Cyber ​​attacks are actions performed by criminals, who use network vulnerabilities to attack and steal data. Data that is allowed, and which are the main ones stolen, that cause great damage to the company.

In 1971, the first computer worm was created , displaying the words "I am the Creeper: catch me if you can" the threat that paved the way for viruses and cyber attacks that have made headlines in recent years.

The year 2020 was marked by an explosion of cyber attacks. A 400% increase in the number of attacks recorded, according to Next Generation data .

Since one of the ways to prevent and keep a company safe is by knowing the threats, let's take a look at some cyber attacks.

Virus
A virus is a program or code used to damage your computer, corrupt system files and destroy data. The virus remains inactive on the machine until it is executed, that is, it is necessary to run the infected program to infect the computer.

From there, it can infect other computers on the network, steal passwords and data, corrupt files, forward spam to e-mail contacts, or even control the computer.

Worms
Worms are older than viruses, they remained in fashion until the late 90s , arriving as message attachments. One person had to open an e-mail and the whole company was infected in a short time.

Its differential is its ability to spread without action by the end user, unlike viruses, which require action by the user.

Adware
A common adware program redirects searches from a user's browser to web pages with seemingly harmless product promotions.

The purpose of this type of attack is to obtain useful information from users such as: the location, details of access passwords (passwords) and IP addresses of the computer or electronic mail.

A network engineer is a technology professional who has the necessary skills to plan, implement and oversee the computer networks that support in-house voice, data, video and wireless network services.

Ransomware
Also known as " digital hijacker ", ransomware is software that infiltrates a machine, encrypts system data after installation and blocks users from accessing it.

Once executed, the attacker asks for a ransom for the victim, usually done in bitcoin , which is a cryptocurrency.

The ransomware is one of the types of attacks that occur more in Brazil, second in number of global ransomware attacks. The data are from Trend Micro's Smart Protection Network survey .