Ryan Sim: Email & Phone Number

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C4 Expert (Cyber) at The Digital and Intelligence Service (DIS)|Singapore

Position:

C4 Expert (Cyber) at The Digital and Intelligence Service (DIS)

Location:

Singapore

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Last updated: 2026-10-15

Updated: 2026-10-15

Found email addresses for Ryan Sim:

Business emails:

t**********e@csx.com,

t****e@csx.com

Personal emails:

t**********e@onebox.com,

c**********1@yahoo.com

Found phone for Ryan Sim:

+65-***-***-3977

A different Ryan Sim?

Ryan is proficient in Chinese Mandarin, English, and French.

Ryan holds Japanese (Advanced), Top 10 Students for Software Engineering, and OffSec Certified Professional (OSCP) certifications and has been awarded Cyber Security Agency Prize AY25/26 and Cyber Security Agency Prize AY24/25

Education

Bachelor of Computing in Information Security at National University of Singapore

International Honors Program at Stanford University

International Baccalaureate at St Joseph's Institution (SJI)

Frequently Asked Questions

What is Ryan Sim's email address?

SignalHire found verified email addresses for Ryan Sim, both business and personal. Their business email is t**********e@csx.com, and personal emails include t**********e@onebox.com, and c**********1@yahoo.com.

What is Ryan Sim's phone number?

SignalHire found a verified phone number for Ryan Sim: +65-***-***-3977.

How do I contact Ryan Sim at The Digital and Intelligence Service (DIS)?

You can reach Ryan Sim through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

Is Ryan Sim's contact information up to date?

Yes. Ryan Sim's SignalHire profile was last updated on 15 October 2026, reflecting their current position as C4 Expert (Cyber) at The Digital and Intelligence Service (DIS).

Ryan Sim Namesakes

Name

Company

Position

Ryan Sim

Singapore Economic Development Board (EDB)

Senior Associate, Hub Strategy

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Ryan

Monash Health

IMG Affairs Coordinator

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Ryan Sim

NUS Students' Business Club (Bizad Club)

Head of Logistics

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