How do cyber security systems protect against zero-day exploits?

Zero-day vulnerabilities are managed by modern security infrastructures through a combination of proactive and reactive measures. Proactive measures include conducting security assessments, penetration testing, and staying informed about emerging threats. Reactive measures involve deploying intrusion detection systems, creating patches or updates to fix vulnerabilities, and establishing incident response plans to mitigate any potential attacks. Additionally, organizations can collaborate with security vendors and researchers to stay ahead of threats and develop effective countermeasures.