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Stijn Vande Casteele Email & Phone Number
Owner
at
INSEC
1 work email found
@insec.be
2 phones found area 322
LinkedIn matched
✓ Verified May 2026
4 data sources
Profile completeness 100%
Who is Stijn Vande Casteele? Overview
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Quick answer
Stijn Vande Casteele is listed as Owner at INSEC, a company with 3 employees, based in Leuven, Flemish Region, Belgium. AeroLeads shows a work email signal at insec.be, phone signal with area code 322, and a matched LinkedIn profile for Stijn Vande Casteele.
Stijn Vande Casteele previously worked as Founder at Sweepatic and Investor at Syndicate One. Stijn Vande Casteele holds Msc, Information Security from Royal Holloway, University Of London.
Company email context
Email format at INSEC
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{first}@insec.be
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AeroLeads found 1 current-domain work email signal for Stijn Vande Casteele. Compare company email patterns before reaching out.
Profile bio
About Stijn Vande Casteele
Cyber Personality of the year 2021 finalist. Stijn obtained a Masters degree in Information Security from Royal Holloway, University of London.He’s an entrepreneur and cybersecurity leader with 20 years of hands-on experience. Having worked with many organizations in both private and public sectors, Stijn is skilled in combining his industry experience, business know-how, and market knowledge towards all organizational levels. Stijn holds the NATO / EU SECRET security clearance and is fluent in Dutch, French, and English.During his professional experiences, Stijn enjoys leading by coaching and steering several teams in successfully creating, selling, delivering, and operating enterprise-enabled cybersecurity solutions.
Listed skills include Network Security, Penetration Testing, Siem, Computer Security, and 33 others.
Current workplace
Stijn Vande Casteele's current company
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10 roles
Stijn Vande Casteele work experience
A career timeline built from the work history available for this profile.
Founder
CurrentIn June 2023, Outpost24 acquired Sweepatic.As a European leader in External Attack Surface Management, Sweepatic's mission is to strengthen its customers’ cybersecurity resilience by building and providing a state-of-the-art attack surface management platform. Sweepatic automatically and continuously discovers, classifies, analyzes and monitors the attack.
Oct 2016 - Present
Investor
Current
Jan 2024 - Present
Owner
CurrentStijn provides advisory services in cybersecurity and helps tech startups from idea to exit.
Dec 2012 - Present
Manager
Stijn is a Manager within the Enterprise Risk Services department of Deloitte in Brussels and a member of the worldwide Security & Privacy Services Group of Deloitte, which primarily delivers expertise in technical and organizational aspects of information security.Stijn is specialized in securing critical information infrastructures in public, military.
Sep 2010 - Dec 2012
Architect
Lead expert and senior security architect for the Managed Security Services within the Telindus Belgacom ICT organization.Program responsible for the SIEM multi-tier platforms based on ArcSight ESM and Logger technologies.Coaching a team of application engineers.
Nov 2005 - Sep 2010
Consultant
Axen
Secure engineering of a VoIP deployment for a Belgian Governmental Organization
Feb 2005 - Nov 2005
Technical Support Engineer
Team member of the Silicon Valley technical hub giving product support to Fortune 500 companies.
Oct 2004 - Jan 2005
Senior Security Analyst
Senior security analyst representing the OnlineGuardian UBIZEN team.24x7 real-time security monitoring.Wrote many monthly security reports defining a long-term security strategy for global organizations.Fine-tuning security infrastructures in close relation with enterprise customers.Responsible for knowledge transfer process between 3 Security Operating.
Jun 2002 - Sep 2004
Network Security Engineer
BS7799 penetration tests.Technical Fraud investigations.Wrote the initial information gathering part of the Scanit hacking course.Gave the course in DUBAI and an ISP abuse team.
Sep 2001 - Mar 2002
3 education records
Stijn Vande Casteele education
Msc, Information Security
Royal Holloway, University Of London
Bsc, Applied Computer Science
Ku Leuven
High School, Maths-Economics
Sint-Jan Berchmanscollege Brussel
FAQ
Frequently asked questions about Stijn Vande Casteele
Quick answers generated from the profile data available on this page.
What company does Stijn Vande Casteele work for?
Stijn Vande Casteele works for INSEC.
What is Stijn Vande Casteele's role at INSEC?
Stijn Vande Casteele is listed as Owner at INSEC.
What is Stijn Vande Casteele's email address?
AeroLeads has found 1 work email signal at @insec.be for Stijn Vande Casteele at INSEC.
What is Stijn Vande Casteele's phone number?
AeroLeads has found 2 phone signal(s) with area code 322 for Stijn Vande Casteele at INSEC.
Where is Stijn Vande Casteele based?
Stijn Vande Casteele is based in Leuven, Flemish Region, Belgium while working with INSEC.
What companies has Stijn Vande Casteele worked for?
Stijn Vande Casteele has worked for Insec, Sweepatic, Syndicate One, Deloitte Enterprise Risk Services, and Telindus Belgacom Ict.
Who are Stijn Vande Casteele's colleagues at INSEC?
Stijn Vande Casteele's colleagues at INSEC include Abdishakuur Issack Adam and Barbara Negka.
How can I contact Stijn Vande Casteele?
You can use AeroLeads to view verified contact signals for Stijn Vande Casteele at INSEC, including work email, phone, and LinkedIn data when available.
What schools did Stijn Vande Casteele attend?
Stijn Vande Casteele holds Msc, Information Security from Royal Holloway, University Of London.
What skills is Stijn Vande Casteele known for?
Stijn Vande Casteele is listed with skills including Network Security, Penetration Testing, Siem, Computer Security, Arcsight, Computer Forensics, Itil, and Firewalls.
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