O texto a seguir deve ser utilizado para responder às questões de números 21 a 23.

Historically, information security has been called a number of different things such as:

• Data security;

• IT Security;

• Computer security.

But these terms (except possibly data security) ignore the fact that the information that is held on the computers is almost always and most certainly worth many times more than the computers that it runs on. The correct term is ‘information security’ and typically information security comprises three component parts:

• Confidentiality. Assurance that information is shared only among authorised persons or organisations. Breaches of confidentiality can occur when data is not handled in a manner appropriate to safeguard the confidentiality of the information concerned. Such disclosure can take place by word of mouth, by printing, copying, e-mailing or creating documents and other data etc.;

• Integrity. Assurance that the information is authentic and complete. Ensuring that information can be relied upon to be sufficiently accurate for its purpose. The term ‘integrity’ is used frequently when considering information security as it represents one of the primary indicators of information security (or lack of it). The integrity of data is not only whether the data is ‘correct’, but whether it can be trusted and relied upon;

• Availability. Assurance that the systems responsible for delivering, storing and processing information are accessible when needed, by those who need them.

(Extraído de: “An Introduction to Information, Network and Internet Security.

What is ‘Information Security’?” The Security Practitioner

http://security.practitioner.com/introduction/infosec_2.htm)

                    Vigilance needed to ensure safe infant food

                   WHO and FAO alert countries to possible spread of

                            melamine-contaminated dairy products

      WHO and the UN Food and Agriculture Organization (FAO) are urging affected countries to ensure safe feeding of millions of infants following the ongoing melamine-contaminated milk crisis in China. The two agencies also call on countries to be alert to the possible spread of melamine-contaminated dairy products.

      “While breastfeeding is the ideal way of providing infants with the nutrients they need for healthy growth and development, it is also critical to ensure that there is an adequate supply of safe powdered infant formula to meet the needs of infants who are not breastfed”, said Dr Jorgen Schlundt, Director of the WHO Food Safety Department.

      Replacing powdered infant formula with other products such as condensed milk, honey mixed with milk, or fresh milk is inappropriate as such products would put at risk the safety and nutritional status of this vulnerable population group, the two agencies advised.

      “Restoring consumer confidence is critical. Melamine-contaminated products should be removed from the food chain in order to prevent further exposure. The safe supply of dairy products needs to be restored immediately,” said Dr Ezzeddine Boutrif, Director of the FAO Nutrition and Consumer Protection Division.

Safe feeding for infants

      WHO recommends that all infants should be fed exclusively with breast milk for the first six months of life. No other liquid or food, not even water, is needed during this period. Thereafter, infants should receive adequate and safe complementary foods while breastfeeding continues up to two years of age and beyond.

      Following reports of findings of imported melaminecontaminated products in several countries over the last two weeks, countries should closely monitor their markets. The two agencies highlighted that melamine-contaminated products could reach markets in other countries through both formal and informal trade. Getting information about the origin of the product, up-to-date recall information or in some cases testing for melamine contamination might be considered. If found contaminated, appropriate actions such as product recall and safe disposal should be taken, based on an assessment of the risk to human health.      

Safe supply of food critical 

      Food safety is not the sole responsibility of public authorities. The food industry is also responsible for ensuring a safe supply of food to the consumer. “It is critical that the industry strongly invests in food safety and adopts a food safety culture covering the food chain from raw materials through to the final product,” said Dr Boutrif.

      Incidents such as melamine contamination in China not only impact food safety and human health but also put the livelihoods of hundreds of millions of dairy farmers at risk. “There is a need for countries to do major investment in strengthening their food control and food-borne disease surveillance systems as it could minimize the potential occurrence of food safety incidents like this one”, said Dr Schlundt. 

      The melamine-contaminated dairy products event first came to the attention of the international organizations on 11th September. Both WHO and FAO have used the International Food Safety Authorities Network (INFOSAN) to inform and update national food safety authorities on this crisis, one of the largest in recent years.

      Over 54,000 children have sought medical treatment in China after drinking melamine-contaminated infant formula. Almost 12,900 are currently hospitalized. 

      Melamine is commonly used in food contact materials (e.g. containers, labels, etc.) and can also be used in agriculture production such as fertilizer. Whether this has a potential for carry-over into food at low concentrations (usually in the range of microgram per kilogram) and further impact on human health may need further evaluation.

      Melamine on its own is of low toxicity. But animal studies have suggested that kidney problems occur when melamine is present in combination with cyanuric acid, a potential impurity of melamine. The level of melamine found in the contaminated infant formula has been as high as 2,560 miligram per kilogram of food, while the level of cyanuric acid is unknown.

                                                                          Available in: http://www.who.int 

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DIET DRINKS "LINK TO DEPRESSION" QUESTIONED

Experts are questioning whether diet drinks could raise depression risk, after a large study has found a link.

    The US research in more than 250,000 people found depression was more common among frequent consumers of artificially sweetened beverages. The work, which will be presented at the American Academy of Neurology’s annual meeting, did not look at the cause for this link.

    Drinking coffee was linked with a lower risk of depression.

    People who drank four cups a day were 10% less likely to be diagnosed with depression during the 10-year study period than those who drank no coffee. But those who drank four cans or glasses of diet fizzy drinks or artificially sweetened juice a day increased their risk of depression by about a third. Lead researcher Dr Honglei Chen, of the National Institutes of Health in North Carolina, said: “Our research suggests that cutting out or down on sweetened diet drinks or replacing them with unsweetened coffee may naturally help lower your depression risk.”

    But he said more studies were needed to explore this. There are many other factors that may be involved. And the findings – in people in their 50s, 60s, 70s and 80s and living in the US – might not apply to other populations. The safety of sweeteners, like aspartame, has been extensively tested by scientists and is assured by regulators.

    Gaynor Bussell, of the British Dietetic Association, said: “Sweeteners used to be called ‘artificial’ sweeteners and unfortunately the term ‘artificial’ has evoked suspicion. As a result, sweeteners have been very widely tested and reviewed for safety and the ones on the market have an excellent safety track record. However, the studies on them continue and this one has thrown up a possibly link – not a cause and effect – with depression.”

(http://www.bbc.co.uk/news/health-20943509.09.01.2013. Adaptado)