What is a Cyber Attack?

Cyber attacks are intentional exploits of computer systems, networks and companies that depend on technology. These attacks use malicious code to change computer code, data, or logic. It leads to destructive consequences that can endanger your data and spread cyber crime such as information and identity theft. Cyber attacks are also known as Computer Network Attack (CNA).

SQL Injection

SQL Injection, also known as SQLI, is a type of attack that uses malicious code to manipulate a backend database to access information that is not intended to be displayed. This might include many items including personal customer details, user lists, or sensitive company data.

SQLI can have an adverse effect on business. A successful SQLI attack can cause the deletion of entire tables, display a list of unauthorized users, and in some cases, an attacker can gain administrative access to the database. This can be very detrimental to business. When calculating possible SQLI costs, you should consider losing customer trust if personal information such as addresses, credit card details, and telephone numbers are stolen. Although SQLI can be used to attack any SQL database, the culprit often targets websites.

Denial of Service (DDoS)

Denial of Service (DDoS) aims to shut down the network or service, making it inaccessible to the intended user. The attack reaches this mission by flooding the target with traffic or flooding it with information that triggers an accident. In both situations, DoS attacks deny legitimate users such as employees, account holders, and members of the resources or services they expect.

DDoS attacks are often targeted at the web servers of high profile organizations such as trade and government organizations, media companies, commerce and banking. Although these attacks do not result in the loss or theft of important information or other assets, they can spend a lot of money and time for victims to mitigate. DDoS is often used in combination to divert attention from other network attacks.

Brute Force

Brute Force attacks are network attacks where an attacker tries to log into a user account by systematically checking and trying all possible passwords until they find the correct one. The simplest method to attack is through the front door because you must have a way of entering. If you have the required credentials, you can get entries as you normally do without making suspicious logs, requiring entries that have not been patched, or tripping over IDS signatures. If you have system credentials, your life is even simplified because the attacker does not have this luxury.

The term brute-force means to defeat the system through repetition. When hacking passwords, brute force requires dictionary software that combines dictionary words with thousands of different variations. This is a slower and inefficient process. These attacks begin with simple letters like “a” and then move to full words like “snoop,” or “snoopy.” A brute-force dictionary attack can do 100 to 1000 attempts per minute. After a few hours or days, a brute-force attack can finally crack any password. Brute force attacks reaffirm the importance of password best practices, especially on important resources such as network switches, routers and servers.

Phishing

Phishing is a type of social engineering that is usually used to steal user data such as credit card numbers and login credentials. That happens when an attacker, disguised as a trusted individual, deceives the victim into opening a text message, e-mail, or instant message. The victim is then tricked into opening a malicious link that can cause the system to freeze as part of a ransomware attack, reveal sensitive information, or install malware. This violation can have disastrous results. For an individual, this includes identity theft, funds theft, or unauthorized purchases.

Phishing is often used to gain a foothold in government or corporate networks as part of more significant plots such as Advanced Persistent Threat (APT). In such cases, employees are compromised to get privileged access to secure data, distribute malware in a closed environment, and bypass security parameters.

Malware

Malware (Malicious Software) is a program that is designed with the aim of corrupting it by breaking into a computer system. Malware can infect many computers by logging in via email, internet downloads, or infected programs.

Malware can cause damage to the computer system and also allows data / information theft to occur. The most common cause of malware is downloading software from illegal places where malware is inserted. Malware includes viruses, worms, Trojan horses, most rootkits, spyware, dishonest adware, and other software that is dangerous and unwanted by PC users.

The website itself can sometimes be infected with malware, this can happen if a user downloads a website theme illegally, it can cause data and information on the website to burst, sometimes it can also cause the website server to go down due to suspicious activity.

Cross Site Scripting

Cross Site Scripting (XSS) is a type of injection violation where an attacker sends malicious scripts into content from a reputable website. That happens when dubious sources are allowed to attach their own code to the web application, and the malicious code is combined with dynamic content which is then sent to the victim’s browser.

Malicious code is usually sent in the form of pieces of Javascript code that are run by the target browser. Exploitation can include malicious executable scripts in many languages including Flash, HTML, Java and Ajax. XSS attacks can be very devastating, however, reducing the vulnerability that allows these attacks is relatively simple.

Trojan Horses

Trojans are malicious software programs that misrepresent themselves to appear useful. They spread by looking like routine software and persuading victims to install. Trojans are considered as one of the most dangerous types of malware, because they are often designed to steal financial information.

Drive-by Attack

Drive-by attacks are a common method of spreading malware. Cybercriminals search for insecure websites and embed malicious scripts into PHP or HTTP on one of the pages. This script can install malware on a computer that visits this website or be an IFRAME that redirects the victim’s browser to a site that is controlled by an attacker. In most cases, this script is obscured, and this makes the code complicated for security researchers to analyze. These attacks are known as drive-by because they do not require any action from the victim except visiting the compromised website. When they visit a compromised site, they are automatically and secretly infected if their computer is vulnerable to malware, especially if they have not implemented a security update for their application.

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