1. Ghafur, S., Kristensen, S., Honeyford, K., Martin, G., Darzi, A., Aylin, P.: A retrospective impact analysis of the WannaCry cyberattack on the NHS. NPJ Digit. Med. 2(1), 1–7 (2019)
2. Analytica, O.: Efforts to curb ransomware crimes face limits. Emerald Expert Briefings (oxan-db) (2021)
3. Lecture Notes in Computer Science;P Maymounkov,2002
4. Lecture Notes in Computer Science;A Rowstron,2001
5. Zhao, B.Y., Kubiatowicz, J.D., Joseph, A.D.: Tapestry: an infrastructure for fault-tolerant wide-area location and routing. Technical report No. UCB/CSD-01-1141 (2001). http://people.cs.uchicago.edu/~ravenben/publications/CSD-01-1141.pdf