---
title: "Falkenkralle (@falkenkralle) | Hashnode"
description: "A CS Student aspiring to become a Red Teamer."
url: "https://hashnode.com/@falkenkralle"
---

@falkenkralle

# Falkenkralle

@falkenkralle · Joined July 2026

### [How To Hack (almost) Every Keypad](https://ttpsandtricks.hashnode.dev/smudge-attack?utm_source=hashnode&utm_medium=feed)

We explore the techniques of smudge attacks on Keypad and how to protect from them

9 min read · [ttpsandtricks.hashnode.dev](https://ttpsandtricks.hashnode.dev/smudge-attack?utm_source=hashnode&utm_medium=feed)

[Sep 27](https://hashnode.com/posts/smudge-attack/6ab978ac4bc521e67d103ed1)

### [Template Terror](https://ttpsandtricks.hashnode.dev/template-terror?utm_source=hashnode&utm_medium=feed)

How I found and exploited server-side template injection in a Flask/Jinja2 CTF app — reading /etc/passwd and getting RCE, mistakes and all.

9 min read · [ttpsandtricks.hashnode.dev](https://ttpsandtricks.hashnode.dev/template-terror?utm_source=hashnode&utm_medium=feed)

[Aug 2](https://hashnode.com/posts/template-terror/6a6f4e46e1f2446c9bfb5dc5)