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   4. https://resources.infosecinstitute.com/futureinformation-security/
   5. https://blocksdecoded.com/cryptocurrency-hacks/ 6. https://www.liteforex.com/blog/forinvestors/cryptocurrency-attacks-types-ofvulnerabilities-risks-and-results/
   6. Yujin Kwon, Dohyun Kim, Yunmok Son,,Be Selfish and Avoid Dilemmas: Fork After Withholding (FAW) Attacks on Bitcoin,CCS‘17, October 30- November 3, 2017, Dallas, TX, USA
   7. https://www.cloudflare.com/learning/ddos/cryptocurr ency-ddos-attacks/
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   9. Aaron Zimba, Zhaoshun Wang & Mwenge Mulenga (2019) Crypto jacking injection: A paradigm shift to crypto currency-based web-centric internet attacks, Journal of Organizational Computing and Electronic Commerce, 29:1, 40-59
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