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Introduction: A Breach Without a Traditional Break-In
The most dangerous data breaches do not always begin with ransomware, stolen passwords, or an exploited zero-day. Sometimes, the attacker simply finds data that has accidentally been left exposed to the internet.
That is the disturbing lesson emerging from the investigation into ExfilSquad, an emerging data-extortion group that surfaced in July 2026 and has since published hundreds of gigabytes of information allegedly taken from organizations using Microsoft Dynamics 365 environments.
According to an August 13 analysis from Fortra Intelligence and Research Experts, the operation involved data connected to at least 13 organizations and approximately 27 million records. The released material reportedly totals around 382.64 GB and appears closely associated with Microsoft Dynamics 365 CRM and ERP environments, particularly Microsoft Dataverse data exports.
But there is an important distinction.
The available evidence does not indicate that ExfilSquad broke into Microsoft Dynamics 365 itself, discovered a Dynamics 365 zero-day, deployed ransomware across corporate networks, or conducted a conventional lateral-movement campaign. Instead, Fortra’s investigation points toward a much quieter and potentially more widespread problem: improperly configured Microsoft Power Pages portals that may have allowed anonymous users to access Dataverse information.
That changes the story completely.
This was potentially not a case of attackers defeating Microsoft’s cloud security. It was a case of sensitive information becoming reachable because an organization’s own cloud configuration may have made it publicly accessible.
The ExfilSquad Campaign Emerges
ExfilSquad first appeared on July 26, 2026, when the group began listing victims as part of an emerging data-extortion campaign.
At that stage, the group claimed 15 victims, immediately attracting attention because of the apparent connection between the targets and Microsoft Dynamics 365 environments.
Unlike traditional ransomware operations, however, ExfilSquad did not appear to rely on encrypting corporate systems and demanding payment for decryption keys.
The operation instead centered on data theft and extortion.
That distinction matters because data-extortion groups can cause significant damage without ever deploying ransomware. If attackers obtain customer records, employee information, financial data, business documents, or operational records, they can threaten publication and use the stolen information itself as leverage.
Fortra Examines the Released Data
Fortra Intelligence and Research Experts subsequently obtained samples of information released by ExfilSquad and analyzed the material.
According to Fortra, the evidence supported the conclusion that the group had obtained access to sensitive organizational data.
On August 7, ExfilSquad published data associated with 13 victims through torrent-based distribution.
The material reportedly amounted to approximately 382.64 GB and contained more than 27 million records.
The scale is significant.
Twenty-seven million records is not simply a collection of isolated documents. At that volume, the exposure could potentially represent years of accumulated customer, employee, business, transactional, or operational information depending on the databases involved.
Microsoft Dynamics 365 Becomes the Central Connection
The released information appears strongly associated with Microsoft Dynamics 365 CRM and ERP environments.
Fortra researchers found characteristics consistent with Microsoft Dataverse exports, a technology used to store and manage data for Microsoft business applications and Power Platform services.
This is where the incident becomes particularly interesting from a cybersecurity perspective.
The presence of Dynamics 365-related data does not automatically mean Dynamics 365 itself was hacked.
Cloud applications frequently interact with portals, APIs, connectors, permissions, databases, authentication systems, and custom applications. A weakness in one of those layers can expose information without requiring an attacker to compromise the underlying cloud service.
That distinction should remain at the center of this story.
No Evidence of Ransomware Encryption
One of the most notable findings from
There was no reported indication that ExfilSquad encrypted corporate networks and demanded payment for restoring access.
Instead, the operation appears to have focused on extracting information and threatening its publication.
This represents a broader evolution in cybercrime.
Attackers increasingly understand that organizations may be willing to tolerate temporary operational disruption rather than pay criminals. Sensitive data, however, creates a different pressure point.
A company may recover its systems quickly while still facing regulatory investigations, legal exposure, customer notification requirements, reputational damage, and long-term consequences from stolen information.
No Traditional Lateral Movement Identified
Fortra also reported no evidence of traditional lateral movement associated with the investigated activity.
In a conventional enterprise intrusion, attackers might compromise one endpoint, steal credentials, move between systems, escalate privileges, locate file servers, access databases, and ultimately deploy malware across the environment.
The ExfilSquad case appears different.
If the data was already reachable through publicly accessible portals, attackers could potentially bypass much of that traditional intrusion chain.
