GreenAddress supports SegWit

Popular bitcoin wallet announced the Segregated Witness support
07 September 2017   1503

Representatives of the popular bitcoin wallet GreenAddress reported about the support for the Segregated Witness (SegWit) solution. 

As noted, users of GreenAddress will receive notification of an upgrade during the next authorization, as well as the choice of whether to support the SegWit solution or not. GreenAddress representatives also note that if the user does not see the appropriate notification about the upgrade, then most likely his version of the wallet is outdated and he needs to be updated to the latest version.

We have supported segwit in our testnet environment for a long time now, and with segwit locked in on the main chain, we have deployed the changes needed to enable this to the main service. When you next log in to your wallet you will be upgraded to segwit and offered the chance to opt-out. If you don’t see the upgrade prompt, your client is too old and you will need to update it. Once segwit is enabled on your account and you have generated at least one receive address, it will be locked in and you will no longer be able to disable it.
 

GreenAddress team

 Also the GreenAddress noted the low cost of SegWit transactions.

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.