The popular US-based cryptocurrency exchange claimed to resume registration of new users after a four-month break, but after several hours was forced to suspend it again.

On 10 April, Bittrex announced that it reopens registration for all persons willing to become exchange's customers, but on the same day it was forced to suspend it due to an enormous influx of new users. The exchange is working to eliminate technical problems and promises that this function will soon be available again.

On 14 December, Bittrex announced that it temporarily suspended registration of new customers to ensure stability and security for its existent users. It resulted in unofficial and illegal sale of Bittrex accounts at various forums. The price for Bittrex accounts varied from several hundred to tremendous $75,000.

Potential customers who wanted to officially register on the platform during this period were added to the special waiting list, and now they need to go through the identification process to complete the registration process.

During this 4-month period of registration suspension the exchange improved and updated the trading platform and its website, increased usability and security system.

“We’ve spent the past four years building Bittrex on the founding principles of innovation, security and responsibility,” said Bittrex CEO Bill Shihara in a statement. “Given these principles, pausing new user signups during a period of immense trading volume was not a decision we took lightly, but our responsibility to provide customers with a reliable platform and outstanding customer service, made it the right thing to do.

The company expanded its staff, from 4 technical support engineers to 100 persons, including former employees from Amazon, the US Department of Justice and Homeland Security.