An introduction to the ARP protocol and an explanation on what exactly ARP Spoofing is and how it can be dangerous.

What is ARP Spoofing?

If you are making a web application with users management, bitwise flags will be really useful for that same application. I've never used bitwise flags in my past small web application, and I definitely regret not having used them before... Not only it's super convenient, but you also don't need tons of rows in your database to store various account information.

Bitwise flags are amazing, and you should use them

Follow along on how I reverse engineered a stripped Go binary. It wasn't an easy task as it has been stripped and is not a normal C binary, but worth learning.

Reversing a Go stripped binary

The Space Heroes 2022 CTF was an online CTF from April 1st (4pm UTC) to April 3rd (9pm UTC) 2022. It was hosted by FITSEC and it even was their first time organizing such an event!

Space Heroes 2022 CTF write-up

The Insomni'hack 2022 CTF is a CTF hosted during the Insomni'hack conference in Geneva, Switzerland. You had to register yourself so that you can attend to the on-site CTF. There was a total of 31 challenges. As a beginner in CTFs I decided to mostly take the easy challenges. The CTF was from March 25 (6pm UTC) to March 26 (4am UTC) 2022.

Insomni'hack 2022 CTF write-up

So for those of you who know me for quite a long time, you know I've been cheating in Minecraft for quite some time. (Yes, I cheated in a block game.) But I didn't just installed a Minecraft cheating client, went on a server and killed everyone, I made my own cheating client. Now this might sound even more "cringe", but it taught me a lot, especially a lot about Java.

How I protected my Minecraft cheating client

Who has not been attracted by prices of a product on a website? How cheap this product is compared to another website, or the opposite; how expensive the price is compared to other websites. I have been a "victim" of price manipulation a few months ago and decided to share it so that other people don't get manipulated like me; however at the end I won :)

How cookies can manipulate new customers

Generating unique IDs with the Snowflake algorithm

I will explain what Go is and some of its core concepts so that you can get started with this programming language and have some references on how to start doing so!

Krypton

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