The $5 Wrench Attack


Welcome, welcome to One Minute Crypto! I’m your host, Chronos, and today I donated
my cell phone to a guy on the street. You can’t imagine just how happy I felt as
he put his gun back in his pocket. Seriously, though, I thought of that joke
when I saw this online post, talking about bitcoin security. It says, “My wallet words are in a file that is encrypted
using a symmetric AES256 cipher that only exists in my brain. I keep a copy of that file on a thumb drive
in my safe, and on an encrypted USB drive in the trunk of my car. I have about $35 thousand dollars worth of
crypto in my wallets…” Ok, do you see the problem here? In a moment, I’m going to tell you exactly what’s
wrong with this post. But first, today’s sponsor is Americas Cardroom, the
most trusted US online poker site. They are bringing us a massive Venom Tournament
starting November 27th, with six million dollars in guaranteed prizes and a million dollars for first place! Check it out at americascardroom.com. So, what’s wrong with that post about crypto
security? It’s because of a very clever hacking technique
known as the $5 wrench attack. Here’s how the web comic XKCD describes bitcoiners
perception of their security: “His laptop’s encrypted. Let’s build a million-dollar cluster to crack
it.” “No good! It’s 4096-bit RSA!” “Blast! Our evil plan is foiled!” And now, what would actually happen: “His laptop’s encrypted. Drug him and hit him with this $5 wrench until
he tells us the password.” Yeah. The moral of the story is: never talk about
your crypto holdings online. A $5 wrench is more powerful than AES256 symmetric
key encryption, every time. I’m Chronos. Thanks for watching!

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4 thoughts on “The $5 Wrench Attack

  1. This video is sponsored by Americas Cardroom, the most trusted US online poker site. Check out their massive Venom Tournament starting November 27th, with six million dollars in guaranteed prizes! https://americascardroom.com

  2. You ought to have a million subscribers by now, but somehow I'm glad to be one of the few linked to this channel. Keep it up, always informative!

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