What Is a CISO?

The frequency, complexity, and scope of cyber threats keep increasing rapidly. In 2025, enterprises face sophisticated phishing attacks, AI-powered mass cyberattacks, dangers from foreign government-backed hackers, and growing vulnerabilities in Internet of Things devices. There were more than 2,300 ransomware attacks on American businesses in just the first six months of 2024, including the devastating … What Is a CISO?