The Zero-Day Scramble is Avoidable: A Guide to Attack Surface Reduction

This article explains how proactive attack surface reduction can help security teams avoid the chaotic scramble that follows zero-day vulnerability disclosures.

• •Time-to-exploit for critical vulnerabilities has shrunk to 24-48 hours, with projections that it will reach minutes by 2028.
• •The ToolShell zero-day in Microsoft SharePoint demonstrated the risk: thousands of publicly accessible SharePoint instances were found despite SharePoint not needing to be internet-facing.
• •Traditional vulnerability scanners classify exposed services as "informational" findings, causing real exposure risks to be overlooked.
• •Effective attack surface reduction requires three elements: asset discovery (including shadow IT via cloud/DNS integrations and subdomain enumeration), treating exposure itself as a risk category with assigned severity, and continuous daily port scanning.