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Credential & Data Leak Monitoring

The password that opens your company may already be for sale, and the antivirus does not see it: it is a valid login, no virus. And it is not only the password. Your customer base, your contracts and your directors' data leak too, often through a breached supplier, and end up for sale in places you do not even know exist.

Leak monitoring continuously cross-checks what is yours against what circulates for sale on the dark web, finds what has already left and becomes an alert with evidence so you act before it is used. Zamak Technologies operates the monitoring, guides the response and is your point of contact.

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Scoped specifically to your company's needs
Specialists serving in English, Portuguese and Spanish

Store · Threat Intelligence (Leaks)

No one needs to break into your company if the password that opens the door is already for sale.

An employee reused their work password on a personal site, a password-stealing program took everything, and weeks later someone logs into the company email as if they were that person: no virus, just a valid login. And it is not only the password. Your customer base, your contracts and your directors' data leak too, often through a supplier that was breached, and end up for sale in places your company does not even know exist. You usually find out late: when the fraud has happened, when the extortion arrives, or when the affected customer calls. The question is no longer whether your password policy is strong. It is who is watching what has already left you and circulates out there.

Stolen passwords and session cookies figure in 86% of breaches, the single biggest attack enabler there is, according to DeepStrike's Stealer Log Statistics 2025: the leaked credential is now the most used door.

54% of companies hit by ransomware had credentials from their own network for sale on criminal marketplaces before the attack, according to the same DeepStrike analysis: the leak appears first, and whoever sees it in time closes the door.

A leaked credential is a valid login: the antivirus and the firewall do not see it, because there is no virus and no malicious file. And leaked data starts a clock the day it shows up for sale, under data protection law. Only whoever monitors the outside sees this in time.

Leak monitoring continuously cross-checks your company's credentials and data against what circulates for sale on the open internet and the dark web, and turns every finding into an alert, with the evidence, so you act before it is used against you. Zamak Technologies puts that monitoring to work for you, guides the response and is your point of contact.

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How a leak becomes an attack

What has already left your company circulates outside weeks before it becomes a loss.

See four common ways your credential or your data leaks, starts being traded, and reaches you as fraud, breach or a fine, when it could already have been contained. None of them depends on the size of your company: password-stealing programs do not pick their target, and you leak through the supply chain even without being the direct target.

An employee's password leaked and became a valid login in a fraudster's hands.

A reused password was captured by a stealer program installed by accident and sold in a bundle for a few dollars. Weeks later, a criminal bought that access and logged into the company email as if they were the employee, to divert a payment or ask a colleague for data. There is no virus for the antivirus to catch. Whoever cross-checks the company's passwords against what is for sale sees the leak and warns in time to force a reset, before the first unauthorized access.

Your customer base showed up advertised, for sale to whoever pays.

Often the leak did not even start at your company: a supplier or a partner was breached and your contact base, your orders and your customers' data went with it. Now they are on a forum, for sale, and the listing is usually the warning that a break-in or an extortion is coming next. Seeing that listing the day it appears gives your company the chance to notify those exposed within the legal deadline, contain and prepare, before the news breaks.

1.8 billion
credentials stolen by stealer programs in 2025 alone, hitting 5.8 million devices, an 800% surge, according to DeepStrike

A confidential contract and spreadsheet left a compromised mailbox.

One breached account is enough for internal documents, a proposal, a contract, a financial spreadsheet, to leave the company and start circulating. It is information that gives an edge to a competitor, ammunition to a fraudster or material for blackmail. The data already copied does not come back, but knowing early that it is exposed lets you assess the impact, warn who needs it and reinforce what was left open, before the damage multiplies.

A director's personal data was exposed and became ammunition for a scam.

When an executive's phone, address and documents show up in a leak, they feed targeted scams: a call that sounds legitimate because the fraudster knows real details, an extortion, a transfer fraud in leadership's name. Discovering that exposure early lets you brief the person, reinforce their protection and alert the team, before the scam uses what leaked.

In all of these cases, the data leaves you and circulates outside before becoming an incident, and the antivirus and firewall, which look inward, see nothing. Seeing the leak in time, with the evidence, and responding is what leak monitoring adds to your defenses.

What leak monitoring is

It is not one more antivirus. It is knowing what is already yours and already out there.

Leak monitoring, also called leak intelligence, is a service that continuously cross-checks what identifies your company (your domains, corporate emails, the data you define as yours) against what appears exposed or for sale on the open internet and the dark web (the part of the internet search engines do not index, much of it reached only through anonymous networks, where criminals trade stolen credentials and data). When a password, a card, a database or a document of yours is found, it becomes an occurrence with an alert and the evidence of where it is, so you act before it is used. Zamak puts that monitoring to work for you, guides the response and is your point of contact.

