John S. Byun in

John S. Byun

Critic · DISC type C
VP, Chief Information Security Officer at SEPHORA
📍 Pleasanton, California, United States

Professional overview including current role context, leadership scope, domain focus, and career trajectory to help you understand background relevance before outreach.

Key behavioral and communication insights including interaction style, decision-making tendencies, and motivation drivers to tailor messaging and personalize conversations.

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Experience
26 Years
Current Role
VP, Chief Information Security Officer
Job Level
Leadership
Location
Pleasanton, California, United States
Personality Overview

How John shows up

Information Seeker
Objective Thinker
Precise

Unless the value is proven by data, they are unlikely to value fancy features. They like to do things independently and don’t look for support from others. They choose to analyze logically and value facts to emotions.

Priorities

Topics John cares about

Strategic Priorities
Topic insights and context to help personalize outreach and discovery conversations.
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Career

Work history

8-2024
VP, Chief Information Security Officer
SEPHORA
5-2023 - 8-2024
Senior Director, Cybersecurity
SEPHORA
5-2022 - 4-2023
Director, Information Security
SEPHORA
3-2021 - 4-2022
Senior Architect, Information Security
SEPHORA
3-2019 - 2-2021
Architect, Information Security
SEPHORA
In the press

Media appearances

Media appearances and press coverage highlighting public visibility and thought leadership.
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Education
1989 - 1996
B.A.
University of California, Berkeley
Social presence
in
Behavioral profile

DISC profile (public)

C

Calculativeness (C)

Calculativeness (C) reflects the degree to which a person is likely to be cautious, systematic and analytical. Those scoring high tend to emphasise quality and accuracy.

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