【図表】
Distribution of DDoS attacks by country, Q4 2018 and Q1 2019
出典: https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2019/05/20134816/en-ddos-by-countries.png
【ブログ】
◆DDoS attacks in Q1 2019 (SecureList, 2019/05/21 10:00)
https://securelist.com/ddos-report-q1-2019/90792/