There would be no need to spend weeks moving through an internal network if the desired information could already be retrieved remotely.
No Evidence of a Dynamics 365 Zero-Day
Another critical point is that the available evidence does not suggest that ExfilSquad exploited a Dynamics 365 zero-day vulnerability.
That is important because headlines involving Microsoft platforms can easily lead readers to assume that Microsoft itself was breached.
The investigation instead points toward potentially misconfigured Microsoft Power Pages environments.
In practical terms, this means organizations may have unintentionally exposed data through the way they configured their own cloud applications and permissions.
The difference between a software vulnerability and a configuration weakness is enormous, but the consequences for exposed data can sometimes look remarkably similar.
The Power Pages Connection
Microsoft Power Pages is designed to allow organizations to build external-facing websites and business portals.
Those portals can interact with Dataverse and other Microsoft services.
That capability is powerful, but it also introduces a security responsibility.
If a portal is configured incorrectly, data that should remain restricted could potentially become accessible to anonymous users.
According to
The attackers may not have needed to defeat a sophisticated authentication system.
They may simply have discovered portals where permissions allowed information to be read without appropriate authorization.
More Than 10,000 Potentially Exposed Instances
Fortra reported identifying more than 10,000 potentially publicly accessible Power Pages instances during its research.
That number deserves serious attention.
It does not mean that all 10,000 instances were confirmed to expose sensitive information.
It does, however, illustrate the enormous attack-surface problem created when thousands of cloud applications are deployed across different organizations, teams, contractors, and business units.
A company can have excellent endpoint security and still expose data through a poorly configured cloud portal.
The Organizations Named in the Dataset
The published material reportedly includes information associated with organizations such as Microsoft, Allstate, Frontier Airlines, the City of Atlanta, the City of Houston, DC Public Schools, and the UK Department for Education, among others.
The appearance of an organization in a published dataset should not automatically be interpreted as proof that the organization itself was directly hacked.
Fortra specifically emphasized that its research relied on open-source and dark-web evidence and that researchers did not directly collaborate with the organizations named by ExfilSquad.
That limitation is important when interpreting the findings.
The Bigger Cloud Security Problem
The ExfilSquad case demonstrates why cloud security cannot stop at infrastructure security.
Organizations often assume that using a major cloud provider automatically protects their information.
It does not.
Cloud platforms provide security controls, identity systems, encryption capabilities, logging, permissions, and other protections. But customers still determine how many of those controls are configured and how applications expose information.
The cloud provider may secure the platform.
The customer still has to secure the way its data is used.
Configuration Can Become the Breach
A misconfiguration can look harmless during development.
A portal might need temporary anonymous access while engineers test functionality. A developer might create a broad permission rule to solve an application problem. A business team might deploy a new portal without fully understanding the data relationships behind it.
Months later, that temporary configuration can become permanent.
If the portal is indexed, discovered through scanning, or otherwise identified by an attacker, the exposed information can become an immediate target.
No malware is necessary.
No ransomware is necessary.
No zero-day is necessary.
Why SaaS Data Exposure Is So Difficult to Detect
Traditional security monitoring is often designed around recognizable attacks.
Security teams look for suspicious login activity, malware execution, command-and-control traffic, privilege escalation, endpoint compromise, and unusual internal network behavior.
Public data exposure creates a different challenge.
If an attacker accesses information through a legitimate web interface, the traffic may look remarkably ordinary.
The request can appear to come from a normal browser.
The application can return the requested information normally.
There may be no malicious executable.
There may be no obvious exploit.
There may be no compromised workstation.
The security problem can therefore exist at the authorization layer rather than the malware layer.
The 27 Million Records Question
The reported figure of more than 27 million records is one of the most striking elements of the incident.
Record counts, however, require context.
A “record” can represent anything from a customer entry to a transaction, contact, business object, application entity, or another structured database element.
Therefore, the number alone does not tell us exactly how many individuals were affected or how sensitive every record was.
Nevertheless, 27 million records indicate a potentially enormous data footprint.
The value of such information to criminals can extend far beyond immediate extortion.
Data Can Become a Long-Term Weapon
Once information leaves an
Files can be copied.
Databases can be mirrored.
Torrents can be redistributed.
Screenshots can circulate.
Individual records can be extracted and resold.
Even if the original leak disappears from one location, copies may remain elsewhere.
That makes data-extortion incidents fundamentally different from ordinary service outages.
