Consulted networks and systems issues to developers- A technical liaison between local developers and security teams in head quarter

Jan 2005 - Feb 2007

System Administrator

Sunnyvale, CA, US

- Administrated FreeBSD/Linux systems (>5,000)- Checked system configuration/health and integrity of internal CMDB - Audited system health checks

Feb 2004 - Feb 2007

Search Engineer

Sunnyvale, CA, US

- Responsible for web dictionary/encyclopedia search- Deployed several vertical search infrastructures for other services

Jan 2002 - Jan 2004

Product Development Manager

Seongnam-si, Gyeonggi-do, KR

- Responsible for a desktop security product

May 2000 - Dec 2001

System Engineer

Lycos Korea

- Responsible for a free homepage service, Tripod- Acted as a technical liaison between product managers of Tripod US and Korea

Dec 1999 - Apr 2000
2 education records

Johnny Cho education

Ph.D. Candidate, Operating System, Security

Hanyang University

Ms, Computer Science

Chung-Ang University
FAQ

Frequently asked questions about Johnny Cho

Quick answers generated from the profile data available on this page.

What is Johnny Cho's role at their current company?

Johnny Cho is listed as 25-year-experienced IT/Security expert. Looking for CISO or Director of Security.

What is Johnny Cho's email address?

AeroLeads has found 1 work email signal at @woowahan.com for Johnny Cho.

Where is Johnny Cho based?

Johnny Cho is based in Seoul, Seoul, United States.

What companies has Johnny Cho worked for?

Johnny Cho has worked for Lemontree Inc., Aton 아톤, Ictk, Hyperconnect, and (주)우아한형제들 (Woowa Bros.).

How can I contact Johnny Cho?

You can use AeroLeads to view verified contact signals for Johnny Cho, including work email, phone, and LinkedIn data when available.

What schools did Johnny Cho attend?

Johnny Cho holds Ph.D. Candidate, Operating System, Security from Hanyang University.

What skills is Johnny Cho known for?

Johnny Cho is listed with skills including Security, Network Security, Tcp/Ip, Computer Security, Perl, Freebsd, Linux, and Apache.

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