Raiden live on Ethereum testnet

Raiden, one of Ethereum’s highly anticipated scaling solutions, is now active on a test network
07 September 2017   1818

Raiden, one of Ethereum’s highly anticipated scaling solutions, is now live on a test network. The Ethereum payment network was announced on GitHub yesterday. The solution is to allow for micropayments, lower fees, and near to instant settlements.     

According to the report, the technology is similar to the proposed Bitcoin Lightning Network. The basic idea is to switch from a model where all transactions hit the shared ledger on the blockchain (which is the bottleneck) to a model where users can privately exchange messages which sign the transfer of value. As detailed, Raiden uses a network of p2p payment channels and deposits in Ethereum to preserve the guarantees expected from a blockchain system.

Raiden is implemented as an extension to Ethereum. A Raiden node runs alongside an Ethereum node and communicates with other Raiden nodes to facilitate transfers and with the Ethereum blockchain to manage deposits. It offers a simple API which makes it easy to use Raiden in DApps.

State channels are an important technology that has the potential to greatly improve the scalability and privacy of many categories of blockchain applications; in conjunction with sharding and other privacy-preserving cryptographic technologies, they are an important ingredient in helping decentralized systems to achieve the properties that mainstream individual and institutional users expect and deserve.
 

Vitalik Buterin
Ethereum founder

As ethnews.com details, Raiden’s off-chain transactions, which take place on “state channels,” are built from Ethereum executable distirbed code contracts (smart contracts). Raiden will facilitate the transactions by utilizing its own nodes, running alongside Ethereum nodes, to communicate with other Raiden nodes.

Chinese Miners to Fall Victims of Ransomware

Looks like ransomware came together with "improved" firmware, that should "overclock" device
21 January 2019   79

In China, a ransomware spreads, victims of which are Bitcoin miners. The damage from its activities is measured in tens of thousands of dollars. This is reported by Trustnodes.

The virus infects miners, released by Bitmain, and requires you to send 10 bitcoins, otherwise threatening to cause overheating of the device.

The problem is solved by formatting the SD card of the infected device, however, as Trustnodes notes, the whole process can take up to four days, while malicious software rapidly spreads to the other miners.

Compromised device
Compromised device

Probably, the virus comes with an "improved" firmware for miners. Some owners install such firmware to “overclock” their ASIC devices and improve their performance.

The first messages about the virus refer to August last year. In particular, Antminer S9, T9 and even L3 + for Litecoin were attacked. Over time, the malware has been improved. Now its distributor himself can decide when to display a message requesting a ransom. One miner also said that one night the address to which the 4,000 devices belonging to him sent the mined cryptocurrency was changed to the address of the hacker, which brought him $ 8,000.