Database security Essay Example | Topics and Well Written Essays - 250 words

Database security - Essay Example is is not done, then databases are subjected to several threats that could lead to loss of integrity, loss of availability, and loss of confidentiality (IFIP, 2013). Privacy protection is both a personal and fundamental right for any individual. It is the right of every individual to hold the expectation that organizations that collect information will ensure confidentiality of personal information. One way in which this can be achieved is by ensuring that organizations will collect, maintain, utilize, and disseminate personal information and data only to the extent that is necessary to enable them perform their functions (Doyle & Bagaric, 2005). Privacy laws regulate how entities handle personal information. They also include obligations that govern the collection, use, disclosure, and access to personal information, requiring entities to observe reasonable measures for the protection of personal information in their possession from misuse, loss and from unauthorized access, use, modification or disclosure. The NIST triad for privacy is set under the above set of requirements for privacy. It is a model for information security that incorporates three main components namely confidentiality, integrity, and availability. Each of these components in the triad stresses a key objective for information security. Confidentiality requires that data is only availed to appropriate parties, integrity means the certainty that there is no tampering with the data prior to and after collection, and availability means that the data will be made available as and when needed (Nemati, 2008). IFIP TC11/WG 11.3 International Conference on Database Security, & In Jajodia, S. (2013). Database security XII: Status and prospects : IFIP TC11 WG11.3 Twelfth International Working Conference on Database Security, July 15-17, 1998, Chalkidiki,

Global Warming Essay Example | Topics and Well Written Essays - 3250 words

Global Warming - Essay Example Sun is a continuous source of energy for our earth and its energy reaches the earth in form of electromagnetic radiations. A part of these radiations is absorbed by the outer atmosphere of the earth while the remaining is allowed to enter the lower atmosphere where life exists. The radiations reaching the lower atmosphere are the main source of energy for the organisms living here. Plants absorb this energy and convert it into chemical form which then supports the entire food chain. Humans have also learnt various methods to harness this energy to fulfill their requirements. The part of energy not utilized by humans or plants falls on different parts of dry land and oceans around the world. A very small amount of this energy is absorbed while most of it is reflected back into the atmosphere. The 30% of total energy is reflected back to the sun by the atmosphere and land. The remaining 70% which is initially absorbed by earth either leaves through direct radiation or through conductio n and convection of adjacent layers of air or through the latent heat of vaporization absorbed during cloud formation. Hence almost all the heat absorbed initially by earth is reflected back to the atmosphere. This heat energy which enters the atmosphere should ideally leave the atmosphere through radiation into the outer space. This natural process keeps the temperature of the earth stable within a certain range. Recently, due to human activity, the amount of gases such as carbon dioxide, nitrogen oxides, sulphur oxides and hydrocarbons in the atmosphere has increased substantially.