Featured Tutorials
Your Passwords Stink – And How to Fix Them
Learn about the basics of password security – length vs. complexity for security, and how they are stored and cracked. Finally, why using a password manager to generate and store secure passwords is a good idea.
AddrJack – An Educational Bitcoin Address-Swapping Malware Demo
An educational malware demo showing how Bitcoin addresses can be detected and hijacked from the copy-paste buffer – thus sending funds to an attacker’s address instead of the intended recipient.
Bitcoin Investment Scams, Investigated!
Hate scams? Me too! Learn about social engineering based attacks and how to avoid them. Keep you Bitcoin safe with free and open source tech education.
DEFCON SafeMode – Building a Microcontroller Bitcoin Address Generator
My talk from this year’s DEFCON in Safe Mode, on building an open source, open hardware offline keypair generator for bitcoin, bitcoin cash, litecoin, ethereum, and digibyte.