1. The 5 motives for DDoS attack. https://arch.simplicable.com/arch/new/the-5-motives-for-DDoS-attack. Accessed 9 Jan 2019.
2. NIST Cloud Computing Program—NCCP. https://www.nist.gov/programs-projects/nist-cloud-computing-program-nccp. Accessed 9 Jan 2019.
3. Top 10 security concerns for cloud-based services. https://www.incapsula.com/blog/top-10-cloud-security-concerns.html. Accessed 9 Jan 2019.
4. Dhanapal, A., et al. (2013) Data usage security, accounting and auditing in cloud computing. In National Conference on Networking and Communication Systems (NCS) (vol. 2, pp. 226–229).
5. Denial of service attack: what is a dos attack? https://security.radware.com/ddos-knowledge-center/ddospedia/dos-attack/. Accessed 9 Jan 2019.