[lozf]

Deviant Ollam & Howard Payne did a great talk on Elevator Hacking at Def Con 22.

You can catch it at:

https://archive.org/details/Defcon22_Talk29/DEF+CON+22+Hacki...

or

https://www.youtube.com/watch?v=oHf1vD5_b5I [01:00:15]

[rozab]

Deviant Ollam's talks are always first class. I also love this one, about physical pentesting in general:

https://youtu.be/rnmcRTnTNC8

[BigJono]

This is one of my favourite talks ever. I couldn't have given less of a shit about the topic and wasn't expecting to watch more than 5 minutes of it. Nek minnut the video is ending and I wanted another hour of it haha.

[dlgeek]

Look for "This key is your key, this key is my key" by the same pair. It's basically that.