Common Types of Cyberattacks and How to Prevent Them

Malware, Phishing, Structured Query Language (SQL) injections, and Password attacks are some of the most common types of cyberattacks. These attacks have severe consequences, such as financial loss, data breach, and damage to the organization’s reputation. They (the attacks) can be prevented by encrypting data, installing a firewall, updating software, and scanning websites for vulnerabilities.

In this article, you will learn in detail about the common types of cyberattacks and ways to prevent them.

What are Cyberattacks?

A cyberattack is a deliberate effort to steal, expose, or destroy data, applications, or other assets of an individual or an organization through unauthorized access to a network, computer, or digital device.

Attackers go after different people or organizations based on their reasons and how easy they think it is to break into their systems. Here are some common targets of attackers:

• Individuals
• Businesses
• Government organizations
• Financial institutions
• Public figures and celebrities

Common Types of Cyberattacks

1.Malware

Malware (short for malicious software) refers to harmful programs designed to damage or control your device. These sneaky programs can create big problems for both individuals and businesses.

Here are other common types of cyberattacks involving malware:

• Trojan: A Trojan, like the infamous Trojan Horse from Greek mythology, is a harmless gift with a hidden surprise. It may appear as a free game or an innocent email attachment, but once opened, it can steal sensitive information or create a backdoor for future attacks, potentially causing serious disruptions or data breaches for your business.
• Rootkit: Think of a rootkit as a secret agent that hides in your device and lets hackers control it. If a company’s computers are infected with a rootkit, hackers might use it to install ransomware or steal confidential data. Rootkits are often known to disable security measures, which makes them hard to detect and fix.
• Spyware: As its name suggests, spyware operates like a silent, online spy, secretly monitoring and stealing information like credit card numbers or passwords without your knowledge. If your business or personal computer is infected with spyware, hackers could gain access to sensitive information, leading to serious security breaches and significant financial losses.

2.Ransomware

Ransomware usually sneaks in when someone visits a shady website or opens a suspicious email attachment. It takes advantage of security holes on the infected device to lock up important files like Word docs, Excel sheets, PDFs, databases, and system files. Once encrypted, these files are rendered useless, and the attacker demands a ransom to unlock them. Sometimes, they will target a critical server or try to spread the ransomware to other devices on the network before starting the encryption, hitting everything all at once.

To put more pressure on victims, attackers often threaten to sell or leak stolen data if the ransom is not paid. Lately, some ransomware gangs have even skipped the encryption part altogether, focusing only on stealing data and threatening to make it public unless they get paid.

Based on research by Check Point:

• In 2023, 1 in 10 organizations around the world was hit by attempted ransomware attacks, up 33% from 2022, when it was 1 in 13.
• On average, each organization faced over 60,000 attacks throughout the year, which is about 1,158 attacks per week.
• The retail and wholesale sectors saw a 22% increase in attacks each week compared to the previous year.

So, if you are hosting your e-commerce website, ensure you are doing it with a trusted hosting partner.

3.Denial-of-Service (DoS) and Distributed Denial-of-Service (DDoS) Attack 

A Denial-of-Service (DoS) attack attempts to shut down or disrupt the normal functioning of a target server, network, or device by overwhelming its system and other resources with illegitimate requests. This causes the target to become slow and unresponsive, leading to the system crashing.

A Distributed Denial-of-Service (DDoS) attack operates just like a DoS attack, but attackers use a large network of malware-infected machines to overwhelm the target’s system or network.

Unlike other cyberattacks that aim to gain unauthorized access to the system, DoS and DDoS attacks do not seek access. Their main aim is to interrupt service delivery or cause a hiccup in the server or network, leading to monetary loss. Generally, DoS and DDoS attackers are hired by competitors to disrupt your business.

Meanwhile, attackers can use DoS and DDoS as a window for other cyberattacks. When a system is taken offline to recover from the DoS and DDoS attack, it may be more vulnerable to other exploits.

4.Botnet Attack

Imagine you are at home, and suddenly your computer starts acting weirdly slow, sending strange emails, and even crashing. You do not know it, but your computer has become part of a botnet.

The hacker uses malicious software, called “malware,” to take over many computers without their owners knowing. Once a computer is infected, it turns into a “bot” or “zombie” and can be used to carry out various harmful tasks.

For instance, a botnet might be used to send out massive amounts of spam emails, spread viruses, or launch attacks that overwhelm websites, making them crash. The hacker controls the entire botnet from a principal place, using it to cause trouble on a large scale while the individual computers remain unaware of their role in the attack.

5.Phishing Attack

In phishing attacks, hackers create fake emails or sites to trick you into sharing sensitive information like your password or credit card pin or other sensitive details like these.

