External Attack Surface Management (EASM)
As you read this, a forgotten server, a test subdomain or an open remote access port may be exposed on the internet, and the antivirus sees nothing, because its defense is your network from within, not the surface your company shows the world from the outside.
EASM is external attack surface management: Zamak Technologies discovers what you expose, prioritizes what is actually exploitable, watches continuously and drives the fix alongside your team, so you see your company the way the attacker sees it.
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Store · Threat Intelligence (External Surface)
The attacker already has a complete map of your company. You have never seen it.
Before breaking into anything, the criminal does what your company rarely does: he lists everything you left exposed on the internet. He finds the server from an old campaign no one turned off, the test subdomain a developer published to make it work and forgot online, the remote access port left open to the whole world, the certificate that expired. Each of these is a door, and you cannot lock the door you do not know exists. While your team takes care of what is in the inventory, the attack comes in through what is not. The question is no longer whether your company has a forgotten exposure. It is who will find it first: you or him.
The exploitation of a vulnerability in an exposed asset already accounts for 20% of breaches as an entry point, a 34% rise in a single year, according to the 2025 Verizon Data Breach Investigations Report.
The fastest-growing target is edge devices and VPNs exposed to the internet: attacks through them almost octupled in a year, and only about half of those flaws were fixed throughout the year, taking a median of 32 days (Verizon DBIR 2025).
Seeing your own company from the outside is no longer optional: Gartner, the firm that defined the EASM category, projected that 70% of organizations would use external attack surface management tools by 2025, up from less than 10% in 2021.
EASM is the service that hands you back the map of your company the attacker already has: it discovers what you expose on the internet, prioritizes what is actually exploitable and watches it continuously. Zamak Technologies curates that inventory, points out what to fix first and drives the fix alongside your team.
How your company gets exposed without knowing
The doors that bring companies down are almost never the ones IT is watching.
See four common ways a company ends up with an asset exposed on the internet without anyone noticing, and why each one is an open door waiting to be found. None of them depends on the size of your company: it is enough to have a presence on the internet, and every company has more than it imagines.
A forgotten server from an old campaign is still online, with outdated software.
A promotion, an event site or a temporary system went live, did its job and was never turned off. Its software froze in time and piled up known flaws. No one updates it, because no one remembers it exists. To the attacker scanning the internet, it is the perfect target: a door with a lock that has already been picked in thousands of other places, and that leads straight into your network. Finding it before he does is what closes that door.
A test environment was published to make it work and was never taken offline.
A developer puts up a test copy of the system on a subdomain to validate something, often with real data and a default password, and leaves it open to the internet just to move faster. The task ends, but the environment stays. It appears in no official inventory, no one monitors it, and it exposes to the whole world exactly what should be locked. It is the kind of asset only someone looking from the outside, like the attacker, can see.
A remote access port was left open to the entire internet, not just to the team.
A remote access, an admin panel or a database that should stay restricted to your network was exposed, out of haste or a misconfiguration, to anyone on the internet. It is the fastest-growing vector: attacks entering through exposed edge devices and VPNs almost octupled in a year. The criminal needs nothing sophisticated; he tries passwords in bulk or exploits a known flaw, and walks in through the door left unlocked facing the street.
A certificate expired or a cloud asset was misconfigured and started to leak.
A security certificate expires and the browser starts warning your customers that your site is unsafe, driving away those who trusted you. Or a cloud storage space, created by a department without telling IT, goes public and exposes files that should be private. These are silent failures: they do not bring anything down immediately, but they signal to the attacker a poorly kept target and, often, already hand over the data for free. Seeing them from the outside is what avoids finding out the hard way.
All of these assets have something in common: they live on the edge between your company and the internet, outside what your team monitors from within, and your firewall and your antivirus do not see them because they do not know they exist. Seeing your entire external surface, from the outside and continuously, is what EASM adds to your defenses.
What EASM is
It is not scanning your network from within. It is seeing your company from the outside, the way the attacker sees it.
EASM (External Attack Surface Management) is the continuous discipline of discovering, mapping and monitoring everything your company exposes to the internet, and ranking each exposure by real risk, so it is fixed before it is exploited. The difference is in the point of view: it is not an internal scan of your network, done from within and with credentials; it is the OUTSIDE view, of what anyone on the internet can reach and probe with no access at all. Zamak operates that discovery, curates the inventory, prioritizes and is your point of contact, and drives the fix alongside your team.
Discovers what you expose without knowing
Starting only from your company's name, EASM rebuilds the complete map of what you have on the internet: domains, subdomains, addresses, services and ports, certificates and cloud assets, the way an attacker would put it together. The most valuable part is the assets no one remembers creating, the ones in no official inventory, because that is exactly where the attack tends to come in.
Prioritizes by real risk, not by volume
A list of thousands of findings helps no one: it paralyzes. Each exposure found receives a weight for the risk of actually being used in an attack, and your team gets a short, ordered queue, from what needs to be closed first to what can wait. It is what turns the map into action and makes the fixing effort land where it protects the most.
