May 2017 will be remembered for the irruption of the computer virus Wannacry, which appeared in mass media around the world. Although a month later a new virus far surpassed it, the virus Petya, the consequences of Wannacry in companies of the whole planet were very serious. Today in the blog we will see some of the most important cases that demonstrate the devasting reach that these viruses have if you do not take the necessary security measures.

Japan is known as one of the most technologically developed countries, and therefore it seems that it should have been one of the best prepared to face a virus like Wannacry. However, more than 600 Japanese companies were overtaken by the cyberattack. Hitachi, Nissan, a Honda factory and even Osaka Hall were some of those affected.

In Spain, the most mediatic case was Telefonica and the jokes on Twitter towards its IT security chief, the well-known Chema Alonso. In the UK, a pillar such as the National Health Service was also infected by the Wannacry ransomware. In the image accompanying this article, extracted from Applesencia website, you can see in what parts of the world there were infected prints; the resulting graphic is really impressive. As you can see, Eastern Europe, USA and China were the most punished areas.

The keys to prevent malicious viruses such as Wannacry from infecting your company happens, firstly, to have a world-class antivirus. Sophos, one of the premium partners of MyIdeal-IT, has already demonstrated its ability to cope with these attacks when the Petya virus came on the scene. Also in the daily routine, small actions that will help to improve the cybernetic security of our bussiness can be done: to make backups, not opening unsolicited attachments files, to update equipement and programs, to train the employees...

Wannacry virus became a planetary event that affected bussinesses from all around the world, although one positive thing to note is that was an important wake-up call to remind everyone that cyberattacks are a very real possibility and that we should be always prepared to confront and prevent them.