Attack Surface Management

You cannot secure what you don't know exists — and in most organizations, the list of "what exists" is longer and messier than anyone in security actually knows. A staging environment spun up two years ago and forgotten. A subdomain pointed at a decommissioned service. A marketing microsite nobody in engineering remembers approving. Attackers scan for exactly these forgotten assets, because they're the ones nobody is watching.

Why This Has Become a Priority

Attack surface management is one of the fastest-growing categories in cybersecurity, driven by the same forces that made it necessary: cloud adoption, digital transformation, and the sheer number of subdomains, APIs, and third-party integrations a modern business accumulates without a single system of record tracking all of them.

What We Do

• Continuous asset discovery — subdomains, IP ranges, cloud resources, and exposed services mapped on an ongoing basis, not a one-time inventory that goes stale within weeks.
• Shadow IT detection — assets provisioned outside your official processes, from forgotten marketing landing pages to unsanctioned SaaS integrations.
• Exposure monitoring — open ports, exposed admin panels, outdated software versions, and expired or misconfigured TLS certificates flagged as soon as they appear.
• Change detection — alerts when your external footprint changes, so a newly exposed asset is caught in hours, not discovered months later during the next audit.
• Risk prioritization — assets ranked by actual exploitability and business impact, not just raw count, so your team fixes what matters first.

The Foundation for Everything Else

Attack Surface Management is the discovery layer underneath Web App Security and Cloud Security — you can't continuously test what you haven't discovered. As new assets appear in your external footprint, they're automatically brought into scope for the rest of your Alastor InfoSec coverage instead of waiting for someone to remember to add them manually.

Who Needs This

Any organization with more than a handful of domains, cloud accounts, or business units has an attack surface larger than its security team's mental model of it. This is especially true after mergers, acquisitions, or rapid scaling, when asset sprawl accelerates faster than documentation ever keeps up.

Talk to our team about mapping your real external attack surface — including the parts you've forgotten about.