Watches continuously and warns when something changes
Your external surface changes every week: a new cloud service, a subdomain for a campaign, an integration. A snapshot of a single day ages fast. EASM rescans continuously and alerts when a new asset appears exposed or when a known one changes state, so the freshly opened hole does not stay online for months with no one seeing it. No discovery finds every asset that exists, but seeing your surface from the outside and without pause is what comes closest to it.
EASM does not replace the firewall and the antivirus, which defend from within, nor the pentest, which goes deep on a target on an agreed day: it gives the outside view, continuous and complete, of what is exposed, and points out what to fix first. Closing each door is your IT team's job with managed cybersecurity; EASM is the map that says where it is and how much it matters.
What is included
The map of your external surface and the management that turns it into action, together
Zamak discovers and maps what your company exposes, prioritizes by real risk, watches without stopping and drives the fix alongside your team. You gain the attacker's view and a clear queue of what to do, without building a discovery operation of your own.
The complete map of what you expose
The discovery and inventory of your entire external attack surface.
- Discovery of domains, subdomains and internet addresses tied to your company, including the forgotten ones
- Identification of exposed services and ports, and of what is open to the internet when it should be restricted
- Check of expired or weak certificates and of outdated software versions visible from the outside
- Detection of cloud assets and forgotten test environments, created without central IT knowing
- Classification of each asset between known and unknown, to separate the official inventory from external shadow
- The entire surface presented the way the attacker sees it, from the outside, with no agent and no access to your network
Prioritization and management by Zamak
The layer that turns the map into a queue of what to fix and drives it alongside your team.
- Prioritization of each exposure by the real risk of being exploited, so your team tackles what matters first
- A curated inventory kept up to date, not a one-off report that ages in a drawer
- Continuous monitoring with an alert when a new exposure appears or a known one changes state
- A report under the Zamak brand of your external surface, ready for the board, the audit and the insurance
- A fix recommendation for each exposure and driving of the remediation alongside your team, never in its place
- A single point of contact to handle each finding and size the coverage by your real surface
Inside the service
How your company is seen from the outside, and what that reveals
For those who want the detail: this is how Zamak rebuilds your external attack surface and keeps it watched, from the first mapping to the alert on every change.
Discovery from the outside in, with no agent and no access
The discovery starts only from your company's name and domains and rebuilds the footprint the way an attacker would, without installing anything on your network and without asking for any credential. It is exactly the same view any criminal can already build about you; the difference is that, here, it becomes yours, and in time to act.
Known assets and the ones in the shadow
The mapping reveals what central IT never cataloged: campaign subdomains, test environments, cloud services created by a department without notice, vendor systems tied to your name. These assets in the shadow, outside the official inventory, are where most of the risk hides, because they are under no watch and no one knows they need care.
Exposed ports, services and configurations
EASM identifies what is open to the entire internet when it should be restricted: remote accesses, admin panels, databases, integrations. It is the fastest-growing vector, attacks through exposed edge devices and VPNs almost octupled in a year, and it is exactly what an internal scan, done from within, tends not to see the way the outside world sees it.
Certificates and exposure hygiene
Expired or weak certificates, outdated software versions visible from the outside, and configurations that hand over too much information to whoever probes: all of it is an invitation to the attacker and, sometimes, already a leak. EASM sees these silent signs of neglect before they become the next headline or the next browser warning that drives your customers away.
Prioritization by real exploitability
Each finding receives a weight for the concrete risk of being used in an attack, not a generic score. What is actually reachable and dangerous rises to the top of the queue; the noise, what looks scary on paper but is not exploitable, sinks. This way your team spends the fixing hours where they reduce the most risk, instead of drowning in an endless report.
Continuous monitoring and reporting under your brand
The surface is rescanned continuously, and every relevant change becomes an alert. The follow-up arrives under the Zamak brand, ready for the board, the audit and the insurance. Behind it, the discovery and the analysis that support the inventory come from internationally recognized attack surface intelligence, which gives depth to the map and authority to what you take to leadership.
The intelligence behind the service has operated since 2012, is a member of FIRST (the international forum of incident response teams), contributes to the Verizon Data Breach Investigations Report, protects over 500 organizations worldwide and runs with 99.99% uptime, 24 hours a day.
The discovery and the analysis run without stopping; Zamak curates the inventory, prioritizes, alerts when something changes and drives the fix alongside your team, and is your point of contact.
Take this documentation to present to decision-makers.
The comparison
Managed EASM, an annual pentest, or trusting only the internal inventory
There are three ways to deal with what your company exposes out there: a managed EASM that discovers, prioritizes and watches continuously; a one-off pentest, which goes deep on a scope on an agreed day; or trusting the internal inventory and hoping it is complete. The comparison is between models of external visibility. The Zamak column lists only what Zamak delivers to the client.
