1. Goodin D Wanna Decryptor: the NSA-derived ransomware worm shutting down computers worldwide, https://arstechnica.com/information-technology/2017/05/an-nsa-derived-ransomware-worm-is-shutting-down-computers-worldwide/.
2. Kolias C, Kambourakis G, Stavrou A, Voas J (2017) DDoS in the IoT: mirai and other botnets. Computer 50(7):80–84
3. Janbeglou B, Naderi H, and Brownlee N, Effectiveness of DNS-based security approaches in large-scale networks, in Proc 28th Int Conf WAINA, Victoria, BC, Canada, pp. 524–529, 2014.
4. Bendel S, Springer T, Schuster D, Schill A, Ackermann R, Ameling M (2013) A service infrastructure for the internet of things based on XMPP. Proc IEEE Int Conf PERCOM Workshops, San Diego, CA, USA, pp 385–388
5. Fan Z, Xiao Y, Nayak A et al (2019) An improved network security situation assessment approach in software defined networks. Peer-to-Peer Netw Appl 12:295–309