NSA Tracks BTC Users, Snowden Says

According to the documents from former NSA agent, BTC transaction monitoring is one of the main priorities of the agency
21 March 2018   682

The US National Security Agency monitors actions in the bitcoin blovkchain in order to identify users of crypto currency. This is reported by The Intercept, which received a set of documents from a former employee of the NSA Edward Snowden, according to which the monitoring of BTC transactions is one of the main priorities of the agency.

They also say that the work of the NSA in this direction may not be limited to analyzing the blockchain and include the detection of crypto users.

The published document indicates that the NSA has become more likely to collect passwords of bitcoin users, data about their activity on the Internet and the identity of their devices.

According to the report, the NSA monitors bitcoin users from 2013 through a program code-named OAKSTAR, as well as the MONKEYROCKET program, which is the OAKSTAR project. The data collected over the years can allow the NSA to accurately identify participants in crypto-currency transactions.

For information on bitcoin users, the NSA can use XKeyScore, a powerful system for monitoring Internet activity, which became known in 2013, when Snowden revealed information about the surveillance of the NSA.

The document says that the information collected by the Agency is stored in the file "Provider user full.csv", and details of identification of time stamps and Internet addresses of users for the purpose of determining their location are given.

HashFlare Users to Face Withdrawal Issues

Looks like Bitcoin cloud mining is not super profitable
18 July 2018   70

Users of HashFlare mining pool can't withdraw their funds, while their contracts are threatened with a temporary ban. Even lower restrictions on withdrawal of funds in the amount of 0.03 BTC caused problems for users, but the service raised the threshold to 0.05 BTC and 0.1 ETH . This is reported by Cryptovest.

In addition, financial pyramids are often promoted under the guise of mining contracts for cloud mining. For last few months, there was a big jump in mining difficulty of many cryptocurrencies, so, old contacts had become unprofitable.

As reported, the reason for the locked funds dates back further - at the beginning of June, so much hashing power was flowing into the Bitcoin network that contracts saw all the mined coins go toward their maintenance fee.

Currently, more and more users who have purchased contracts at earlier stages are facing the fact that they can not withdraw their funds. One of them managed to return the money spent through the bank card operator after filing a corresponding complaint.

To anybody that purchased a Hashflare cloud mining contract with a credit card, it might be possible to get a refund with that credit card as one of my followers tipped me. He bought his contracts at the end of 2017.
 

bccponzi at Twitter

The hash rate of bitcoin increased from 13 EHash / s at the beginning of the year to more than 40 EHash / s in recent months. The difficulty of mining in the present conditions depends on the circumstances of the specific miner. The cost of bitcoin mining for some of them is $ 4,400, while others spend about $ 5,800. However, in 2018, cloudy mining is called an even more dubious occupation than before, especially when it comes to mining bitcoin.