View of the exposure
The Zamak choice
Managed EASM
Continuous and from the outside, the same the attacker has
Annual one-off pentest
A snapshot of a single day, aging in weeks
The internal inventory only
Only what IT already knows; the forgotten stays invisible
Coverage
The Zamak choice
Managed EASM
The entire footprint, including shadow and cloud
Annual one-off pentest
Only the agreed scope; the rest is left out
The internal inventory only
Limited to what is in the official inventory
Unknown assets
The Zamak choice
Managed EASM
Discovers the ones no one remembers creating
Annual one-off pentest
Only if, by chance, they are in the scope
The internal inventory only
They do not appear, because they are not on the list
Prioritization
The Zamak choice
Managed EASM
A short queue by the real risk of exploitability
Annual one-off pentest
The test's list, with no upkeep afterward
The internal inventory only
No prioritization of what is exposed from the outside
Reaction to change
The Zamak choice
Managed EASM
An alert as soon as a new exposure appears
Annual one-off pentest
Nothing until the next test, months later
The internal inventory only
Usually finds out only at the incident
Cost and effort to have this
The Zamak choice
Managed EASM
A predictable subscription, with no discovery team to build
Annual one-off pentest
A fee per project, high to repeat often
The internal inventory only
Looks free, until the first leak
A comparison between models of external surface visibility (managed EASM, one-off pentest and trusting the internal inventory). The Zamak column lists only what Zamak delivers to the client. EASM discovers, prioritizes and watches; closing each door is driven with your IT team and managed cybersecurity. No tool finds 100% of what exists, but seeing your surface from the outside and continuously is what comes closest to it.
Risk, impact and response
For every exposed door, a finding before the attacker finds it
A forgotten server from an old campaign is still online with outdated software
A known, exploitable flaw open for months, with direct entry into your network
How EASM responds
The forgotten asset is discovered and enters the fix queue before becoming an entry point
A test environment with real data was published on a subdomain and never taken down
Internal data and a login with a default password exposed to the entire internet
How EASM responds
The shadow subdomain is revealed and the exposure is flagged for takedown or restriction
A remote access or panel was left open to the internet, not just to the team
The fastest-growing vector: brute-force or exploitation of a known flaw, and the intruder walks in
How EASM responds
The open door is detected and prioritized at the top of the queue to be closed or restricted
A certificate expires or a cloud space was misconfigured and went public
A browser warning that drives customers away, or private files exposed for free
How EASM responds
The certificate or the configuration is flagged and your team fixes it before the impact
The discovery, the prioritization, the change alert and the point of contact are Zamak's; closing each door is driven alongside your team.
For every decision maker
What seeing your own company from the outside means for whoever decides
Knowing the entire surface your company exposes, before a criminal uses it, solves a different pain for each role in the company.
Owner and founder
The business you built does not fall through a door no one knew was open
You know exactly what your company exposes on the internet, before a criminal uses it. That feeling of not knowing where the gaps are gives way to a clear map and a queue of what to fix. What you took years to build does not become news because of a forgotten server or a test environment someone left open and no one saw.
Executives and management
The invisible risk of exposure becomes an inventory and a prioritized queue
Instead of discovering an exposure the hard way, an incident, you have the complete map of your external surface and a queue of what to reduce first, with a report for the board, the insurance and the audit. The average breach costs 4.44 million dollars, according to IBM; knowing and reducing your exposure continuously is a fraction of that, and the kind of control audits and insurers increasingly expect to see.
Internal IT leader
The outside eyes your team cannot produce on its own
Your team takes very good care of the perimeter it knows, but no one can watch from within everything the company exposes from the outside, and the day-to-day leaves no time to hunt the forgotten asset. EASM hands your team the complete footprint, the external shadow and the queue of what to fix first. It is the backup that adds to your team, alongside it, never in its place: you decide and fix, with the map in hand.
IT partner
An external surface module for your offer
Offer your clients the external view of their exposure, without building a discovery platform of your own or keeping an attack surface team. Zamak operates the discovery and the analysis behind the scenes and delivers the prioritized inventory; you drive the fix with the client, and the relationship stays yours.
Why Zamak
The map of your exposure, with people who understand your business driving the fix
Zamak Technologies does not just hand over a scan report for you to sort out. It curates the inventory of your external surface, prioritizes by real risk, watches without stopping, warns when something changes and translates each exposure into your business language, driving the fix alongside your team.
It is years of experience caring for the IT of companies, with specialists who serve in Portuguese, English and Spanish. It is your backup for what happens on the edge between your company and the internet, and your point of contact, alongside your team, never in its place.
Microsoft Solutions Partner · Addee (N-able) Elite Group · Great Place to Work
Discovery and analysis backed by an international reference in threat intelligence, a member of FIRST and a contributor to the Verizon Data Breach Investigations Report.
Frequently asked questions
What companies ask before signing up
See also Threat Intelligence & Dark Web Monitoring (CTI) · Credential & Data Leak Monitoring · Digital Threat Takedown · Zamak managed cybersecurity
Let us talk
The attacker has already mapped your company. You are the one missing that map.
As you read this, what your company exposes on the internet is there for any criminal to find, and the exploitation of an exposed asset is already the entry point of 20% of breaches, a 34% rise in one year. Whoever sees their own surface from the outside closes the doors first; whoever does not, finds out at the incident. Talk to Zamak and see your company the way the attacker sees it: the complete map of your footprint, what is exposed and the queue of what to fix first, with the discovery, the prioritization and the watch handled by Zamak.
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