Samourai Wallet: SegWit2x is an attack on the network

Another Bitcoin-related company expressed its position regrading upcoming SegWit2x
18 October 2017   932

Samourai Wallet team said that the SegWit2x is a controversial and unnecessary change in the current rules of the network and it is the attempt of a small group of players to take control over the development of the open code of bitcoin. This is stated in the official blog of the company.

As noted in the statement, Samourai Wallet supports the development of open source code by the Bitcoin Core team, which, according to company representatives, timely introduces all the necessary updates. In this regard, the service will support the longest chain of blocks, compatible with Bitcoin Core 0.15 nodes.

The S2X hard fork is particularly troubling as the development team have NOT added an important safeguard known as ‘replay protection’ to their software. Without replay protection any transaction sent on either of the chains may also be sent on the other chain (‘replayed’), leading to the high potential of users losing funds. Because of the willful insistence by the developer(s) to not add replay protection, we are classifying this hard fork as an attack on the network.
 

Samourai Wallet team

In this regard, the service will offer additional measures to protect against repetitive playback in the case of hard-core.

It is also stressed that Samourai Wallet will not provide users with access to the equivalent number of S2X tokens, and will offer to convert them to BTC at the market price.

Ryuk Ransomware Team to Get 705 BTC

CrowdStrike and McAfee believes the program was created and supported by Russians
15 January 2019   97

In less than six months, hackers got 705 bitcoins through Ryuk ransomware, reports The Block.

Until recently, the group of hackers GRIM SPIDER behind Ryuk was supposed to be operating from North Korea. However, according to the companies CrowdStrike and McAfee, the program was created and supported by Russian hackers.

Ryuk is distributed via email-phishing, where the TrickBot Trojan is involved. The main objectives of the ransomware program are large companies and government organizations. Ryuk blocks the victims' hard drives until they pay the ransom. The amount of the latter often depends on the size and significance of the organization.

The program is "famous" for the impressive amounts of required buybacks:

To date, the lowest observed ransom was for 1.7 BTC and the highest was for 99 BTC. With 52 known transactions spread across 37 BTC addresses (as of this writing), GRIM SPIDER has made 705.80 BTC, which has a current value of $3.7 million. With the recent decline in BTC to USD value, it is likely GRIM SPIDER has netted more.
 

CrowdStrike

705 bitcoins at the current exchange rate is about $ 2.6 million.