Jonas Lejon is an amazing mind in the Swedish security world. A

great entrepreneur, hacker, and security-expert!

We had the pleasure of talking with him in this episode of Security Headlines.

he wanted to specialize in security so he packed his bag and headed over

to the capital city to work more in-dept with security. He wanted to

go deeper and deeper, so spent his extra hours learning the assembly programming

and getting into the low-level brain of the computer system. He managed

to land a job working for the Swedish version of NSA.

Jonas now runs his own company called "Triop" and has a lot of fun side

projects that we dig into.

In this episode we also cover:

Micro blogging

building search engines

bloggz dot se

Getting over 20K users within a few weeks

Twitter in the early days

Building Sweden's biggest micro-blogging platform

testing in production

WordPress Security

bug bounties

Finding security holes in Zoom

writing about encryption and security

fuzzing

Hacking Bluetooth

ISOC-SE

the swedish top level domains .se and .nu

the internet in Sweden

beatboxing

pentesting

enumerating existing users based on validation time

updated, security by default systems

network logging

Programming

leaving python 2

Customizing Kali linux

Time-of-check to time-of-use attacks

writing exploits

External links:

https://triop.se

https://kryptera.se

https://web.archive.org/web/20081102073248/http://bloggz.se/

https://web.archive.org/web/20110630210858/http://bloggy.se/

https://en.wikipedia.org/wiki/Memcached

https://wpsec.com/

https://utvbloggen.se/

https://se.linkedin.com/in/jonaslejon

https://www.youtube.com/channel/UCI49rLPi_Lbbux5eo8ewLKA

https://en.wikipedia.org/wiki/Dave_Aitel

https://github.com/SofianeHamlaoui/Spike-Fuzzer

https://isoc.se/

https://internetstiftelsen.se/en/

https://www.netnod.se/

https://en.wikipedia.org/wiki/Kali_Linux

https://en.wikipedia.org/wiki/Arcade_Fire

https://en.wikipedia.org/wiki/Time-of-check_to_time-of-use

https://github.com/juliocesarfort/public-pentesting-reports

https://www.hackerone.com/

https://www.bugcrowd.com/

https://twitter.com/jonasl