With the development of technology, threats to privacy, security and stability of information systems are increasing. Hackers use various types of network attacks, mainly to extort data. Gaining access to computer systems and networks by inappropriate individuals is a real threat to today’s world. In the following post, we will introduce and thoroughly characterize the most common types of hacking attacks, and try to explain how to effectively prevent them. We encourage you to read on!
Hakerskie ataki phishingowe
Phishing attacks are among the most popular forms of hacking intrusions. Why? Because they benefit cybercriminals the most and can be executed on a massive scale. These types of network attacks often focus on financial gain by, among other things, phishing for credit card numbers, login credentials and passwords for logging into a banking application, or other data enabling various types of transactions.
Phishing hacking attacks often use social engineering and manipulation. Cybercriminals create fake websites and send messages that look seemingly authentic, in which they try to convince victims to give them their data. In addition to opening a gateway for making payments, this information also allows them to access accounts on all kinds of platforms and use them for various purposes. In this way, sensitive data is also stolen, giving competitive advantages in many industries.
Installation of malware
Although activities using malware are theoretically categorized as a different type of network attack, they can be linked directly to phishing. How. Cybercriminals often send messages containing links or attachments, the downloading of which results in the automatic installation of malware on a computer. Many types of hacking attacks can be distinguished in this regard. Among the most popular are viruses, which spread and link to further files or programs.
Trojans, which impersonate other programs and collect sensitive information while running in the background, are another type of such attacks. Ransomware, on the other hand, is one of the most popular examples of malware that blocks a user’s access to a computer system and then demands a ransom to restore it to its previous state. These types of hacking attacks are not just carried out online – the malware can be spread using a portable device, such as a flash drive.
How to avoid hacking attacks?
The types of network attacks outlined above come about largely through inattention. Therefore, it is extremely important to take steps to increase network security and expand knowledge in this area. The most important steps that can be taken to prevent these types of hacking attacks are, first and foremost, regular software updates, as this process involves improving security. You should also avoid clicking on suspicious links and opening attachments from unknown sources.
It is also particularly important to use strong passwords and multi-step authentication. Then, even if a security breach is attempted, the need to confirm login, which is most often done by entering a code received on a phone number or email address, can stop a cybercriminal. Being aware of different types of hacking attacks and being cautious on the Internet often helps avoid intrusions of this type.
Difficult to predict types of network attacks
While the previously mentioned types of network attacks can largely be curbed by raising awareness among Internet users and having them take specific actions, some cybercriminal actions cannot be easily stopped. Zero-day attacks are a case in point. What do they consist of? Hackers exploit security vulnerabilities that software providers are not yet aware of. For this reason, it is important to regularly update the system to fix the flaws.
These types of network attacks are, unfortunately, extremely difficult to detect and have a high success rate. This is because cybercriminals often take advantage of the aforementioned flaws over a long period of time, without the knowledge of the users of the hardware or software in question. During this time, phishing, taking remote control of the system, installing malware or conducting other malicious activities can occur.
Types of mass-market hacking attacks
The described types of network attacks most often target individual users. However, we can distinguish such types of cybercriminal activities that immediately target entire groups of computers. Such types of hacking attacks are DDoS intrusions. What do they consist of? They mainly focus on flooding the network with a large number of requests rubbing in from multiple sources, resulting in overloading, disabling services and thus preventing other users from gaining access.
This type of network attack is most often distributed in nature, which makes it very difficult to identify cybercriminals and stop their ongoing activities. The consequences of this type of action are not only problems with accessibility to the site in question, which can expose companies to financial and reputational losses. This is because these activities can only be a cover-up and designed to divert attention from, for example, the data theft that is going on at the time.
Network attacks using data analysis
In addition to phishing for private data, it is also possible to launch a hacking attack that intercepts, among other things, information about IP addresses, passwords or transferred files. These activities are referred to as sniffing. Most often, such attacks are carried out using special tools that allow cybercriminals to intercept and analyze network traffic. Then not only confidential private data, but also those performing authentication functions are in danger.
