Overview

Types of Cybersecurity Threats

Types of cybersecurity threats is a classification of digital attacks targeting organizations and individuals. It covers major threat categories including malware (ransomware, spyware, trojans, etc.), phishing (including targeted attack emails), DDoS attacks (Distributed Denial of Service), SQL injection, and Cross-Site Scripting (XSS). These threats compromise the CIA triad of confidentiality, integrity, and availability, causing data breaches, business disruptions, and financial losses. In 2025, new threats such as AI-powered attacks and supply chain attacks are also on the rise.

cybersecurity information security malware phishing DDoS SQL injection XSS OWASP ransomware
code slug name description category
01 malware Malware A general term for malicious software, including viruses, worms, trojans, ransomware, and spyware. Malware Attack
02 phishing Phishing A fraudulent attack method that impersonates legitimate organizations to steal personal information and credentials. Social Engineering
03 ddos-attack DDoS Attack Distributed Denial of Service attack. Simultaneously accesses from multiple computers to stop services. Availability Attack
04 sql-injection SQL Injection An attack that exploits web application vulnerabilities to inject malicious SQL statements into databases. Injection Attack
05 xss Cross-Site Scripting (XSS) An attack that embeds malicious scripts into websites to execute in visitors' browsers. Injection Attack
06 ransomware Ransomware Malware that encrypts files and demands ransom. Remains a top threat in 2025. Malware Attack
07 zero-day-attack Zero-Day Attack An attack that exploits vulnerabilities for which no patch has been released (0-day). Advanced Attack
08 supply-chain-attack Supply Chain Attack Indirect attacks that exploit the software supply chain (third-party products or services). Advanced Attack
09 apt-attack APT Attack Advanced Persistent Threat that lurks in organizations for extended periods to steal confidential information. Advanced Attack
10 mitm-attack Man-in-the-Middle Attack (MitM) An attack that intercepts between communication parties to eavesdrop on or tamper with content. Communication Attack

A classification of major cybersecurity threats including malware, phishing, DDoS attacks, SQL injection, and XSS.