GMO to Unveil First Japan-Made BTC Miner

B2 proved to be the first miner, which uses 7-nm semiconductor chips, allowing it to gain performance and efficiency advantages over other devices on the market
05 June 2018   405

Tokyo's technology company GMO Internet introduced the first bitcoin miner, fully developed in Japan, CCN reports.

B2 also proved to be the first miner, which uses 7-nm semiconductor chips, allowing it to gain performance and efficiency advantages over other devices on the market. Antminer S9 from Bitmain uses 16-nm chips, and DragonMint Halong Mining - 10-nm chips, which are produced by Samsung.

Yuji Nakamura Twitter
Yuji Nakamura Twitter

GMO considers the release of its own miner as the first step in the competition with Bitmain, which currently accounts for about 80% of ASIC-miners.

Although B2 development took place in Japan, the manufacture of 7-nm chips for new devices is conducted in Taiwan, probably by TSMC, which also supplies Bitmain chips.

B2 will cost $ 1,999, compared to $ 837 for S9, however, by its characteristics it significantly exceeds the flagship product of Bitmain. GMO reports that B2 can reach 24TH / s, versus 14TH / s in S9, with a power consumption of 1950 watts. GMO will begin accepting pre-orders for B2 on June 6, and the first devices will be delivered to the miners in October.

Chinese Hackers Mined $800k Worth Siacoin Hiddenly

According to the police, hackers in collusion with serving companies hacked 100,000 computers in Internet cafes in 30 Chinese cities
19 June 2018   119

In China, 16 people were arrested who earned $ 800,000 on the illegal mining of Siacoin cryptocurrency in the Internet cafes in dozens of Chinese cities, CoinDesk reports.

According to the police of Chinese Ruian (Zhejiang Province), hackers in collusion with serving companies hacked 100,000 computers in Internet cafes in 30 Chinese cities . Their income was 5 million yuan ($ 800,000).

Hackers used a malicious program that used the computing resources of infected devices to extract Siacoin crypto currency. Malicious software was sold to employees of computer maintenance companies who could download it to a PC in an Internet cafe during scheduled checks.

Suspicions arose in July 2017, when employees of Internet cafes in Ruyan noticed that their computers began to work very slowly. The CPU performance dropped by 70% even after the reboot.

Around the same time, the price of Siacoin according to CoinMarketCap grew by 400% from $ 0.002 in May to more than $ 0.01 in July. Accounts for utility services of Internet cafe Ruiana during this period also significantly increased. This caused their owners to contact the police.

Most Internet cafes in Ruian were served by one company. Its executive director was arrested in August last year, and disclosed information about hackers.