$5.6 Million Double Spent: ETC Team Finally Acknowledges the 51% Attack on Network

The Ethereum Classic (ETC) blockchain network lost $5.6 million to one miner following a 51% attack initially thought to be a chain split. During the attack, the offending miner managed to double-spend 807,260 ETC ($5.6 million) after spending 17.5 BTC or $200,000 (at time of writing) to acquire the hash power for the attack. The … Read more

Bitcoin Gold 51% Attacked – Network Loses $70,000 in Double Spends

The Bitcoin Gold (BTG) network suffered another set of 51% attacks on January 23-24, as roughly 29 blocks were removed in two deep blockchain reorganizations (reorgs). Reports indicate that more than 7,000 BTG was double spent as the chain suffered a loss of $70,000 in two days. Also read: Bitcoin Gold Hacked for $18 Million … Read more

Android Tool Lets You Check Crypto Payment Apps for Double-Spends

The risk of double-spending has traditionally been a major obstacle to creating and fully using digital money. A flaw of this kind would be detrimental to the credibility of any system claiming to provide universal solutions to the financial needs of our era. Whoever created Bitcoin elegantly solved the difficult task, but a growing ecosystem … Read more

Ten Years Ago Today, the Whitepaper Changed the Way We Look at Money

On Oct. 31, 2008, at 2:10 p.m. EDT, the creator of the Bitcoin network, Satoshi Nakamoto, announced the publication of the protocol’s whitepaper using a Vistomail email address. It’s now been 10 years to the day since Satoshi’s idea was first revealed to the world — an idea that unleashed the first pure peer-to-peer version of … Read more

Wendy McElroy: Free-Market Law Enforcement for Crypto

The Satoshi Revolution: A Revolution of Rising Expectations. Section 4: State Versus Society Chapter 9, Part 6 Government is a law factory. It passes laws in the same manner that another type of factory extrudes metal molding…But, whereas a factory which extrudes metal molding is providing a product which is useful to the citizens generally, … Read more

Someone Just Spent $2,000 On a $1,000 Gift Card Trying to “Double Spend” BCH

It is a common practice nowadays for online ventures to invite white hat hackers to attack their systems via security challenges or cyber bug hunts. Companies usually do this to learn what vulnerabilities they might have and improve, or to show their confidence in their existing defense capabilities. The method can also be used to … Read more