On the Valentines weekend 400 Hackers met at a hotel in Garderen. There was the conference: Hackerhotel 2020. It felt like a huge hackerspace meetup with talks and workshops. I’ve followed the hardware hacking workshop by @Jilles_com and learned for to extreme read!
Jos was asked to do his talk om Master Keyed Systems and how to defeat them using impressioning. Summary: “Privilege escalation attack? You are doing it wrong! Use impressioning to your advantage. :)”
If you can’t figure it out from the summary you can find his talk on YT here.