This page contains a comprehensive list of terms related to cybersecurity and IT that start with the letter V. From virus and vulnerability to VPN and virtualization, this list covers the most essential terms in the industry.
A computer virus is a type of malicious software that is designed to spread from one computer to another, and has the ability to self-replicate.
It can cause damage to the computer system by corrupting files, stealing personal information, or disrupting normal computer operations.
It can be spread through email attachments, infected websites, or infected software.
A vulnerability is a weakness in a system that can be exploited by attackers to gain unauthorized access to the system or to perform other malicious actions.
Vulnerabilities can exist in software, hardware, processes or network configurations.
They can be discovered by security researchers, or by attackers who exploit them for their own gain.
Virtual Private Network (VPN)
A Virtual Private Network (VPN) is a technology that allows users to create a secure and encrypted connection between their computer or mobile device and a private network over the internet.
It provides a secure way for remote workers to access company resources, and for individuals to browse the internet anonymously.
Virtualization is the process of creating a virtual version of a computer system, including its hardware, operating system, and applications.
It allows multiple virtual machines to run on a single physical machine, and enables users to access different operating systems and applications without the need for multiple physical machines.
Voice over Internet Protocol (VoIP)
Voice over Internet Protocol (VoIP) is a technology that allows users to make voice calls over the internet.
It uses the internet to transmit voice data in packets, rather than through traditional telephone lines.
VoIP is used by businesses and individuals for cost-effective communication and collaboration.
Virtual Machine (VM)
A virtual machine (VM) is a software-based emulation of a computer system.
It allows users to run multiple operating systems on a single physical machine, and to allocate resources such as memory and processing power to each virtual machine as needed.
VMs are commonly used in cloud computing and for testing software.
A virus signature is a unique pattern of code that identifies a specific virus or malware.
Virus signatures are used by antivirus software to detect and remove known threats from computer systems.
VLAN (Virtual Local Area Network)
A Virtual Local Area Network (VLAN) is a logical network that groups devices together based on their function or location, rather than their physical connections.
VLANs allow network administrators to segment network traffic and improve network performance, security, and management.
A Vulnerability Assessment is the process of identifying and evaluating vulnerabilities in a system or network to determine the likelihood of an attack.
The goal of a vulnerability assessment is to identify security weaknesses that an attacker could exploit, prioritize them based on risk, and recommend appropriate measures to mitigate those risks.
A Virus Scanner is a program that scans files and folders on a computer system for viruses and other malware.
Virus scanners use a database of known virus signatures and heuristics to detect malicious code in files and to remove or quarantine infected files.
A Virtual Firewall is a firewall implemented as software on a virtual machine or cloud instance rather than as a physical appliance.
Virtual firewalls provide the same security capabilities as physical firewalls and are often used in cloud environments to protect virtual networks.
Voice Biometrics is a security technology that uses voiceprint analysis to identify individuals.
Voice biometric systems capture and analyze the unique physical and behavioral characteristics of a person’s voice to confirm their identity.
Vulnerability Scanning is the process of identifying vulnerabilities in a system or network using automated tools.
Vulnerability scanners scan for known vulnerabilities in software and operating systems and generate reports that list the vulnerabilities and recommended actions to remediate them.
A VPN Concentrator is a device that provides secure remote access to a private network by creating and managing VPN connections.
VPN concentrators can handle multiple VPN connections simultaneously and provide encryption and authentication services.
Virtual Desktop Infrastructure (VDI)
Virtual Desktop Infrastructure (VDI) is a technology that allows multiple virtual desktops to run on a single physical machine.
VDI enables users to access virtual desktops and applications from anywhere, on any device, while maintaining security and control over sensitive data.
Vulnerability Exploitation is the process of taking advantage of a vulnerability in a system or network to gain unauthorized access, steal data, or disrupt operations.
Attackers use various tools and techniques to exploit vulnerabilities, including malware, social engineering, and network scanning.
Virtual Patching is a technique that involves the use of security policies and rule sets to prevent vulnerabilities from being exploited in a software system or application.
Rather than waiting for a vendor to release an official patch for a vulnerability, virtual patching provides an immediate temporary solution to protect against potential threats.
Voice Phishing (Vishing)
Voice Phishing or Vishing is a type of phishing attack that is conducted through voice communication channels, such as phone calls or VoIP calls.
The attacker typically poses as a trusted individual or organization and attempts to persuade the victim to reveal sensitive information, such as login credentials or financial details.
Virtual Private Cloud (VPC)
A Virtual Private Cloud or VPC is a cloud computing service that allows users to create isolated virtual networks within a public cloud environment.
VPCs provide enhanced security and control over network configurations and allow users to run their applications and services in a private, dedicated environment.
Virtualization Sprawl is a phenomenon that occurs when virtual machines (VMs) are created and deployed without proper management and oversight.
This can lead to an uncontrolled proliferation of VMs across an organization’s infrastructure.
This results in wasted resources, increased maintenance costs, and potential security risks.
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