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Ethereum Classic Labs Plans ‘Defensive Mining’ Strategy as Hash Rate Plummets
21.8.2020
The network’s hash rate has fallen 74% since January
Dust Attacks Make a Mess in Bitcoin Wallets, but There Could Be a Fix
18.8.2020
When dust settles in your home, you sweep it up. But what happens when dust makes its way into your Bitcoin wallet? Cleaning it up may not be so simple
Ethereum Classic 51% Attack: Okex Crypto Exchange Suffers $5.6 Million Loss, Contemplates Delisting ETC
18.8.2020
Cryptocurrency exchange Okex reveals it suffered the $5.6 million loss as a result of the double-spend carried out by the attacker(s) in Ethereum Classic 51% attack. Okex says it fully absorbed the loss as per its user-protection policy while insisting that the attack did not cause any loss to...
Bitcoin’s Hashrate Hits Record High 130 EH/s, as BTC Price Faces Resistance at $12,000
17.8.2020
Bitcoin’s seven-day average hashrate has reached a new all-time high of 130 exahash per second (EH/s) – a feat that might positively influence the asset’s price, while adding to the fundamental strength of the Bitcoin network. According to the latest data from charts.Bitcoin.com...
Ethereum Classic’s Terrible, Horrible, No Good, Very Bad Week
10.8.2020
Ethereum Classic suffered two 51% attacks in the same week. One week later, exchanges, investors and developers are split on the implications
$5.6 Million Double Spent: ETC Team Finally Acknowledges the 51% Attack on Network
6.8.2020
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...
Big Travel Firm CWT Pays $4.5 Million Bitcoin Ransom to Hackers
2.8.2020
CWT, one of the biggest travel companies in the U.S., this week paid $4.5 million in bitcoin to hackers who infiltrated the firm’s computer system, stealing sensitive corporate data. It is unclear whether customer information was also compromised. Reuters reported that the bitcoin wallet...
Single Miner Reorgs Ethereum Classic – Devs Report a Chain Split
1.8.2020
Members of the Ethereum Classic team reported that the network suffered a reorganization (reorg) today. The blockchain network is asking service providers to halt deposits while it carries out maintenance of the chain. The latest event follows a similar attack in January 2019, which led to some...
Blockchain Is Part of Australia’s Cyber Security Solution, Say Experts
31.7.2020
Australian experts suggest blockchain is an integral part to protecting Australia’s business and government from cyber attacks
Raising the Security Bar? Dash Claims a 51% Attack Is Not Enough
30.7.2020
While a 51% attack on Bitcoin will cost a billion dollars, Dash developers say an attacker needs more than money to attack the Dash network
CoinDesk Live Recap: The DAO Hack Is Still a Mystery
30.7.2020
The DAO attack was a foundational episode in Ethereum history. On Tuesday, CoinDesk Live gathered a handful of blockchain veterans to look back
Telecom Argentina S.A Hit by Major Ransomware Attack, Criminals Demand $7.5M Worth of Monero
21.7.2020
Telecom Argentina S.A has been hit by a ransomware attack and the cyber-criminals are demanding $7.5 million paid in the privacy coin monero. The Spanish language site, elperiodista.com quotes anonymous employees stating that the attack started last Wednesday. Initially thought to be a small...
Bitcoin’s Lightning Network Is Vulnerable to ‘Looting’: New Research Explains
6.7.2020
Computer scientists Jona Harris and Aviv Zohar have examined the Lightning Network's "flood and loot" attack which preys on Bitcoin congestion
Researchers Expose Flaw in Bitcoin Wallets That Could Be Exploited for Double-Spending
2.7.2020
A standard way to transact Bitcoin could be vulnerable to double-spending and DoS attacks, ZenGo has found
Ethereum’s $5.2 Million Fee Scandal Explained: Exchange Held to Ransom by Hackers
13.6.2020
Hackers are holding an unnamed crypto exchange to ransom after an alleged cyber-attack forced the Ethereum blockchain to facilitate two separate transactions at a cost of $5.2 million in fees, new information suggests. The hackers may have gained access to the exchange’s funds but failed...
Bitcoin Cash Could Face 51% Attack for $10,000 in Rented Hashpower
10.4.2020
The drop in the Bitcoin Cash hash rate has left it open to 51% attacks — with rented hash power able to target the coin for under $10,000 per hour
Bitcoin Gold Whale Allegedly Controls Half the BTG Supply
6.3.2020
According to a recent study, bitcoin gold (BTG) market prices are being manipulated by a single whale who holds a significant portion of the bitcoin gold in circulation. The Bitcoin Gold network was recently hit with a 51% attack that caused two blockchain reorganizations. The team of...
US Charges North Korea-Linked Chinese Nationals for Laundering Over $100 Million in Stolen Cryptocurrency
3.3.2020
The U.S. government has charged two Chinese nationals involved in laundering stolen cryptocurrency worth $100 million from an exchange allegedly for the benefit of North Korea. They are linked to the U.S.-designated North Korean state-sponsored Lazarus Group. A total of 113 cryptocurrency accounts...
Bitcoin Mining Investment Strong – BTC Hashrate Surpasses All-Time High
2.3.2020
On Monday, March 2, miners processing blocks on the BTC network surpassed the network’s all-time high as the overall hashrate touched 136 exahash (EH/s). The record-breaking achievement happened despite the price of BTC dropping below the $9K region throughout the course of the last week....
No, Concentration Among Miners Isn’t Going to Break Bitcoin
20.2.2020
Bitcoin's resilience doesn't depend on widely distributed mining power. It just requires self-interested miners, says CoinDesk columnist Hasu