Distributed database that is used to maintain a continuously growing list of records, called blocks
Ukrainian crypto exchange, trading BTC, ETH, Waves and GOLOS, KUNA reports on their social media on being under DDOS attack :
Мы под DDOS, от первой волны отбились, со второй решаем. KUNA is under DDOS now, please be patient, we trying to fix it ASAP.
— KUNA Exchange (@KunaExchange) 21 июля 2017 г.
As the team details, KUNA exchange has successfully dealt with the first wave of the attack.
Unfortunately, now the second one is taking place. According to the company, KUNA's team does their best to fix the problem appeared it as soon as possible.