Support for Palo Alto Networks Strata Cloud Manager is available now. Learn more →
0%
of firewall breaches will be caused by misconfigurations, not firewalls, according to Gartner
Why the Attack Surface Keeps Growing
Overly permissive any-any rules open lanes for lateral movement
Unused access paths linger as entry points after they stop serving a purpose
Teams have no clear view of which pathways put critical assets at risk
Manual review cannot keep pace with hybrid and multi-cloud complexity
[ How FireMon Helps ]
Reduce Your Attack Surface at Every Layer
Simulate how an attacker could move through your network. Visual attack graphs trace every reachable route across your topology and surface the hidden paths that policy complexity hides, showing exactly where to intervene to stop an attack with the least effort.
Then, model the impact of a proposed patch before deployment. Evaluate and communicate the risk of new access requests.
[ How FireMon Helps ]
Reduce Your Attack Surface at Every Layer
Simulate how an attacker could move through your network. Visual attack graphs trace every reachable route across your topology and surface the hidden paths that policy complexity hides, showing exactly where to intervene to stop an attack with the least effort.
Then, model the impact of a proposed patch before deployment. Evaluate and communicate the risk of new access requests.
Key Integration Partners
Combine real-time network configuration with raw vulnerability scan data to measure risk and visualize potential attack penetration.
Qualys
Tenable
Rapid7
0%
average reduction in policy-related vulnerabilities within months of organizations using FireMon
[ Customer Story ]
FireMon Reduces Attack Surface for Financial Institution Ahead of Digital Platform Launch
“FireMon gave us the visibility and control we needed across a firewall environment we had never been able to fully see before. The compliance reporting is exactly what our auditors need, and the cleanup work has changed the way we think about managing policy long-term.”
Head of Infrastructure
1.5M
Firewalls rules brought under control
50+
Firewalls centralized across multi-vendor environment
3
Vendors consolidated across Cisco, Fortinet, and Palo Alto
[ FAQ ]
Frequently Asked Questions
Attack surface reduction in network security is the practice of finding and removing the exploitable access that attackers use to reach critical assets. It targets overly permissive rules, unused access paths, and misaligned policy across firewalls and cloud. The goal is to shrink the number of ways an attacker can move while keeping the business running normally.
FireMon reduces the network attack surface by mapping every access path to critical assets, flagging overly permissive and unused rules, and enforcing least-privilege policy continuously. Security Manager scores each exposure by business impact, so teams remediate the highest-risk pathways first and guardrails prevent those rules from reappearing over time.
Attack surface reduction is the broader outcome of eliminating risky access everywhere it exists, across firewall and cloud policy. Microsegmentation is one technique that supports it by isolating systems into smaller zones. FireMon delivers attack surface reduction across the full multi-vendor environment and supports microsegmentation platforms such as Illumio as part of that approach.
FireMon, AlgoSec, and Tufin all manage network security policy, and each takes a different angle. AlgoSec centers on application connectivity, and Tufin centers on compliance and policy change. FireMon centers on real-time, path-based risk modeling across multi-vendor and hybrid networks, with topology mapping and continuous enforcement built to find and remove exposure as it appears.
Attack surface reduction works across multi-vendor and hybrid environments because Security Manager normalizes policy across 120+ platforms, including Check Point, Cisco, Palo Alto Networks, and Fortinet firewalls, major cloud platforms such as AWS, and leading microsegmentation tools. In multi-vendor and hybrid environments, this produces one consistent policy view across every enforcement point, with no need to move between separate vendor consoles.
Reducing the attack surface does not require business disruption when changes are validated first. FireMon models the impact of each remediation against live policy before anything is deployed, so teams remove risky access without breaking the connectivity applications depend on. Customers run methodical cleanup cycles with measurable risk reduction and no downtime.
FireMon prioritizes exposures by business impact, not by rule count. Security Manager maps each access path to the critical assets it can reach and scores the risk, so a permissive rule exposing sensitive systems ranks above low-risk clutter. Teams spend remediation effort where it reduces real exposure fastest.
[ Get Started ]
Ready to Shrink Your Attack Surface?
Identify and eliminate overly permissive rules, unused access paths, and misaligned policies across your entire hybrid network.
Up to 96% reduction in policy-related vulnerabilities
Risk-based prioritization focuses on highest-impact pathways
Continuous enforcement prevents attack surface regrowth