What are the different information security threats?

Information security threats can be categorized into several types, including malware (such as viruses, worms, and ransomware), phishing attacks that trick users into revealing sensitive information, and denial-of-service (DoS) attacks that disrupt services. Other threats include insider threats from employees with malicious intent or negligence, and advanced persistent threats (APTs) that involve prolonged and targeted cyberattacks. Additionally, vulnerabilities in software and hardware can be exploited by attackers to gain unauthorized access to systems and data.