Finds the leaked credential before the first unauthorized login

Dedicated robots constantly cross-check your company's credentials against what appears in leaks, stealer program bundles and criminal marketplaces. If a corporate password or a card surfaces, an automatic alert fires, in time to force a reset and revoke access before the criminal uses the login. It is the cheapest defense there is: neutralizing the attack in the window between the leak and its use.

Finds your exposed data and documents, with the evidence

It is not enough to know that 'something leaked'. The monitoring shows exactly where and in which source your customer base, a contract or a spreadsheet appeared, with secure access to the evidence. That precision is what turns a suspicion into a fast decision: assess what was exposed, notify who needs it and contain, with documented proof for the audit and for data protection law.

From finding to response: reset, contain, notify

Detecting without responding only documents the damage. At every alert, Zamak guides what to do: force the reset of the exposed password, revoke access, assess what needs to be reported and by when, and, when the leak turns into a fake site or profile abusing your brand, trigger the removal request. It is what closes the cycle between knowing and resolving.

Leak monitoring does not replace your password policy, two-step authentication or antivirus: they cut the chance of leaking and make use harder; it assumes leaks happen, finds what has already left and lets you respond in time. Whoever already has prevention gains here the warning when it fails, which is when the damage begins.

What is included

The monitoring that finds and the management that responds, together

You get continuous monitoring of what is yours out there and Zamak taking care of everything around it: reading every finding, guiding the response and the contact. You focus on your business.

The monitoring that finds what leaked

The continuous cross-check of what is yours against what circulates for sale or exposed.

  • Continuous cross-check of your domains, emails and data against leaks, criminal marketplaces and the dark web
  • Detection of leaked company credentials and cards, with an automatic alert in time to reset the password
  • Alert when your database, documents or internal information show up for sale or exposed
  • Monitoring of executives' and key people's personal data against exposure that feeds scams
  • Secure access to the evidence of each finding: where it is, in which source, so you act with proof
  • Actionable occurrence with an email alert, and integration with your SIEM (the system that centralizes your security alerts) or ticketing system

Management and response by Zamak

The layer that turns each finding into action and places it all alongside your company.

  • Response guidance at each alert: reset the exposed password, revoke access, contain and assess what to report
  • Reading of each finding and translation of the technical evidence into your business language
  • Tuning of what is watched, your domains, data and key people, to your real risk
  • Triggering of the removal request (takedown) when the leak turns into a fake site or profile that abuses your brand
  • Reports and a dashboard under the Zamak brand, ready for your audit, your insurance and your board
  • A single point of contact to escalate each occurrence and decide the response together with you

Inside the service

How the monitoring finds, proves and alerts

For those who want the detail: this is how a piece of your data hidden in a bundle for sale becomes an alert with evidence in your inbox, in time for you to act.

Continuous cross-check of what is yours

You define what is yours, the domains, the corporate emails, brands and sensitive data, and a mesh of collectors constantly sweeps leaks, data markets, forums and the dark web for any appearance. It is the continuous presence in the places where stolen data is traded, unfeasible to maintain in-house without a dedicated mesh of collectors.

Robots dedicated to credentials and cards

One robot catalogs leaked credentials and fires an automatic alert if a password from your company is captured. Another captures leaked card numbers and identifies the issuing bank and the card network. These are the two fronts with the greatest immediate return, because they act in the short window between the leak and the use of the data.

Evidence with secure access, even in image and audio

The finding is not a plain 'yes, it leaked'. You receive where the data is and in which source, with secure access to the evidence. Automatic text reading in images and audio transcription find emails, documents and cards hidden inside screenshots and recordings, not just in plain text, so the exposure does not slip by.

Actionable alert and integration

Each confirmed finding opens an occurrence with the context of what was found. The alert arrives by email and, when you want, straight into your SIEM or ticketing system through integration, so the finding becomes a task in your process, without depending on someone watching a dashboard.

Guided response and brand takedown

At every alert, Zamak guides the response: reset the exposed password, revoke access, contain and assess what to report and by when. When the leak turns into a fake site or profile that abuses your brand, Zamak triggers the removal request with the providers and the platforms. The data already leaked cannot be erased, but a fast response reduces what it can cause.

