---
title: "Sudeepa Shiranthaka (@0xdr3) | Hashnode"
description: "Web Security | Penetration Testing  | Blogger | Writer | Cybersecurity. Read the latest articles by Sudeepa Shiranthaka on Hashnode."
url: "https://hashnode.com/@0xdr3"
---

@0xdr3

# Sudeepa Shiranthaka

@0xdr3 · Joined May 2022

Web Security | Penetration Testing | Blogger | Writer | Cybersecurity

### [5 Essential Tips to Secure Your Data](https://0xdr3.hashnode.dev/5-essential-tips-to-secure-your-data?utm_source=hashnode&utm_medium=feed)

5 Essential Tips to Secure Your Data

2 min read · [0xdr3.hashnode.dev](https://0xdr3.hashnode.dev/5-essential-tips-to-secure-your-data?utm_source=hashnode&utm_medium=feed)

[Jul 7, 2023](https://hashnode.com/posts/5-essential-tips-to-secure-your-data/64a79ea67cb2849af66043df)

### [What is OS Command Injection Attack](https://0xdr3.hashnode.dev/what-is-os-command-injection-attack?utm_source=hashnode&utm_medium=feed)

portswigger os command injection exploit burp suite beginner medium writing hacking writeups SEO exploitation web hacking web security

4 min read · [0xdr3.hashnode.dev](https://0xdr3.hashnode.dev/what-is-os-command-injection-attack?utm_source=hashnode&utm_medium=feed)

[Jul 1, 2023](https://hashnode.com/posts/what-is-os-command-injection-attack/649f9fc88970af15e5167e27)

### [Kioptrix: Level 1 \[Vulnhub\] Walkthrough](https://0xdr3.hashnode.dev/kioptrix-level-1-vulnhub-walkthrough?utm_source=hashnode&utm_medium=feed)

Kioptrix is a boot to root challenge which you can download from Vulnhub. You can download and install it on your virtual machine. Figure 1 -Kioptrix login Description This Kioptrix VM Image are easy challenges. The object of the game is to acquire...

3 min read · [0xdr3.hashnode.dev](https://0xdr3.hashnode.dev/kioptrix-level-1-vulnhub-walkthrough?utm_source=hashnode&utm_medium=feed)

[May 18, 2023](https://hashnode.com/posts/kioptrix-level-1-vulnhub-walkthrough/64658c7d2f40b200ebc07742)