Brazil will be the fifth country with the most attacks in 2021

The year 2021 was marked by technological innovation that took over the market in many sectors, but also registered the addition of cyber attacks. There are hacker attacks, data leakage and hijacking, system intrusions and, as a result, a lot of money is lost.

According to the German consultancy Roland Berger, Brazil was the fifth country with the most cyber crimes last year, with 9.1 million incidents in the first quarter alone – more than in the previous year. whole of 2020.

With the General Data Protection Law (LGPD), it has become more difficult to store and store information, especially in The big companies, however, the number of attacks in 2021 have produced many problems. As the growth of online businesses and the relationships between people on the Internet, the treatment of personal data must be consistent with this growth, but, unfortunately, the concern of the Internet use is about saving money knowing that the right thing is not far away. .

The internet has become an important part of people’s lives. Although it is not enough for a part of the population of Brazil, it can hurt and cause losses. In this text, the aim is to recall the cases of data leakage in large companies and tourism related to the effective use of the most important means of communication in the world – which is growing.

What makes these major cases of data leakage worse is the value they represent and the flaws in companies’ security protocols. This is the main reason for the use of data protection systems, whether in large, medium or small companies – and at home.

According to an article published by Forbes, the data leak ranged from full name, email and address to bank details.

Major companies such as Atento, CVC, Facebook, Lojas Renner, Porto Seguro and Serasa Experian have made cyberattacks in 2021. Remember some cases and stay still.


The systems of the CVC travel agency were hijacked and this caused inconvenience to the passengers during the journey. According to the investigation, the ransomware attack was made from the information of the employees, which was released at the end of August, although the thesis has not been confirmed by the company.

At that time, CVC reported that there was no leakage of internal information, but it was estimated that a loss of BRL 30 million per day of the termination of its services.


One of the cases of attacks in 2021 will not be forgotten in April of last year, when there was a Facebook data leak. This event reached eight million Brazilians from a total of 533 million internet accounts worldwide.

Among the information is email address, geolocation, network profile, business history and phone number. According to Facebook, the leak is the result of a software configuration flaw. The error in the data of many people has been reported on social media.

Renner Stores

The ransomware attack on the company’s website took place in August of last year. At the time, the company said there was no leakage of personal data from its customers and said it had not paid a ransom.

how to protect yourself

In the age of the Internet, sharing personal information in any environment is a real problem. hacker attack. Images on social media and the opinions expressed, even if private, can be a difficult issue to deal with – and sometimes impossible, to fly.

In general, in the case of environments and distributed data, in addition to cloud computing, it is necessary to monitor and secure the information, from the use of encryption in communication (VPN), and the verification of the security of both environments, such as the use of antivirus/EDR, firewall, to analyze the environment and parameters to help detect and respond to a malicious device or activity.

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