Defcon hackers crack physical bitcoin Casascius coins
The Casascius coin was shown to be vulnerable to physical attack at this year's Defcon conference.
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Aug 13, 2013 at 10:53 a.m. UTC
Aug 13, 2013
Physical Bitcoins
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Firmcoin - a new physical form of bitcoin
Firmcoin is a new physical representation for bitcoins, a reusable NFC card.
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Jun 14, 2013 at 1:25 p.m. UTC
Jun 14, 2013
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What's a Casascius coin?
Mike Caldwell first introduced physical bitcoins for purchase in 2011. He coined the name “Casascius” from an acronym for “call a spade a spade.”
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May 9, 2013 at 3:14 p.m. UTC
May 9, 2013