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Types of Security Threads – BMS NOTES

Types of Security Threads

Cybercriminals are constantly evolving their methods of assault and breaking into an organization’s system. Organizations face several security vulnerabilities that might impact their ability to conduct business as usual. Therefore, it is impossible to be absolutely certain that a company is safe from assaults or risks related to cyber security.

Security Threat Types

The following are the many security concerns that businesses face, which we will talk about in this post:

Computer infections

A virus is a piece of malicious software that may move undetected from one machine to another or from one network to another and launch destructive assaults.

It has the power to erase files, format hard drives, and contaminate or harm important data belonging to an organization.

How Do Virus Attacks Occur?

  • A virus may attack or propagate in a variety of ways, including:
  • Choosing an executable file to click
  • Installing free applications and software
  • going to a vulnerable and compromised website
  • Selecting an advertisement
  • Using USB drives and other detachable storage devices that are infected
  • launching a spam email or visiting a website
  • downloading free media players, toolbars, games, and other applications.

Trojan Horse

Trojan horses are harmful programs or codes that are created by hackers to seem like genuine software in order to enter the systems of an organization. It is intended to do harm to your data or network by deleting, altering, damaging, blocking, or doing other undesirable things.How Do Trojan Horse Attacks Occur?

An attachment to an email that seems to be an authentic official email is sent to the victim. When the victim clicks on the attached file, any malicious code therein may be immediately executed.

Under such circumstances, the victim is unaware that the attachment is a Trojan horse.

Adware

Adware is software that displays commercial and marketing-related adverts on your computer screen, including banner ads, pop-up windows or bars, and videos.

Its primary goal is to make money for its creator (Adware) by showing users various kinds of adverts on the internet.

How Do Adware Attacks Occur?

These kinds of adverts capture your information by redirecting you to an advertising website when you click on them.

By keeping an eye on your online activity and selling that information to a third party, it may also be used to steal all of your login passwords and sensitive personal information.

malware

Unwanted security dangers to companies are known as spyware. They are placed on users’ computers and secretly gather sensitive data, including credit card numbers, login passwords, and personal or company business information.

These kinds of attacks keep an eye on everything you do online, follow your login details, and surveil confidential data.

Therefore, every company or person should take precautions against spyware by downloading software from reputable sources, employing firewalls, and installing anti-virus software.

How Can Malware Be Installed?

It may be installed on your computer automatically, as a hidden component of software packages, or as conventional malware that appears as false emails, instant messaging, and advertisements.

Worm

A computer worm is a sort of malicious software or program that replicates itself from one machine inside an organization to another within the network it is linked to.

How Do Worms Proliferate?

It may proliferate without the need for human intervention, taking advantage of software vulnerabilities to steal confidential data, alter files, and install a back door that allows remote access to the system.

Attacks known as denial-of-service (Dos)

A denial-of-service attack disables a computer or network or prevents people from accessing it. Usually, it overwhelms a system with requests until regular traffic cannot be handled, depriving customers of their service.

How Does Dos Attack Operate?

It happens when a hacker restricts authorized users’ access to certain devices, computer systems, or other resources.

The attacker floods the target server with too much traffic, overwhelming it and bringing down websites, email servers, and other Internet-connected services as a result.

Phishing

Phishing is a sort of social engineering assault that aims to get private data, including credit card numbers, usernames, passwords, login credentials, and much more.

How Do Phishing Attacks Occur?

A phishing email attack involves an attacker sending a fake email to the target pretending it is from your bank, requesting personal information.

A link in the mail takes you to another unsecure website where hackers may steal your personal data.

Therefore, it is best to steer clear of, click on, or read such emails and to withhold your important information.

SQL Injection

One of the most popular online hacking methods that gives an attacker power over the back end database to alter or remove data is SQL injection.

SQL Injection Attack: How Does It Work?

This is a security flaw in the program; if the application does not thoroughly sanitize its SQL statements, an attacker may insert malicious SQL instructions to get access to the company database. Through web page input, the attacker inserts malicious code into SQL queries.

Rootkit

A rootkit is a malicious software that intrudes into a system without the user’s knowledge and installs and runs malicious code to take control of a computer or network system and provide administrator-level access.

Rootkit viruses come in a variety of forms, including kernel-level, application, firmware, and bootkit varieties.

How Is Rootkit Installed?

It may enter a computer via the sharing of infected devices or disks. Usually, it is installed by using a password that has been stolen or by secretly taking advantage of system flaws, social engineering strategies, and phishing attacks.

HARMFARE

Malware is software that is created by cybercriminals and usually consists of a program or code. Cybersecurity threats are those that target organizations with the intention of causing significant harm to their systems or gaining unauthorized access to their computers.

How Is Malware Attacked?

Malware may infect a device in a number of methods. For example, it might be sent by email as a link or file, and in order for it to work, the user must click on the link or open the file.

Trojan horses, worms, computer viruses, and spyware are examples of this kind of assault.

ransomware

One kind of security concern is ransomware, which prevents users from accessing computer systems and requires payment in bitcoin to be let back in. Ransomware assaults like WannaCry, Petya, Cerber, Locky, and CryptoLocker, among others, are the most hazardous.

How Can Malware Be Installed?

Threats of various kinds are often introduced into a computer system using the following methods:

When a malicious email attachment is downloaded and opened

Install a malicious program or programs

When a person visits a website that is vulnerable or dangerous

Select the photos or unsafe web link.

Breach of Data

When private or protected information is accessed from a system without the owner’s consent, it creates a security risk known as a data breach.

Information like credit card numbers, customer information, trade secrets, and other private or proprietary data may be included.

No-Day Attack

Applications that are vulnerable to undisclosed security flaws in computer software or applications are known as zero-day attacks. An organization doesn’t know what kinds of vulnerabilities exist in an application before launching it.

How Do Zero-Day Attacks Occur?

when the application vulnerability has not been patched, the program developers were not aware of it, or they ran out of time to address it.

The vulnerability may impact computer programs, data, or a network if the creator does not address it.

Employees of the Organization Who Are Careless

Workers provide the biggest security risk to any company because they are familiar with every aspect of it, including the locations and methods of accessing critical data. Careless workers provide a risk to an organization’s cyber security in addition to malevolent assaults.

How Does an Attack Occur?

They exchange passwords and use relatively basic passwords to help them remember them. Employees accessing dubious email attachments, clicking on links, or going to rogue websites are additional frequent issues that might infect a system with malware.

 

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