Due to the growing use of virtualized systems, we have all heard about one of the most frequent latent threats: cyberattacks. These manifest in various ways and are responsible for many failures or even the significant loss of information in large companies or governments.
Think about the Guacamaya Leaks case, which was caused by a cyberattack on state servers and exposed sensitive information in 2022. You may also remember the cyberattack on the Spicejet company in 2022, which led to many of its passengers being stranded.
As one of the most frequent concerns of users in the digital world, it is important to explore the broad terrain of cyberattacks and examine them closely.
What is a Cyberattack?
A cyberattack can be defined as a set of actions aimed at taking control of, destabilizing, or damaging an information system, ranging from a personal device to a network. The goal of cyberattacks is typically to steal information, damage equipment, extort a ransom to regain control of the system, etc.
A cyberattack uses malicious code to breach security systems and gain unauthorized access to private data and networks. Depending on its scale and intent, cyberattacks can be classified as cyberterrorism or cyberwarfare.
Cyberattacks reveal vulnerabilities in computer systems, whether at the software or hardware level. Understanding how they work helps us take the necessary precautions to prevent them.
In this sense, we remind you that the ITD Consulting team has tools designed to prevent these occurrences. We invite you to inquire about our backup and recovery services, so you can prevent a cyberattack from affecting your company or, in case you do experience one, avoid disrupting your operations.
Types of Cyberattacks
Let’s review seven common types of cyberattacks to understand how they operate.
1. Malware
The most well-known type of cyberattack is malware. This term refers to malicious programs, including spyware, the infamous ransomware, viruses, and worms.
Malware detects vulnerabilities in a network and infects it. Usually, this process is triggered when a user selects an infected link or file, which could be sent via email, for example, leading to the installation of harmful software.
Within this category, as mentioned, is ransomware, which can paralyze your devices' functioning. Ransomware is considered the most dangerous and fastest-growing malware today.
Due to the frequency of attacks, malware is the primary threat currently. Therefore, you need to have the necessary tools to counteract them and train your employees on attack mechanisms to prevent them from being tricked.
2. Phishing
Phishing is a type of cyberattack characterized by sending communications that appear to come from a trusted source. Typically, phishing attacks occur via email.
The goal is to obtain sensitive data, such as credit card information, or to install malicious software on your device.
Again, for this attack to work, user intervention is required. Deceiving the user is one of the main tactics of cyberattacks. In this regard, you should ensure that everyone in your company is well aware of these mechanisms to avoid falling victim to them.
3. Man-in-the-middle (MitM) Attacks
Man-in-the-middle (MitM) or spying attacks occur when the hacker intercepts the traffic between two parties. This allows the hacker to read, insert, and modify the data being transmitted.
By inserting themselves in the middle of the connection, the attacker ensures that neither of the two parties notices that the link has been compromised. One of the most exploited situations for this type of cyberattack is unsecured or unencrypted Wi-Fi networks, such as public Wi-Fi.
There are several mechanisms to protect against these attacks. If you'd like more details, ITD Consulting is here to help.
4. Denial-of-Service (DoS) Attacks
Denial-of-Service (DoS) attacks are cyberattacking on a network that prevent legitimate users from accessing a service or resource. This is achieved by consuming the network’s bandwidth or overloading the resources of the attacked device, causing the network to lose connectivity.
DoS attacks occur when multiple data flows saturate network ports, overwhelming the server and making it unable to provide the expected service.
Protect yourself from these cyberattacks by properly configuring your servers with adequate prevention mechanisms. Consult ITD Consulting services to support you.
5. SQL Injection
SQL injection attacks occur when malicious code is inserted into a server that uses SQL, forcing the server to reveal information. This type of cyberattack takes advantage of vulnerabilities in systems that use SQL.
The vulnerability typically arises during the creation of a website. If the web developer is not careful, they may leave vulnerabilities that hackers can exploit for SQL injection, affecting the site’s database, which could be modified, deleted, or stolen. Keep an eye on your website’s creation process, and we recommend trusting professionals to ensure no vulnerabilities are present. At ITD Consulting, we have the right team for this.
6. Zero-Day Attacks
Zero-day attacks occur as soon as a vulnerability in a system or application is detected. These attacks execute malicious code that targets vulnerabilities often unknown to both the users and the product manufacturers.
There are several mechanisms that facilitate these attacks, such as web codes that reveal vulnerabilities in browsers, which are among the most common targets due to their widespread use.
Therefore, it is essential to secure your systems and monitor the possibility of vulnerabilities. ITD Consulting can help you by providing tailored solutions.
7. DNS Tunneling
DNS tunneling uses a DNS protocol and port 53 to communicate non-DNS traffic. This allows the attacker to send HTTP or other protocol traffic using DNS. This system can be used both legitimately and maliciously.
For instance, it can hide data to disguise outgoing traffic as DNS. In the context of a cyberattack, it means that DNS requests are manipulated to filter data from a system compromised by the attacker, including command and control calls from the breached infrastructure.
As you can see, there are various mechanisms used in current cyberattacks. Some are more famous and frequent than others, but all can potentially harm your systems and disrupt your operations. Do not neglect your cybersecurity measures.
If you are interested in learning more about cybersecurity mechanisms to keep your company safe, contact us at [email protected].
EN 
ES