The campaign of the cryptocurrency investor and entrepreneur Trace Mayer, who proposed to withdraw Bitcoins from third-party wallets to private ones, is gaining popularity.

Over the past week, hundreds of its supporters, including such well-known figures like Nick Szabo, one of the pioneers of the blockchain and smart contracts, made corresponding entries on Twitter to support the campaign, dedicated to the 10th anniversary of Bitcoin.

Mayer calls on cryptocurrency owners to control their private keys again.

The co-founder of the Circle cryptocurrency platform, Jeremy Allaire, on Friday gave an interview to the CNBC information portal, in which he said that Bitcoin has great prospects and that it will certainly increase in price in the future.

He was asked about what value Bitcoin would have in 3 years, to which Allaire replied that he did not want to give "significant price forecasts", but nevertheless said: "In my opinion, it will cost much more than it does now."

CEO of the cryptocurrency payment service BitPay Stephen Pair told in an interview with CNBC that the current value of Bitcoin is more related to the speculative component, and only a small part of it is of practical value. However, with his company he plans to change the situation.

"A great influence on the price is exerted by speculation, and the real practical significance of Bitcoin is only a small component of its price. BitPay focuses precisely on this issue - using the platform and providing products that will be valuable to our customers," said Pair.

In a conversation with Bloomberg, a cryptocurrency investor and CEO of Galaxy Digital, Mike Novogratz, compared Bitcoin with a drug, and the current market situation with a "methadone clinic".

BTCC co-founder Bobby Lee predicts that the price of Bitcoin could fall to $ 2,500 in January 2019. Many traders consider this figure too optimistic.

Against the background of an ongoing survey in social networks, in which almost 5,000 people took part, Lee, who is becoming more and more famous for his bullish price forecasts, said that "a large number of purchase and support orders" will help Bitcoin to keep up $ 2000.

The head of Morgan Creek Digital cryptocurrency investment company, Mark Yusko does not lose confidence in the bright future of Bitcoin and cryptocurrencies. 

Despite the continuing decline in the cryptocurrency market, Bitcoin enthusiast and owner of Bitcoin.com Roger Ver in an interview with "Bloomberg Daybreak: Europe" confirmed a positive mood for the future of cryptocurrencies.

At the 2018 Global Tech Forum held in China, the famous billionaire investor Jim Breyer made a negative statement for cryptocurrency investors.

Despite the long decline in cryptocurrency quotes, he still has high hopes for the blockchain business, but he expects the near future will be the worst time for investors.

"We are close to a nuclear winter right now with cryptocurrency," said Breyer, who is famous for investing in popular cryptocurrency projects: Circle, Ethereum, VeChain and High Fidelity.

The Department of Homeland Security (DHS) is investigating the possibility of tracking cryptocurrency-oriented transactions.

A preliminary tender document published by representatives of the DHS Small Business Innovation Research Program discusses the possibility of using cryptocurrency transactions. Although the document emphasizes the possibility of using cryptocurrencies at both commercial and state levels, special attention is paid to analyzing anonymous cryptocurrencies that are used by criminals.