John Doe

John Doe

Cybersecurity Engineer

Athens, Greece 12 years Europe/Athens
1Sessions
5.00Rating
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Platform Profiles

Global ranking

#6

Team ranking

#2

Points

2479

Systems owned

197

User owned

197

Respect

56

Experience

2 companies

Alpen Security

6 years 4 months

Lead Penetration tester

Mar 2020 - Present

Warfare Informatics

6 years 1 month

Senior Penetration tester

Dec 2016 - Feb 2020

Junior Penetration Tester

Jan 2014 - Nov 2016

Education

1 degrees

Bachelor on Tech

General Studies

Tech Uni

2025 – Present

Certifications

10 certs

ISC2 Standards & Practice NIS-2 Directive Content Curator

Nov 2024

ISC2

Verified

COSO Internal Control Certificate

Feb 2024

The Institute of Internal Auditors

Verified

Certified Az Red Team Professional

Nov 2022

Pentester Academy

Verified

OffSec Experienced Penetration Tester (OSEP)

Jan 2022

Offsec

Verified

Certified Enterprise Security Specialist (PACES)

Jun 2021

Pentester Academy

Verified

OffSec Certified Expert (OSCE)

Nov 2019

Offsec

Verified

OffSec Certified Professional (OSCP)

Nov 2018

Offsec

Verified

Certified Cloud Security Professional (CCSP)

ISC2

Verified

Certified Information Systems Security Professional (CISSP)

ISC2

Verified

OneTrust Certified Privacy Professional

OneTrust

Verified

Skills

18 skills
Python
Research
C
Java
PHP
Red Teaming
Malware Analysis
Cyber Risk Management
Exploit Development
Incident Response
Penetration Testing
Programming
Laravel
CSS
Vulnerability Assessment
Ethical Hacking
Network Security
Siem Tools

Highlights

8 items

Achievements

2

CVE-2024-45191 – Remote Code Execution via Deserialization in MegaInvoice ERP

May 2024

MegaInvoice Security Team

A critical deserialization vulnerability was identified in the MegaInvoice ERP API (/api/worker/payload) that allowed un...

CVE-2023-87202 – Privilege Escalation via Misconfigured sudoers in CoreSec OS

Jan 2023

CoreSec Project

A misconfiguration in the default sudoers file of CoreSec OS version 2.3.1 allowed low-privileged users to execute /usr/...

Conferences

6
Jun 2024

Security BSides Athens 2024

Athens, Greece

Conference: Security BSides Athens 2024 (June 2024)

Jun 2024

Security BSides Athens 2024

Athens, Greece

Conference: Security BSides Athens 2024 (June 2024)

Jun 2024

Security BSides Athens 2024

Athens, Greece

Conference: Security BSides Athens 2024 (June 2024)

Nov 2023

BSidesChicago 2023

Chicago, Illinois, United States

Conference: BSidesChicago 2023 (November 2023)

Nov 2023

BSidesChicago 2023

Chicago, Illinois, United States

Conference: BSidesChicago 2023 (November 2023)

Nov 2023

BSidesChicago 2023

Chicago, Illinois, United States

Conference: BSidesChicago 2023 (November 2023)

Languages

3 languages
EnglishElementary
German Elementary
GreekNative Bilingual