BitFlyer released prepaid Visa cards

Now customers of the largest Japanese cryptoexchange will be able to prepaid Visa card with Bitcoins
08 October 2017   1970

The largest Japanese crypto exchange bitFlyer has provided users with the opportunity to use prepaid Visa cards. This is reported by Bitcoin.com.

A new option appeared thanks to the cooperation with the Vandle Card. Users will be able to replenish the card with bitcoins on the bitFlyer website or through third-party cryptowallets. Also, according to the representatives of the exchange, the first 1000 users of the new service will receive gifts. The opportunity to order a card appeared on October 6.

Holders of prepaid cards from bitFlyer will be able to pay for goods and services at any outlet that accepts Visa cards. Also, representatives of bitFlyer noted that the company will not charge fees for the issue and maintenance of the card. You can top-up the balance on the website of bitFlyer or via the mobile application. The currency of the card is displayed in Japanese yen.

As for the limits, within a month, 30,000 yen (about $ 267) can be added to the card, for the entire period of use - 1 million yen ($ 8879). In this case, the balance should not exceed 100 thousand yen. The card is valid for five years.

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.