What is Cyber attack?

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A cyber-attack is a type of destructive action launched by hackers on target computer systems, networks or infrastructure using different methods to steal and modify or erase the data or information systems. Objective of cyber-attacks vary according to the type of attacks – some attacks are meant to disable the target system, while some attacks are done establish backdoor to gain entry to the target system and sometimes to turn the system offline and few to gain admin rights to gain complete control over the target system.

Why do people introduce cyberattacks?

Cybercrime has seen an exponential rise year after year – which helps hackers to gain benefits by compromising vulnerable business systems.
Attackers are always on the hunt for ransom and more than half of the cyberattacks have caused destruction of over $500,000. Cyberthreats are most often launched with undisclosed motives. Some hackers focus on stealing a specific set of data while some look to destroy the target system completely. Therefore, the severity of the attack depends on the hackers’ intention.

Types of cyber attack

Cybercriminals deploy different techniques and destruction methods to achieve a certain set of goals. They always find new ways and methods and following are the different types of cyber attacks.

Malware –

Malicious Software in short is called Malware which can be referred to as any kind of software – irrespective of its structure and function which is developed to destroy a single computer, computer network or server. Some of the different types of malware are Viruses, Computer Worms, Trojan Horses, Rootkits, Keyloggers, Ransomware and there are many more. These types of malware are curated to turn down the computer or even the entire network or even grant access to the hacker to take control over the target system from remote.

Phishing –

This is a common technique by which cybercriminals design emails to deceive target recipients to engage in harmful acts. The subject of the phishing email is drafted to trick the users to click on the link that would download the malware on to the system in the background and redirects to genuine looking malicious website which would ask for all the important credentials like bank usernames and passwords.

Denial of Service Attacks –

This is an aggressive method implemented by the hackers to terminate online activities from functioning properly. A Distributed Denial of Service Attack deploys a combination of systems usually exploited by malware which are under the control of cybercriminals, to direct the traffic towards the target systems.

Man in the Middle Attacks –

The attackers use this method to mediate between the web service that has to be accessed and the user.

Cryptojacking –

This is a specific type of attack that exploits somebody else’ system to generate cryptocurrency for you. This process is called mining. The cyber thieves will install malware on the victim’s system to enable to perform the required calculations or run the JavaScript Code and execute the same in the victim’s browser.

SQL Injection –

This is a process through which the attacker can use the vulnerability of the target system to take complete control of the database. Most of the websites take data from the users and send it to the SQL databases.

Zero-Day Exploits –

These are vulnerabilities that are yet to be resolved. Methods of exploiting such security vulnerabilities are often traded on the dark web. Sometimes these type of zero day vulnerabilities are identified by the government agencies and use them for the benefit of hacking purposes.

10 Ways to Prevent Cyber Attacks

If you are looking to implement economical ways to implement preventive measures to stay protected from Cyberattacks – following are some of the steps to be implemented to prevent Cyber attacks

  • Install an effective antivirus which has the capability to regularly update the software on all the systems that are used in the business
  • Install a firewall to filter out the suspicious programs from entering while you stay connected to the Internet.
  • Keep your Operating Systems updated with the latest patches available
  • Ensure to take instant backups of critical enterprise data which can be later retained
  • Make backup copies of important business data and information so there is no hassle when your system is compromised
  • Limit and restrict access to specific set of users to the computers and other network components.
  • Protect Wi-Fi networks with strict passwords. Ensure the Wi-Fi network at your workplace is all protected from prying hackers.
  • Ensure to provide unique user accounts to each employee.
  • Limit authority to each user/employee to access data and information to install software.
  • Ensure to change and use strong passwords on a regular basis.

Recent cyber attacks

We have encountered some recent cyber attacks in the recent times
Here are the biggest cyber attacks in recent history:

WannaCry

WannaCry took the world by storm in the recent times. It was a massive ransomware attack that spread drastically in 2017. It took control of the infected computers and locked the files and programs of the user’s hard-drives, then demand a huge ransom in bitcoins in order to decrypt the stolen and encrypted files. The ransomware exploited the vulnerability found in the Microsoft Windows by implementing the secret code created by the United States National Security Agency. The vulnerability was called the EternalBlue. Though the vulnerability was patched by Microsoft, there were many systems that had not upgraded the latest patch update which resulted in Wannacry breach.

NotPetya

Petya ransomware was yet another ransomware that came into existence in 2016 when it was circulated through phishing. The objective of the petya was to encrypt the masterboot record of the infected systems – which made it complex and challenging for the users to gain access to their own files.
In June 2017, an advanced version of petya was recreated and it started to infect the systems. It was not the same as the original and hence it was termed NotPetya; It is known to have been originated and spread through an infected Ukranian Accounting Software and spread through the same EternalBlue vulnerability that was used by WannaCry. Experts reveal that this cyberattack by NotPetya was intended to have imposed by Russian hackers against Ukraine.

Cyber attack statistics

It is vital to know about the metrics involved to understand what is going on in the gloomy world of cybercrime. The second quarter of 2018 has been found to be around 50% higher than the numbers compared to the previous years. There is a certainly a massive spike in cyber attacks through crypto-currency platforms. Perpetrators had gained a net of around $1.5 trillion in 2018. If you are concerned about phone safety, you should definitely find a way to protect your mobile phones as the mobile attacks are on a drastic rise for us to see. Security experts have found a rise in the number of malicious mobile installation packages from suspicious third-party app stores. Mobile users should be wary of third party apps and ensure that they download apps from genuine app stores.

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Related Sources:

https://cdome.comodo.com/network-security.php
https://cdome.comodo.com/security-definition.php
https://cdome.comodo.com/secure-internet-gateway.php

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