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Blue Team
November 30, 202420 min read

Attack Surface Management (ASM): Complete Strategy & Implementation Guide

Master external attack surface management with this guide covering asset discovery, shadow IT detection, continuous monitoring, and risk prioritization strategies.

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Asfaleia Team
Security Consultant
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Attack Surface Management (ASM): Complete Strategy & Implementation Guide
30%
Unknown Assets
69%
Attacked via Unknown
15min
Attacker Discovery
40%
More Assets Than Known

What is ASM?

Attack Surface Management provides continuous discovery and monitoring of external digital assets. It answers: "What can attackers see?"

The Unknown Asset Problem

75% of successful attacks target unknown assets. Shadow IT, forgotten systems, and M&A remnants create blind spots attackers exploit.

ASM Process

Phase 1

Discovery

Find all external assets

Phase 2

Classification

Identify and attribute assets

Phase 3

Assessment

Evaluate vulnerabilities

Phase 4

Monitoring

Continuous surveillance

Attack Surface Components

External Assets

  • Web applications
  • APIs
  • IP addresses
  • Cloud assets

Shadow IT

  • Unauthorized cloud
  • Rogue services
  • Dev environments
  • Forgotten systems

Third-Party

  • Vendor connections
  • Partner portals
  • SaaS integrations
  • Supply chain

Continuous Monitoring

ASM provides attacker-perspective visibility with continuous discovery to find assets before attackers do.

#ASM#Attack Surface#Shadow IT#Asset Discovery#Risk Management#External Exposure

Discover Your Attack Surface

Let us help you identify and secure your external attack surface with continuous monitoring.

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