Name: HKPUG #92 - The Hacker and Refactor
Start: 2025-11-29T16:00:00+08:00
End: 2025-11-29T18:00:00+08:00
Location: CityU G4702

Date: 29 November 2025 (Sat)
Time: 16:00 - 18:00 \*HKT
Coordinator: Henry Wong & Alex Au

**Please bring along your laptop to hack along!**

**Please fill in the form for admission**:
https://forms.gle/i39TDhT8h6z98jzf6

**Topics:**

**Refactoring with Polymorphism (Jason Wang)**

* Recognize *code smells* that signal it’s time to refactor
* Learn how polymorphism replaces conditionals cleanly
* Understand how to apply simple OOP patterns in everyday Python
* Appreciate how clean code improves collaboration and scaling

**Introduction to Ethical Hacking in Python (Leon Lam, Cantonese)**

* Reconnaissance & Information Gathering
* Web Exploitation

**Capacity:** 80

**Venue Info:**
City University of Hong Kong, Kowloon Tong

**Rundown:**

* 16:00 - 16:20 Registration & Networking
* 16:20 - 16:30 Upcoming Events Promotion
* 16:30 - 17:00 Refactoring with Polymorphism (Jason Wang, 5 mins Q&A)
* 17:00 - 17:10 Break & Networking
* 17:10 - 17:50 Introduction to Ethical Hacking in Python (**Mini** **Workshop** by Leon Lam, 5 mins Q&A, **Cantonese**)
* 17:45 - 18:00 Closing & Networking
* 18:00 - Networking Session after Meetup (Outside City University)

**Speakers Bio:**

**Jason Wang**
Jason is a software developer working in a trading firm in Hong Kong. He is typically involved in applications to automate day-to-day business operations. He enjoys technical discussions and challenges, whether it be designing the system, or writing readable and maintainable code.

Linkedin: https://www.linkedin.com/in/jason-wang-a831b5218/

**Leon Lam**
Leon is a self-taught ethical hacker and a second-year Information Security student at HKU SPACE. He is **a member of the CTF team ICEDTEA** and has been **an active GNU/Linux user** for over five years, maintaining his own **custom distro, UmmItOS**, alongside BlackArch and NixOS. Passionate about cybersecurity and Python, he enjoys exploring how systems can be attacked and secured through real-world CTFs and penetration tests.

Leon is particularly interested in offensive security techniques and sharing how ethical hackers think, learn, and build safer systems through hands-on experimentation.

Personal Website: https://l.ummit.dev/

**Audience pre-requisite:**

* Recommended having beginners-level knowledge about Python (0-1 year of experience)
* Basic networking knowledge
* Basic understanding of how websites/servers work
* Familiarity with shell usage skills/Linux uage

**How to join?**

* Fill in the form for admission: https://forms.gle/i39TDhT8h6z98jzf6
* Click "Attend" in this page

Alex Au

Henry, Wai Yin Wong

Hong Kong Python User Group

Technology

Open Source

Python

Software Development

Django

Programming Languages

Python Web Development

Open Source Python

Data Science using Python

Data Analytics

Machine Learning

Data Science

HKPUG #92 - The Hacker and Refactor

Cybersecurity

CityU G4702

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HKPUG #92 - The Hacker and Refactor

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