Here are some common types of phishing:

• Email phishing:It is the most common type of phishing, where attackers send mass emails pretending to be from reputable sources.
• Spear phishing:This is a targeted attack aimed at specific individuals or organizations. They often use personalized information to appear more convincing.
• Whaling: These types of attacks are aimed at high-profile targets like celebrities or public figures. Attackers use sophisticated and modern tactics in this type of cyberattack.
• Smishing and Vishing:Phishing attacks the target via SMS (smishing) or voice calls (vishing), often pretending to be customer service or tech support.

6.Password Attack

A password attack is where the attacker attempts to get an unauthorized access to your system or network by cracking your password. In this type of cyberattack, attackers systematically guess their target’s password based on their personal details, such as birthdates, names, hobbies, or pets.

Here are some types of password attacks:

• Brute-force attack:Attackers use software to guess your password. They use social media and other portals to gain access to your personal information, like your birthdate, hobbies, or pets. Then they try multiple combinations of passwords based on this information until the correct password is found.
• Dictionary Attack: This method uses a list of common passwords or words from a dictionary to guess the password of the target.
• Credential Stuffing:Attackers use lists of previously stolen usernames and passwords to gain access to other accounts. This type of password attack relies on the fact that many individuals reuse passwords across multiple sites.

7.SQL Injections Attack

Structured Query Language injection is a code injection technique where the attackers exploit vulnerabilities in websites that rely on databases. It is one of the most common web hacking techniques that can lead to unauthorized access to sensitive information, modification, or deletion of important data from the database, and shutting down the database.

Here is how a SQL Injection attack works:

• Injection of malicious code:Attackers input malicious SQL statements into a form field or URL parameter.
• Execution of code:The database processes this input as part of a SQL query, executing the malicious code.
• Data manipulation: Once executed, attackers can view, modify, or delete data, and in some cases, gain administrative access to your database.

8.Cross-site scripting

When we say a website does not “properly check” the data users submit, it means the website is not doing enough to ensure that the data being entered is safe. For instance, if a website allows users to fill out forms or leave comments but does not carefully review or filter what is being submitted, harmful code can be included. This code could be scripts designed to steal information or cause damage.

Imagine you are writing a comment on a blog. If the website does not check the comment for dangerous code before showing it to others, someone could include malicious code in their comment. When other users read that comment, the malicious code runs in their browsers, potentially causing harm like stealing their personal information. Proper checking involves filtering out any harmful code or scripts to prevent these kinds of attacks.

Website developers and administrators are primarily responsible for preventing XSS attacks by securing their code and input validation, while hosting providers support this effort by maintaining secure environments and offering security measures like SSL (Secure Sockets Layer) certificates.

9.DNS Spoofing

Domain Name System (DNS) spoofing is a type of cyberattack where the hacker modifies DNS records to redirect users to a malicious website. This can lead to users unknowingly providing sensitive information like your usernames and passwords, and details of your credit card, among others.

DNS spoofing is a popular type of cyberattack. It is popular because attackers create an exact copy of the original website, which forces users to believe that they are visiting a legitimate website. Thus, enabling attackers to conduct criminal activities under the guise of a trusted company.

10.Man-in-the-Middle (MITM) Attacks

A Man-in-the-Middle (MITM) attack is a type of cyberattack where the attacker secretly intercepts and sometimes alters the communication between two parties. The attacker positions itself between two users, networks, or devices, enabling them to eavesdrop on conversations, steal sensitive information, or inject malicious content without the knowledge of both parties.

Here are some common methods of eavesdropping:

• Wi-Fi eavesdropping: Attackers set up fake Wi-Fi that is legitimate. When users connect to the Wi-Fi, attackers eavesdrop on their conversations.
• Email Hijacking:Attackers gain control of the email and monitor or alter messages.
• Session Hijacking:Attackers steal session cookies to gain unauthorized access to a user’s session on a website.

11.Insider threat

An insider threat originates from within an organization. It typically involves someone who has authorized access to the organization’s sensitive information, such as systems and data. A current or former employee, contractor, or business partner could cause this type of cyberattack.

Here is what happens in an insider threat:

• Data breaches:Sensitive information, such as customer data, can be exposed, leading to loss of trust and potential legal consequences.
• Financial losses:Insider threats can result in significant financial damage due to theft of intellectual property, fraud, or sabotage.
• Reputational damage:A security breach can harm your organization’s reputation, making it difficult to regain customer trust.
• Operational disruption:Insider threats can disrupt your website’s operations, causing downtime and affecting your business continuity.

