About Calvin Lai (fkclai)

I am working in the IT industry for over 25 years. For the first 10-years worked on web applications and middle-tier development, in recent years, I focus on application security and management work.

This blog serves as an open personal journal where I document all of my experiences with platforms like HTB & VulnHub, CVE Exploit Proof-of-Concepts, exploitation guides, Offensive Security cheat sheets, penetration testing insights, application security coding practices, my perspective on establishing an Information Security Center, and study materials related to Information Security.

Most of the techniques recorded here are coming from the Internet by other security researchers. I just reference it and try to consolidate, rethink and reuse it. This is my way of learning, doing, reading, following, and reviewing. Finally, take notes for future study.

My Contribution

• Social Community https://github.com/MOCSCTF/CTF-Write-UP

• Defensive Security http://www.hackyclub.com

This blog contains the following topics:

• Information Security Centre

• Application Architecture

• Application Security

• Exploit/CVE PoC

• Hacking Report (HTB)

• Penetration Testing Work List

• Red Team (Windows)

• Exploitation Guide

• VulnHub Writeup

• CTF Writeup & Tips

• Useful Command & Tools

• Offensive Security Lab & Exam Tips

• ISO 27001

Disclaimer

All material on this website is intended solely for training and academic use. Please be aware that the notes provided here may contain errors. It is highly recommended that you verify the information by consulting the internet and conducting your research.

There are multiple methods to achieve the same goals, so feel free to explore and be creative in your approach.

Finally, the content shared on this website does not represent the structure, functions, program coding, or tools of any specific organization. My aim is to provide general knowledge and insights to help you understand the importance and complexities of cybersecurity.

Do not expect the note completed without error.

Do check the Internet and try it yourself.

Do remember there are many ways to do the same things.

Be creative in your work.

Some people live in dream world; some people live in reality; some make one into the other.

Shoot for the moon, Even if you miss, you'll land among the stars.

心態 決定境界 態度 決定高度