Reporting under your brand and recognized intelligence

The reports, the alerts and the dashboard arrive under the Zamak brand, not a vendor's name. Behind it, the collection and analysis come from internationally recognized threat intelligence, which lends authority to what you take to your audit, your insurance and your board.

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 collection and specialized analysis run without stopping; Zamak receives the findings, guides the response, translates them for your business and is your point of contact.

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The comparison

Prevention only, searching on your own, or monitoring the leak and responding

There are three ways to deal with what has already leaked from your company: rely only on prevention (password policy and two-step authentication), try to search yourself for what appears in leak databases, or hire monitoring that continuously cross-checks what is yours and guides the response. The comparison is between coverage models. The Zamak column lists only what Zamak delivers to the client.

What changes in practice
The Zamak choice
Managed monitoring
Prevention onlySearching on your own
Where the leak is seenContinuous cross-check of what is yours against leaks and the dark webDoes not look outside: assumes nothing leakedOnly what a free checker manages to index
Leaked credentialAutomatic alert with the source, in time to reset the passwordThe valid password still circulates: reuse and session theft get throughDepends on checking leak databases by hand, with no continuous alert
Data, documents and database for saleAlert with the evidence: where it is and in which sourceOut of prevention's reach; it does not watch the outsideYou usually find out through a customer complaint or the press
Evidence to actThe exact source and record, ready to notify and containNone: prevention does not produce leak evidenceA yes or no with no context, hard to act on
From finding to responseResponse guidance and takedown of what abuses the brandDoes not respond to a leak that already happened outsideYou are on your own to react
Cost and effort to have thisA predictable monthly cost, with no team to buildAlready paid for, but blind to what has already leftYour team's hours, with no scale or coverage

Where the leak is seen

The Zamak choice

Managed monitoring

Continuous cross-check of what is yours against leaks and the dark web

Prevention only

Does not look outside: assumes nothing leaked

Searching on your own

Only what a free checker manages to index

Leaked credential

The Zamak choice

Managed monitoring

Automatic alert with the source, in time to reset the password

Prevention only

The valid password still circulates: reuse and session theft get through

Searching on your own

Depends on checking leak databases by hand, with no continuous alert

Data, documents and database for sale

The Zamak choice

Managed monitoring

Alert with the evidence: where it is and in which source

Prevention only

Out of prevention's reach; it does not watch the outside

Searching on your own

You usually find out through a customer complaint or the press

Evidence to act

The Zamak choice

Managed monitoring

The exact source and record, ready to notify and contain

Prevention only

None: prevention does not produce leak evidence

Searching on your own

A yes or no with no context, hard to act on

From finding to response

The Zamak choice

Managed monitoring

Response guidance and takedown of what abuses the brand

Prevention only

Does not respond to a leak that already happened outside

Searching on your own

You are on your own to react

Cost and effort to have this

The Zamak choice

Managed monitoring

A predictable monthly cost, with no team to build

Prevention only

Already paid for, but blind to what has already left

Searching on your own

Your team's hours, with no scale or coverage

A comparison between coverage models for the leak (prevention only, searching on your own and managed monitoring). The Zamak column lists only what Zamak delivers to the client, never a platform feature Zamak does not operate.

Risk, impact and response

For every leak, a response before the damage

Risk scenarioWhat is at stakeHow the monitoring responds
A company password leaked and is for saleThe attacker gets in as if they were an employee and diverts a paymentThe alert arrives and you force the reset before the first unauthorized access
The customer base was leaked and advertisedA data protection fine, affected customers and lost trustYou are warned that day, notify those exposed within the deadline and contain before the news
A confidential document or contract leaked from an emailAn edge to a competitor, ammunition for a scam or blackmailYou learn the file is exposed, assess the impact and reinforce what was left open
An executive's personal data was exposedA targeted scam or extortion uses the person's real detailsThe exposure is found and you brief the person and reinforce their protection before the scam

A company password leaked and is for sale

The attacker gets in as if they were an employee and diverts a payment

How the monitoring responds

The alert arrives and you force the reset before the first unauthorized access

The customer base was leaked and advertised

A data protection fine, affected customers and lost trust

How the monitoring responds

You are warned that day, notify those exposed within the deadline and contain before the news

A confidential document or contract leaked from an email

An edge to a competitor, ammunition for a scam or blackmail

How the monitoring responds

You learn the file is exposed, assess the impact and reinforce what was left open

An executive's personal data was exposed

A targeted scam or extortion uses the person's real details

How the monitoring responds

The exposure is found and you brief the person and reinforce their protection before the scam

Reading the findings, the response guidance and the point of contact are Zamak's.

