What is a Cyber Attack?

What is a Cyber Attack?

A cyber attack is an attempt to deactivate computers, steal data, or use a compromised computer system to launch further attacks. Cyber criminals use a variety of methods to launch a cyber attack that includes malware, phishing, ransomware, a man-in-the-middle attack, or other methods. 

Cybercrime is on the rise every year as people try to take advantage of weak business systems. Attackers usually seek redemption: 53 percent of cyber attacks result in damage of $ 500,000 or more. Cyber ​​threats can also be triggered with a secret motive. Some attackers see the destruction of systems and data as a form of “hacktivism.”

What Do Cyber Attacks Target?

Cyber ​​attacks target a resource (physical or logical) that has one or more vulnerabilities that could be exploited. The attack may compromise the confidentiality, integrity, or availability of the resource.

For some cyber attacks, damage, disclosure, or resource control may exceed previously identified vulnerabilities, including access to Wi-Fi networks, social media, operating systems, or sensitive information from an organization, such as a credit card or bank account numbers.

Such more complex cyber attacks can bypass firewalls and VPNs because they hide behind legitimate computer processes. It is also difficult for law enforcement authorities to track down responsible cybercriminals.

Types of Cyber Attacks

Although there are thousands of known variants of cyber attacks, here are the 6 most common cyber attacks skilled by organizations on daily basis.

Ransomware

Ransomware is malware that uses encryption to gain access to resources (such as user files), often to force a victim to pay a ransom. Once the system is infected, the files can no longer be encrypted and the victim must pay a ransom to unlock the encrypted resources or use backups to restore them. 

Sometimes ransomware can be used to attack multiple sides by denying access to multiple computers or a central server that is necessary for business operations.

Malware

Malware is a type of application that can perform various malicious tasks. Some types of malware are designed to provide uninterrupted access to the network, others are designed to spy on users to obtain credentials or other valuable data, while others are intended only to interfere.

Malware can be used for a variety of purposes, from stealing information through damaging or altering web content to permanently damaging a computer system.

DoS and DDoS Attacks

A Denial-of-Service (DoS) attack is designed to overload system resources to the point where it can no longer respond to legitimate countermeasures. A distributed denial-of-service (DDoS) attack is similar in that it also attempts to reduce system resources. A DDoS attack is initiated by a wide variety of hosts that are affected by attacker-controlled malware. 

These attacks are called “denial of service” because the victim’s site is unable to provide services to those seeking access.

SQL Injection 

SQL databases use SQL statements to query data, and these statements are usually executed using an HTML form on a Web page. If the database access permissions are not set correctly, an attacker could use an HTML form to perform queries that create, read, modify, or delete data stored in the database.

This occurs when an attacker enters malicious code on a server with a server request language (SQL) that forces the server to provide protected information. 

MitM Attacks

Types of Man-in-the-Middle (MITM) cyber-attacks are targeted at cyber-security breaches that allow an attacker to eavesdrop on data sent back and forth between two people, a network, or a computer. This is called a “man in the middle” attack because the attacker stands “in the middle” or between the two sides trying to communicate.  The attacker saw the interaction between the two sides.

 During the MITM attack, both parties felt that they were speaking as usual. However, they do not know that the person who sent the message illegally modified the message or accessed it before reaching its destination.

Phishing

A phishing attack occurs when a malicious attacker sends e-mails that appear to come from a trusted, legitimate source in an attempt to obtain sensitive information from a target. The name “phishing” refers to the fact that attackers “hunt” access or sensitive information and lure an unsuspecting user to an emotional hook and a reliable identity.

 As part of a phishing message, attackers often send links to malicious websites, ask users to download malicious software, or immediately request sensitive information via e-mail, text systems, messaging, or social media platforms.

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