Such network attacks can be avoided. What measures should be taken to do so? It is worth paying attention to the aspect of data encryption. For example, the use of HTTPS-encrypted protocols prevents data from being read by a sniffer. The same is true of the use of firewalls and the use of private VPNs – these measures effectively limit the possibility of sniffing. Avoiding public Wi-Fi networks can also be helpful in preventing the occurrence of this type of network attack.
Manipulation techniques of hacking attacks
Types of hacking attacks that use social engineering primarily include phishing. However, spoofing can also use a similar action. Its consequences are, unfortunately, often much more serious. There are several types of spoofing. One of them can use precisely the techniques known from phishing attacks, such as sending malicious emails. In this case, however, email server addresses are most often modified, making it appear that the email comes from a well-known person or company.
IP spoofing, which involves manipulating an IP address, is also prominent among this type of network attack. This action is used to hide the true source of the attack and mislead security systems. To be able to intercept or modify network traffic between two devices, ARP spoofing is in turn used. The ARP table is then forged in order to associate a fake MAC address with an IP address from another computer on the local network.
Hacking attacks seeking to crack passwords
Some hacking attacks focus only on reading the password to access the most diverse types of sites. What we mean here is, first of all, operations during which all possible combinations of characters are tested using enormous computing power. Both a single computer and their entire network can be used to carry out this type of operation. A popular technique here is the dictionary attack, using ready-made databases containing the most popular character combinations created by users.
The use of unique, long, strong passwords makes it much more difficult to carry out this type of hacking attack, as the time-consumption of the entire process is significantly increased in this case. Sequences containing special characters, numbers, and lowercase and uppercase letters at the same time pose an additional challenge for cybercriminals, so, it is worth taking care of the proper length and strength of your passwords. Multi-step authentication, on the other hand, provides additional security, even if the access code is cracked.
Risk of eavesdropping
Man-in-the-middle is a type of hacking attack in which cybercriminals eavesdrop on or manipulate communications between two parties. In reality, the crooks are between the two or impersonate one of them. In this way, they control the flow of information. Hackers also have the ability to modify information on the fly, i.e. they can change the content of messages, add or remove certain information, and even install malware in addition.
To protect against such network attacks, SSL and TLS certificates should be verified, as hackers often use fake ones. Properly secured protocols ensure the confidentiality of communication and its authentication. This type of attack can unfortunately be difficult to detect, so it is worth remembering all the precautions mentioned so far when using the Internet on a daily basis.
Illegal access to any computer
A type of network attack in which a cybercriminal executes his own code remotely on another device is Remote Code Execution. It allows a hacker to take control of a particular application or an entire system, which can result in data theft, running malware, privilege escalation or system content manipulation, among other things. Hackers to carry out this type of attack often exploit flaws related to programming errors and other security vulnerabilities.
The flaw found is used to insert their own code and thus obtain the ability to perform arbitrary actions on the system. The spectrum of actions in the case of such an attack is really wide and can lead to serious consequences. In this situation, once again, regular software updates play an extremely important role. It is also worthwhile to conduct security audits of systems and applications and limit access privileges to them, as well as monitor suspicious activity and logins.
How to prevent hacking attacks?
Different types of hacking attacks can affect any of us. The examples presented above are only the most common forms of them. In addition to following the basic rules of online security and remaining vigilant and cautious, it’s worthwhile to implement additional measures that don’t cost us much time or effort, but can realistically translate into making it harder for cybercriminals to access our data. One such activity that everyone should perform on a regular basis is updating software. This is because it carries with it all sorts of security patches, which allows us to avoid many types of network attacks.
Following other recommendations, such as creating strong passwords, using multi-step authentication and firewalls further increases the security level of a given device and the data stored on it. No single method is 100% foolproof, however, the listed practices realistically increase protection against many types of hacking attacks.