Cyber Exposure Manager vs Mandiant Attack Surface Management: Side-by-Side Comparison (2026)

Short answer

Mid-market and enterprise security teams drowning in asset discovery backlogs should start with Galileo Security because it actually maps forgotten and shadow IT assets before they become breach vectors. The platform covers all four NIST CSF 2.0 foundations,asset management, risk assessment, supply chain visibility, and infrastructure resilience,which means you're not bolting together five tools to get operational context around what you own. Skip this if your organization needs deep post-breach forensics or threat hunting; Galileo is built to shrink your attack surface, not investigate what already happened. Mid-market and enterprise security teams need continuous visibility into internet-facing assets before attackers do, and Mandiant Attack Surface Management delivers automated discovery and monitoring at scale with multicloud integration that actually works. The tool maps your external footprint daily and flags exposures without requiring manual asset feeds, which is where most ASM tools fail in hybrid environments. Skip this if you're looking for remediation workflows or patch management; Mandiant finds the problem and hands it off to you.