12.URL Interpretation

URL interpretation is often associated with altering or fabricating URLs to gain access to the target’s personal and professional data. This type of cyberattack is also referred to as URL poisoning.

Here are some common types of URL-based attacks:

• URL Manipulation: Attackers modify your website or web page’s URL to gain unauthorized access to information or perform actions they should not be able to. For example, changing a user ID in the URL to access another user’s data.
• URL Redirection: Attackers can embed malicious URLs in your website’s code, emails, or other communications. This would make users think that they are visiting a legitimate site while they are redirected to a harmful one.
• Directory Traversal: Attackers manipulate URLs to access restricted directories and files on a server. By using sequences like “../,” they can navigate to directories outside the web root folder, potentially accessing sensitive files.
• Open Redirects: An open redirect occurs when a web application accepts a user-controlled input that specifies a URL to which the user will be redirected. Attackers exploit this to redirect users to malicious sites.

Impact of URL Interpretations on Your Website:

• Data theft
• Malware distribution
• Loss of trust
• Legal implications

13.Zero-Day Exploit

A zero-day exploit is an attack where attackers exploit a previous or unaddressed security flaw to break into a system. This cyberattack is referred to as a ‘zero-day’ exploit because developers have had zero days to fix the flaw because they were unaware of its existence.

Here is how it works:

• An attacker discovers an unknown vulnerability.
• The attacker takes advantage of this vulnerability.
• The exploit is used to carry out malicious activities, such as installing malware, stealing data, or gaining unauthorized access.
• The vulnerability is eventually disclosed after the attack has occurred.
• You release a patch to fix the vulnerability and prevent future attacks.

14.Watering Hole Attack

Also known as a drive-by attack, a watering hole attack is in which attackers exploit your website’s insecurity to attack the users they wish to target. For instance, employees of a specific organization or customers of a specific website. The goal of this attack is to infect the visitors’ devices with malware or gain unauthorized access to their systems.

Here is how this type of cyberattack works:

• Attackers look for websites that their target group often visits regularly, like news sites or social media platforms.
• They find weaknesses in these websites and use them to add harmful code, sometimes using brand-new, unknown attacks.
• When the target visits the infected site, the harmful code runs, which can install malware or steal information.
• The attackers can then use the malware to take sensitive data or get deeper access into the target’s computer network.

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How to Prevent Cyberattacks

You need to take a comprehensive and multi-layered approach to address both technological and human vulnerabilities. Here are some ways to prevent cyberattacks:

1.Vulnerability Management

Attackers need access to your network to exploit your vulnerabilities. Therefore, identifying, and fixing weaknesses in your IT infrastructure is the first step to reducing potential attacks. This includes updating software, patching systems, and running vulnerability assessments.

2.Training and Awareness

Vulnerabilities are not always technology-based—human error can also lead to data breaches. Hence, you need to prioritize security awareness training. Moreover, you should regularly update training programs to reflect evolving cyberattack techniques, and use cyberattack simulations to gauge and improve employee awareness.

3.End-to-End Encryption

Encrypting your data means scrambling it so that only people with the right access can read it. Even if hackers manage to break into your system, encryption makes sure they cannot steal valuable information. This way, your data stays safe from prying eyes as it moves through your network.

4.Proactive Monitoring

It is important to always keep an eye on your system for anything unusual that might signal a cyberattack. By constantly monitoring your network, you can catch suspicious activity early. Additionally, using techniques like dividing your network into smaller parts (network segmentation) can help limit the damage if an attack does happen.

5.Incident Response Plan

Every organization should have a plan in place to respond to a cyberattack. This means knowing exactly what to do when an attack is detected. Regularly practising this plan can help reduce the damage and get everything back to normal more quickly after an attack happens.

6.Choose a Reliable Hosting Provider

One crucial step to prevent cyberattacks is picking a trustworthy hosting provider. Think of your hosting provider as the foundation for your website. A good provider offers strong security features like firewalls, regular updates, and malware scanning. These features help keep hackers out by blocking attacks and fixing weaknesses in the system before they can be exploited.

BigRock offers advanced security features, such as SSL certificates, SiteLock, and CodeGuard to safeguard your digital assets. SSL certificate ensures that your visitors’ data is safe and secure. SiteLock, on the other hand, monitors your website 24*7 for vulnerabilities and attacks. CodeGuard’s cloud backup lets you recover your website data instantly, preventing data loss during a breach.

ALSO READ: What is Cybersecurity Mesh – A Detailed Guide

Summing Up

Protecting your organization against cyberattacks requires a thorough and proactive approach. Follow our guide on common types of cyberattacks and how to prevent them to fix your system, server, or network vulnerabilities