For every decision maker

What knowing about the leak in time means for whoever decides

Seeing what has already left you before it is used solves a different pain for each role in the company.

Owner and founder

Your secrets and your people, watched where you cannot reach

You find out that company data or a director's documents leaked through monitoring, with time to react, and not through the extortion call or the affected customer's complaint. What you built stays protected where the firewall does not reach.

Executives and management

The diffuse risk of a leak becomes a predictable line

Instead of hoping nothing leaks, you have monitoring and response budgeted as a known monthly cost, with documented evidence for audit, insurance and data protection law. A breach costs, on average, 4.44 million dollars worldwide, according to IBM; knowing about the leak in time is a fraction of that.

Internal IT leader

The leaked-credential warning your team cannot produce on its own

Your team takes care of the perimeter and the passwords; the monitoring delivers what leaks outside, exposed credentials and data, ready to trigger the reset before the unauthorized login. Zamak, as your backup, adds to your work, alongside your team, never in its place; you decide what to do with each alert.

IT partner

A monitoring and response module for your offer

Offer your clients leak monitoring and response guidance, without building your own threat intelligence team. Zamak operates behind the scenes and handles management; the relationship with the client stays yours.

Why Zamak

The monitoring of what has already left, with people who understand your business at your side

Zamak Technologies does not just hand over an alerts dashboard. It puts monitoring to work, continuously cross-checking what is yours against what circulates outside, reads every finding, guides the response, triggers the removal of what abuses your brand and translates the technical evidence into your business language.

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 leaks outside the perimeter and your point of contact, alongside your team, never in its place.

Microsoft Solutions Partner · Addee (N-able) Elite Group · Great Place to Work

Monitoring operated 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

Threat intelligence (CTI) is the broad radar of what criminals plan and say about your company out there: sites impersonating your brand, threats forming, actors targeting you. This service is the dedicated lens on what has already leaked from you: your own company's credentials and data that are already exposed or for sale, with the evidence of where they are and the response to contain. One watches the landscape; the other watches what is yours. The two complement each other, and Zamak deploys the ones that make sense for your risk.
You define what is yours, the domains, the corporate emails and the sensitive data, and dedicated robots constantly cross-check that against the credentials and the information appearing in leaks, password-stealing program bundles and criminal marketplaces, on the open internet and the dark web. When something of yours is captured, an automatic alert fires with the context and the evidence, in time for you to act.
The data already copied does not come back: no one can guarantee erasing a file that already circulates. That is why the value is in knowing in time and responding. At every alert, Zamak guides the response: force the reset of the exposed password, revoke access, assess what needs to be reported and by when. When the leak turns into a fake site or profile that abuses your brand, Zamak triggers the removal request (takedown) with the providers and the platforms; the effectiveness is high, but the timeline depends on each one and not every case is resolved immediately.
Yes, and the two complement each other. Two-step authentication makes using a leaked password harder, but it does not remove the risk: the same password is often reused on services without that protection, phishing scams capture the second factor, and session cookie theft skips the whole step. Besides, authentication protects the login, it does not stop your customer base, a contract or a director's data from leaking. Knowing that the credential or the data is exposed lets you reset the password, reinforce access and respond before the leak is exploited.
No. The monitoring watches the outside of your perimeter, so there is no agent to install on your computers and no tool of yours to replace. It complements what you already use: the alerts arrive by email and, if you want, straight into your ticketing system or your SIEM through integration. You make the most of what you have and gain the missing view, of what has already left you.
Yes. Discovering early that your company's personal data has leaked lets you assess and report the incident within the deadline that data protection law requires, instead of being caught by surprise. Each documented finding serves as evidence for audits, and the early detection of leaks is increasingly required by cyber risk insurers. It is concrete proof that you watch the risk outside the perimeter.
The investment is sized for each company, by what you want to watch, your domains, data and key people, and by the level of response that makes sense to include. It is usually a fraction of the cost of building your own threat intelligence team, with the collection platform and the analysts. A Zamak specialist talks with you, understands your exposure and settles the scope and the value for your case.

Let us talk

Find out what has already leaked from your company, before someone uses it

As you read this, companies' credentials and data circulate for sale in markets most do not even know exist: a corporate access log sells for a few hundred dollars, and in 54% of ransomware attacks the victim's credentials were already for sale before the attack. Whoever sees that movement in time resets the password and contains before the damage. Talk to Zamak and put monitoring in place, cross-checking what is yours against what circulates outside, alerting with evidence and guiding the response.

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