Profiling Elixir with Perf

In this post we will show you how to profile your Elixir application with perf and visualise its stack trace with Flamegraphs. We’ll create a basic Phoenix web server with two endpoints which we will call in order to profile and analyse its performance.

An introduction to the WebAssembly specification

It’s all semantics. A short overview of WebAssembly’s language specification.

Incredibly simple 'Hello World' program from C to WebAssembly

When dipping my toes into WebAssembly the first thing that struck me was how complicated the supposedly “simple” getting-started examples were. The C “Starting from scratch” example on the official WebAssembly website requires Emscripten, which produces a .js file with over 2000 lines and an equally large HTML page as well. Searching for other tutorials online didn’t lead anywhere either.

Showing the Swedish Royal Family how to hack

Watch my cameo in KTH Innovation's promo video

Busybee has graduated!

Read my interview with KTH about working and studying in tech

Last week I was privileged enough to be interviewed by Håkan Soold at KTH, the university where I completed my Bachelor’s degree. We discussed how the program at KTH prepared me for my role at Klarna (which incidentally, I was offered a while before I graduated - although they don’t mention that in this article). You can read the article here.

An overview of hacking LTE

This post serves as a starting point for individuals looking into hacking cellular network technology, in particular Long-Term Evolution (LTE). It will provide an overview of the currently known vulnerabilities and methods of breaking cellular security.

Today I published my Bachelor's thesis on hacking

Today I published my Bachelor’s thesis report about hacking an electric scooter. We go into detail on the efforts we made to hack a popular Xiaomi scooter, and proposed ways to fix its security flaws. It’s my first official academic report, and you can read it here from KTH’s publication portal.

I featured in a Swedish news interview on hacking