Hyo Choi
Information Security Analyst @TouchBistro
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WORK HISTORY
Information Security Analyst @TouchBistro
Monitor security alerts and events to spot potential threats.Dive deep into security data and trends to identify vulnerabilities comprehensively.Configure, maintain email security gateway, and investigate suspicious emails.Respond when security incidents occur, investigating and mitigating breaches promptly.Maintain and enhance incident response plans to minimize the impact of security incidents.Conduct vulnerability assessments to fortify our systems, applications, and networks (R7, S1, and AWS)Engage in threat hunting across environments, contributing to our content management and threat intelligence efforts.Collaborate closely with our team and various departments to identify improvements and maximize operational efficiencies.Help the team prepare for ISO 27001 audit. Integrate SOAR with applications and create workflows to automate repetitive tasks. Work with IT team to implement application version control system via Jamf. Configure, maintain, document AWS WAF webacl rules and adjust as needed to balance between business operation and security.Monitor and conduct investigation when AWS WAF issues arise by using CloudWatch Log Insights and Datadog. Monitor AWS GuardDuty, SecurityHub and discuss the mitigation plans with devops team (suppress any false positives).Check we have appropriate phishing campaigns set-up for the company (KnowBe4).Get involved with all security 3rd party POC/POVs vendors, test the product, and share feedbacks. Conduct Okta access reviews every quarter for both the contractors and employees.Investigate all externally reported vulnerabilities, confirm validity, and action on them as needed. Tools: SentinelOne, Rapid7 InsightVM and InsightConnect (SOAR), Mimecast (Email Gateway), AWS, Jamf, Datadog.
EDUCATION
University of Guelph
Bachelor's degree, Biomedical Science
Mohawk College
Network engineering and security analyst
ABOUT HYO CHOI
Pursued veterinary science for 10 years and turned around to IT security to learn more…
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