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Insights on Attack Surface & ASM

Lion Focus articles on Attack Surface & ASM: concepts, examples and methodology to prioritize and reduce exposure across your attack surface.

Your attack surface never stops changing.

Every interval between a new exposure and its discovery widens the opportunity to exploit it.

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Sculptural attack surface map with revealed external exposure points
AllAttack Surface & ASMCyber Exposure & CTEMOffensive Security & ThreatsRisks & Vulnerabilities
External attack surface: a city of assets with Web applications, VPNs, APIs, cloud and legacy systems flagged

Attack Surface & ASM

Attack Surface Management (ASM): Seeing the Organization from an Attacker's Perspective

What Attack Surface Management is, why discovery starts from what you know and why it must be continuous: the attack surface seen from the outside in.

By Leonnes Cybersecurity | 7 October 2026

External attack surface map with an unmonitored asset outside the perimeter

Attack Surface & ASM

External attack surface: 7 blind spots that increase exposure

Explore seven blind spots that leave assets and services exposed outside the official inventory, and learn how to close the gap.

By Leonnes Cybersecurity | 1 September 2026

Sculptural attack surface map with revealed external exposure points

Attack Surface & ASM

What is an attack surface and why does it change continuously?

Understand what an attack surface is, which assets and exposures make it up, why it changes continuously, and how that can affect cyber risk.

By Leonnes Cybersecurity | 4 August 2026

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