Phew! An audacious crime... that didn't work out.
Read moreStolen Bitcoins Returned
December 22 2021The US has returned $154 million in bitcoins stolen by a Sony employee. However, on December 1, following an investigation in collaboration with Japanese law enforcement authorities, the FBI seized...
Read moreGoogle Shuts Down Glupteba Botnet, Sues Operators
December 9 2021Google took steps to shut down the Glupteba botnet, at least for now. (The botnet uses the bitcoin blockchain as a backup command-and-control mechanism, making it hard to get...
Read moreWire Fraud Scam Upgraded with Bitcoin
November 16 2021The FBI has issued a bulletin describing a bitcoin variant of a wire fraud scam:
As the agency describes it, the scammer will contact their victim and somehow...
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I Am Not Satoshi Nakamoto
September 24 2021This isn’t the first time I’ve received an e-mail like this:
Hey! I’ve done my research and looked at a lot of facts and old forgotten archives. I know that...
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Disrupting Ransomware by Disrupting Bitcoin
July 26 2021
Ransomware isn’t new; the idea dates back to 1986 with the “Brain” computer virus. Now, it’s become the criminal business model of the internet for two reasons. The...
Read moreBut Bitcoins are anonymous! However could they get refunded?
Read moreIdentifying the Person Behind Bitcoin Fog
May 3 2021
The person behind the Bitcoin Fog was identified and arrested. Bitcoin Fog was an anonymization service: for a fee, it mixed a bunch of people’s bitcoins up so...
Read moreIllegal Content and the Blockchain
March 17 2021Security researchers have recently discovered a botnet with a novel defense against takedowns. Normally, authorities can disable a botnet by taking over its command-and-control server. With nowhere to go...
Read moreNvidia announces official “anti-cryptomining” software drivers
February 22 2021"It's a DoS, Jim, but not as we know it."
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