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Digital currency exchange NiceHash says bitcoin worth nearly $64 million hacked

(Reuters) – Cryptocurrency marketplace NiceHash said the contents of its bitcoin wallet had been stolen in a security breach and one executive said nearly $64 million had been lost.

NiceHash head of marketing Andrej P. Škraba told Reuters on Thursday that the hack was “a highly professional attack with sophisticated social engineering” and that about 4,700 bitcoin, worth about $63.92 million at current prices, were lost.

He said the company was co-operating with local authorities but declined to give more information.

Earlier, Slovenia-based NiceHash said in a statement posted on its website that it had halted operations for 24 hours as it investigated the breach.

NiceHash is a digital currency marketplace that matches people looking to sell processing time on their computers in exchange for the digital currency bitcoin.

NiceHash advised users to change online passwords, saying it was still trying to understand what had happened during the incident.

“We understand that you will have a lot of questions, and we ask for patience and understanding while we investigate the causes and find the appropriate solutions for the future of the service,” the company said in its statement.

Winter holiday travel forecast to give U.S. airlines needed boost

(Reuters) – The holiday travel period will be busier than last year for U.S. airlines, according to an industry trade group on Wednesday, as affordable fares and an improving economy make air travel more accessible.

Airlines for America (A4A) forecasts that 51 million passengers will fly on U.S. airlines globally during the 21-day period from Dec. 15 to Jan. 4, up nearly 3.5 percent from the year prior.

Airlines will welcome a boost to their bottom lines this quarter as significantly higher operating expenses have weighed on profits in recent months.

U.S. carriers have made headlines over the last year for substantial pay increases awarded to pilots and flight attendants. The pay bumps have been a sore spot for investors, who fear that airlines’ labor costs are rising more quickly than profits.

American Airlines(AAL.O) is in a particularly vulnerable position. The carrier disclosed late last month that a system error had awarded too much December vacation time to too many pilots.

American struck an agreement with its pilots union to pay out twice the hourly rate to cover thousands of otherwise pilotless flights.

The carrier had already upset investors earlier in the year by awarding a surprise mid-contract pay increase to pilots and flight attendants, at a projected cost of nearly $1 billion over three years.

The busy holiday period, however, will allow airlines to cushion some of the blow from higher expenses.

A4A said it expects the busiest travel days to land on Dec. 21, 22 and 26.

The trade group said the lightest travel days will be Dec. 16, 24, 25 and 31.

The group credited “affordable fares and expanded route options” for the bump and said that increased competition among carriers has given consumers more flight options.