Matthias (parasew) is unfortunately in a very bad health condition, and
isn't able to attend defcon this year.
He is very sad about this and apologizes for the inconvenience.
His presentation time-slot can be given to someone else.
Please contact me in case i can help with anything else remotely.
all the best,
RIAT - Institute for Future Cryptoeconomics
Neubaugasse 64-66 / A-1070 Vienna, Austria