I need help finding a response to the following paragraph

I need help finding a response to the following paragraph.Technological advances such as increasing Internet bandwidth and advances in virtualization have given rise to cloud computing (the "cloud") is a metaphor for the Internet; see Figure 3.20). As defined by the National Institute of Standards and Technology (NIST)"Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable sources( e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction" (http://csrc.nist.gov/publications/nistpubs/800-145/SP800-145.pdf (Links to an external site.))" (Valacich & Schneider . 2015, sec. 3.4).

The disadvantages are always a breach in software or allowing a third party access. Technical issues could also be a disadvantage to cloud computing. Efficient costs could play a role in it as well.