Restoring a server does not restore secrecy.
Why ExfilSquad’s Approach Matters
ExfilSquad’s reported activity demonstrates how cybercriminals can combine automated discovery with data-extortion economics.
If exposed portals can be identified at scale, attackers may not need sophisticated malware for every target.
Instead, the operation can become a reconnaissance problem.
Find exposed service.
Determine whether valuable data is accessible.
Extract the information.
Validate the dataset.
Contact or publicly list the victim.
Threaten publication.
Repeat.
That model can potentially be scaled far more efficiently than traditional ransomware campaigns.
The Security Lesson for Microsoft Customers
Organizations using Dynamics 365, Dataverse, Power Pages, Power Platform, or related Microsoft cloud technologies should treat permissions as a primary security boundary.
Security teams should know which portals exist.
They should know which portals permit anonymous access.
They should understand exactly what Dataverse tables and records those portals can reach.
They should regularly test whether sensitive records can be retrieved without authentication.
Most importantly, they should not assume that a portal is safe simply because the underlying Microsoft service is secure.
What Organizations Should Audit First
The first step is asset discovery.
Organizations need an accurate inventory of every Power Pages site, portal, custom application, connector, API, and externally accessible business application.
The second step is permission analysis.
Security teams should determine whether anonymous users can read information that should require authentication.
The third step is data classification.
Not every Dataverse object carries the same risk. Customer information, financial records, employee information, identity data, and sensitive business records should receive stricter controls.
The fourth step is continuous monitoring.
A one-time audit is not enough.
Cloud environments change constantly.
A permission that is safe today may become dangerous after tomorrow’s application update.
A New Definition of Attack Surface
The traditional definition of attack surface focused heavily on IP addresses, servers, endpoints, VPN gateways, firewalls, and internet-facing applications.
Modern organizations need a broader definition.
The attack surface now includes SaaS configurations, APIs, low-code applications, portals, identities, cloud storage, databases, third-party integrations, and permissions.
A company may have thousands of these components.
Many may have been created by departments that do not consider themselves part of the security organization.
That is exactly why cloud governance has become so important.
What Undercode Say:
Cloud Security Is Now a Permission Problem
The ExfilSquad investigation illustrates a fundamental shift in cybersecurity.
Attackers do not always need to defeat the platform.
They can exploit the way organizations configure the platform.
This makes identity and authorization just as important as vulnerability management.
A perfectly patched system can still expose confidential information.
A zero-day is not required when the door is already open.
Power Pages and Dataverse provide organizations with enormous flexibility.
But flexibility creates configuration complexity.
Complexity creates opportunities for mistakes.
The reported 10,000-plus potentially accessible instances should therefore be treated as an important warning about visibility.
Organizations cannot protect assets they do not know exist.
Security teams should continuously enumerate externally accessible cloud services.
They should inspect authentication requirements.
They should inspect anonymous access.
They should inspect table permissions.
They should inspect API exposure.
They should inspect relationships between portal users and Dataverse objects.
They should inspect whether sensitive fields are returned to unauthenticated clients.
They should also test from outside the corporate network.
An application may look secure from inside the enterprise while behaving very differently from the public internet.
The incident also highlights the limitations of endpoint-centric security.
EDR can protect laptops.
Firewalls can protect networks.
SIEM platforms can correlate authentication events.
But none of those controls automatically prevent a public portal from returning sensitive database records.
This is why cloud application security needs its own monitoring strategy.
Organizations should monitor unusual increases in data retrieval.
They should investigate large-scale API requests.
They should monitor anonymous traffic patterns.
They should identify portals that suddenly receive automated requests.
They should establish baselines for normal data access.
They should also review application logs before an incident occurs, rather than discovering after publication that valuable evidence was never retained.
The most important lesson may be cultural.
Developers should not be expected to understand every security implication of every cloud permission without support.
Security teams should work directly with application owners.
Cloud governance should be automated where possible.
Security testing should become part of deployment pipelines.
Permissions should follow least-privilege principles.
Anonymous access should be treated as an intentional security decision rather than a harmless default.
Sensitive data should never become publicly readable simply because an application needs to display something on a web page.
The ExfilSquad case also demonstrates why threat intelligence matters.
Organizations should not wait for an attacker to publish a database before learning that their data is exposed.
External attack-surface monitoring can identify internet-facing services before criminals discover them.
