76% of organizations have been hit by a cyberattack that started from an asset they didn’t know they owned, per Enterprise Strategy Group. A subdomain a contractor spun up in 2019. A staging API that never got decommissioned. A SaaS dashboard pointing at a forgotten S3 bucket. Attackers find these faster than your team does because they constantly scan public IP ranges and subdomains looking for exposed assets to exploit. EASM flips that asymmetry.
The gap most EASM tools leave open: they show you what’s exposed, not what’s already been stolen. Credential abuse remains the top initial access vector. With stolen passwords or session tokens, attackers don’t need to exploit an asset at all. They just log in. Pairing EASM with dark web monitoring closes that gap.
Traditional vulnerability scanners only check assets you already know about. EASM flips the approach. It starts with your domain and works outward, finding everything connected to your organization from the attacker’s perspective.
Trusted by enterprise security teams
What is External Attack Surface Management?
Why You Need External Attack Surface Management
Find shadow IT before attackers do
Cloud services and remote work create new internet-facing assets faster than most teams can track. Attackers constantly scan for forgotten dev servers and misconfigured storage. EASM catches them first.
Close the credential gap EASM misses
EASM finds exposed assets. Breachsense finds exposed access. With stolen credentials or session tokens, attackers don’t need a vulnerability. They just log in. You’ll get both views in one platform.
Watch your supply chain too
When your vendors get breached, your data ends up in their dump. Full-text search across leaked files from ransomware attacks surface mentions of your organization in third-party breached data.
How Does Breachsense EASM Work?
Map Your Attack Surface
Discover Exposed Assets
Detect Stolen Credentials
Shut Down Exposed Access
External Attack Surface Management Tools FAQ
An EASM tool continuously discovers and monitors all your internet-facing assets that attackers could exploit. It finds forgotten servers, shadow IT, and misconfigured cloud resources. The tool maps these automatically and prioritizes what to fix first. For complete visibility, combine EASM with dark web monitoring to detect stolen credentials from those assets.
It depends on your environment. Microsoft Defender EASM works best for Azure-heavy organizations. Cortex Xpanse suits large enterprises needing broad coverage. CyCognito excels at zero-input discovery. Wiz dominates cloud-native environments. For EASM combined with credential exposure intelligence, Breachsense adds dark web monitoring that other tools don’t offer. See our head-to-head comparison of 13 attack surface management platforms for evaluation criteria and feature-by-feature breakdown.
ASM covers all attack surfaces including internal assets behind your firewall. EASM focuses specifically on external, internet-facing assets visible to attackers. EASM shows you what attackers see from outside your network. Most organizations start with EASM since external assets face the highest risk from opportunistic scanning and automated exploitation.
Enterprise EASM platforms typically run $50,000 to $500,000+ annually depending on asset count and features. Mid-market solutions start around $10,000 to $50,000. Pricing usually scales with the number of assets monitored or domains tracked. Some vendors like Microsoft bundle EASM with broader security platform licensing.
Your internal attack surface includes assets within your corporate network that attackers target after breaching the perimeter, like servers and databases. Your external attack surface includes internet-facing assets visible to anyone online, such as websites and cloud services. External attack surface management focuses on reducing vulnerabilities that outside threats can exploit, while internal security secures assets from lateral movement after initial access.
You can’t protect what you don’t know exists. With cloud services and remote work, you’re creating new digital assets faster than ever and often losing track of them. Attackers constantly scan for forgotten assets like old dev servers and misconfigured cloud storage. Credential abuse remains the top initial access vector according to Verizon’s 2025 DBIR. Attack surface management helps you find those exposed assets before attackers do.