The Swedish cryptocurrency exchange QuickBit was hit with a
data breach affecting about 2 percent of its customer base through an
unprotected MongoDB.

Published reports put the number of accounts exposed at 300,000 with QuickBit stating the data involved was left unprotected while it was being migrated to a safer environment with names, addresses, e-mail addresses and incomplete payment card information being involved. The company noted that no passwords, Social Security Numbers were exposed nor any cryptocurrency keys or financial transactions affected.

“QuickBit has recently adopted a third-party system for
supplementary security screening of customers. In connection with the delivery
of this system, it has been on a server that has been visible outside QuickBits
firewall for a few days, and thus accessible to the person who has the right
tools,” the company said in a translated statement.

Once discovered the database was taken offline and Quickbit said
none of the information involved could be used to harm customers or the
corporation.

Cryptocurrency exchanges have been victimized repeatedly
over the last year with six Europeans being arrested in June for running a typosquatting
scam that netted $27.3 million in cryptocurrency. In September 2018 the
Japanese exchange Tech
Bureau’s Zaif
was hit losing $60 million.