Section: IT & Technology · CybersecurityDifficulty: Easy

Malware

USUK
US/ˈmælˌwɛr/UK/ˈmælˌwɛ/

Malicious software designed to disrupt, damage, or gain unauthorized access to computer systems.

Also: malicious software

Definition

Malware (malicious software) is any software intentionally designed to cause damage to a computer, server, client, or computer network. Malware types include viruses (self-replicating code that attaches to programs), trojans (disguised as legitimate software), ransomware (encrypts files for ransom), spyware (covertly monitors activity), adware (displays unwanted ads), and worms (self-propagating network malware). Malware is typically delivered via phishing emails, malicious downloads, or compromised websites.

Example

After clicking an email attachment, ransomware encrypted all of the hospital's patient files, demanding a large Bitcoin payment for the decryption key.

Usage Examples

  1. 1

    The team applied malware best practices to improve their cybersecurity outcomes significantly.

  2. 2

    Understanding malware is essential for anyone building a career in IT & Technology.

When & How to Use

Use 'Malware' when working in Cybersecurity contexts where malware (malicious software) is any software intentionally designed to cause damage to a computer, server, client, or computer network.

  • Applying malware principles during a cybersecurity project or initiative
  • Explaining malware to a junior team member or stakeholder unfamiliar with IT & Technology
  • Evaluating options or proposals using malware as a decision-making criterion

Etymology & Origin

The term 'Malware' derives from professional usage and entered IT & Technology professional usage as the field formalised in the 20th century.

History & Evolution

The concept of malware has evolved alongside IT & Technology. Early practitioners relied on informal methods; structured approaches emerged with the professionalisation of cybersecurity in the mid-20th century. Today, malware is a standard part of IT & Technology practice globally.

Synonyms

  • malicious software
  • harmful program
  • cyber threat
  • malicious code

Antonyms / Opposites

  • legitimate software
  • trusted application

Images

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Video

  • ransomware
  • virus
  • trojan
  • antivirus

Dictionary Entry

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