Category Archives: Bitcoin
SCAM – Bitcoin miners sold by organized crime ring

Bitcoin miners are hot. Everyone wants to get one or more. But beware of scams. Here is a big one: Bitmain Antminer S9 for sale with power supply for 500…

Breaking the Ledger Security Model

In this post, I’m going to discuss a vulnerability I discovered in Ledger hardware wallets. The vulnerability arose due to Ledger’s use of a custom architecture to work around many…

NSA Worked to “Track Down” Bitcoin Users, Snowden Documents reveal

INTERNET PARANOIACS DRAWN to bitcoin have long indulged fantasies of American spies subverting the booming, controversial digital currency. Increasingly popular among get-rich-quick speculators, bitcoin started out as a high-minded project to make financial…