Symantec has issued The Internet Security Threat Report, a document which provides an overview and analysis of global threat evolution in 2013. Security experts are observing a significant increase in the number of targeted cyber-attacks, it has been estimated that the growth is by 91 per cent in 2013 respect previous year, but most concerning is the fact that their duration is increasing too. The industries that most of all are exposed to cyber attacks are the energy (oil and gas) and manufacturing industries, both included in the category named mining, most targeted attacks last year were against the governments and the services industry.”]