According to the Kraken team, the attacks began on October 31, when an increasing number of users reported server issues and connection problems while logging into their Kraken accounts. The majority of its users were unable to access their funds and withdraw bitcoins due to gateway error and server glitches.

During this time, Kraken announced on Twitter:

The DDoS attacks continued in small doses until November 4, when the exchange was hit hard by a series of major DDoS attacks, resulting a significant delay in server connections for a few hours until the website finally went down for straight hours, enraging users who were hoping to withdraw their bitcoins as the price of bitcoin peaked US$500 on international exchanges.