Stephan John

Stephan John Email and Phone Number

Cyber Security Expert | OSCP | CARTP | CEH @ EY
london, greater london, united kingdom
Stephan John's Location
Chennai, Tamil Nadu, India, India
About Stephan John

Stephan John is a highly skilled Techie with strong problem-solving skills at Ernst & Young LLP has gained expertise in various areas of cybersecurity, including:• Web application vulnerability assessment and penetration testing (WAPT/VAPT): identified and exploited vulnerabilities in web applications from various sectors like e-commerce platforms, banking websites, and other web applications.• Mobile application vulnerability assessment and penetration testing (MAPT): assessed the security of mobile applications on both iOS and Android platforms, identified vulnerabilities in mobile banking and e-commerce applications, and provided recommendations for remediation.• Network penetration testing: performed both internal and external network penetration testing for clients in various industries.• Asset discovery and OSINT projects: conducted asset discovery and open-source intelligence (OSINT) projects to identify publicly available sensitive information about the client employee and provide recommendations for securing the client's systems.• Security architecture review: conducted security architecture reviews for clients in the banking sector, evaluated their application architecture, and provided recommendations for improving their security posture.• Wireless penetration testing: identifying vulnerabilities in wireless networks using various tools like Aircrack-ng and Wireshark to perform wireless penetration testing and providing recommendations for securing the wireless networks.Please feel free to connect with me via 🌐LinkedIn

Stephan John's Current Company Details
EY
Cyber Security Expert | OSCP | CARTP | CEH
london, greater london, united kingdom
Website:
ey.com
Employees:
296502
Stephan John Work Experience Details
  • Ey
    Senior Consultant
    Ey Oct 2024 - Present
    India
  • Ey
    Consultant
    Ey Oct 2022 - Oct 2024
    Chennai, Tamil Nadu, India
  • Ey
    Associate Consultant
    Ey Feb 2022 - Oct 2024
    Chennai, Tamil Nadu, India
  • Auriseg
    Associate Security Engineer
    Auriseg Oct 2020 - Jan 2022
  • Defsecone Consulting And Technologies Pvt Ltd
    Project Intern
    Defsecone Consulting And Technologies Pvt Ltd Feb 2020 - Oct 2020

Stephan John Education Details

  • Jeppiaar Institute Of Technology
    Jeppiaar Institute Of Technology
    Information Technology

Frequently Asked Questions about Stephan John

What company does Stephan John work for?

Stephan John works for Ey

What is Stephan John's role at the current company?

Stephan John's current role is Cyber Security Expert | OSCP | CARTP | CEH.

What schools did Stephan John attend?

Stephan John attended Jeppiaar Institute Of Technology.

Who are Stephan John's colleagues?

Stephan John's colleagues are Adam Withers, Pinghong Zhao, Clement Ravindran, Mufees Armar, Ea, Nitzan Efroni, Ida Strøm Bakken, Kriza Tercero.

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