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Vulnerabilities Become Top Entry Point for Cyber Attackers

May 26, 2026

2 min read

Key Takeaways

Vulnerability exploitation is now the top entry point for cyber attackers.
Exploited flaws caused 31% of breaches, while credential abuse caused 13%.
Only 26% of critical vulnerabilities were fully remediated in 2025.
Median patch time rose to 43 days, up from 32 days the prior year.

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Strategic Implications

This shift may indicate that attackers are adapting to improved identity security measures, focusing on vulnerabilities as a more effective entry point. The increasing use of AI in attack chains could further accelerate the exploitation of vulnerabilities, suggesting that organizations need to reassess their patch management strategies.

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What Happened

Cyber Defenders Face Growing Pressure to Improve Patch Management

According to Verizon’s Data Breach Investigations Report, vulnerability exploitation has become the primary vector for cyber attackers, outpacing credential abuse as the most common entry point in security breaches. The report analyzed 31,000 security incidents and found that exploited flaws were the root cause of breaches in 31% of cases, while credential abuse was blamed for 13% of security failures. Experts warn that the rise of AI-assisted attacks will only increase the pressure on organizations to improve their patch management and vulnerability remediation practices, as reported by CSO Online.

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