Dark-web monitoring can identify leaked credentials and datasets.
Cloud security posture management can identify configuration weaknesses.
Data-loss monitoring can detect unusual movement of sensitive information.
These capabilities work best together.
Cybersecurity is no longer just about stopping malicious software.
It is about controlling who can access information, from where, through which application, under what conditions, and for how long.
The strongest cloud security strategy assumes that configuration errors will happen.
The goal is to discover them before attackers do.
That is the real warning behind the ExfilSquad story.
The frightening part is not simply that 27 million records were reportedly exposed.
The frightening part is the possibility that large-scale data theft can happen without the attacker needing to “break into” the target’s infrastructure in the traditional sense.
The future of cloud security will increasingly be determined by visibility, identity, permissions, and continuous verification.
Deep Analysis: Investigating Cloud Exposure From the Defensive Side
Enumerate External Assets
Security teams can begin by identifying externally exposed infrastructure and services.
dig +short example.com nslookup example.com
These basic commands help establish what public DNS infrastructure is associated with an organization’s domain.
Inspect Web Exposure
Administrators can identify publicly reachable web services with defensive asset-discovery tools.
curl -I https://example.com
The objective is not to attack the service, but to understand what the public internet can see.
Review TLS Configuration
Organizations should verify that externally accessible applications are using appropriate TLS configurations.
openssl s_client -connect example.com:443 -servername example.com
This can provide useful visibility into the certificate and TLS handshake presented by a public service.
Search Application Logs
Where Microsoft cloud logging is available, defenders should examine authentication, application, API, and data-access activity for unusual patterns.
A useful defensive workflow is:
grep -Ei "anonymous|unauthorized|forbidden|api|export|download" application.log
This does not prove an intrusion, but it can help identify events requiring investigation.
Identify Unexpected Data Retrieval
Large bursts of requests should receive additional scrutiny.
awk '{print $1}' access.log | sort | uniq -c | sort -nr | head
This can help defenders identify source addresses generating unusually large numbers of requests in a traditional web-log environment.
Check for Exposed Configuration Files
Organizations should ensure that sensitive configuration material is not publicly reachable.
find /var/www -type f ( -name ".env" -o -name ".config" )
The command should be used only against systems the organization owns or is explicitly authorized to test.
Validate Access Controls
The most important test is not whether a portal is online.
It is whether an unauthenticated user can retrieve information that should require authorization.
Defenders should perform controlled access testing against their own environments and verify that sensitive Dataverse objects cannot be retrieved through unintended anonymous paths.
Review Least Privilege
Every portal and application should have the minimum permissions necessary to perform its business function.
Broad permissions are dangerous because they turn one configuration mistake into a potentially large data exposure.
Automate Continuous Monitoring
Cloud security should not depend entirely on periodic manual reviews.
Organizations can integrate asset discovery, configuration assessment, identity monitoring, logging, and alerting into a continuous security program.
The objective is simple.
Find the exposed service before the attacker does.
The Human Factor Behind Cloud Breaches
Configuration mistakes are rarely caused by a single careless individual.
They often emerge from complex organizations where developers, business teams, administrators, contractors, and security professionals all manage different pieces of the same environment.
A portal can change ownership.
A database can gain new fields.
A permission can be inherited.
A test environment can become production.
A temporary rule can survive for years.
Security programs must therefore be designed around continuous change rather than assuming that today’s configuration will remain safe tomorrow.
Verified Findings
✅ Fortra reported analyzing ExfilSquad’s activity and released data samples, with the investigation published on August 13, 2026.
✅ The reported dataset totals approximately 382.64 GB and more than 27 million records, according to the supplied Fortra analysis.
✅ The investigation found no evidence of ransomware encryption or a traditional Dynamics 365 zero-day exploit, while identifying potentially misconfigured Power Pages permissions as the leading explanation for the exposure.
Important Context
❌ It would be inaccurate to describe this simply as Microsoft Dynamics 365 being hacked. The available evidence instead points toward potentially exposed customer-configured portals and Dataverse permissions.
❌ The presence of an organization’s name in the released material does not, by itself, prove that the organization suffered a conventional network compromise. Fortra explicitly noted that its investigation relied on open and dark-web evidence rather than direct cooperation with the named organizations.
Prediction
(+1) Cloud Misconfiguration Will Become an Increasingly Valuable Target
Attackers will increasingly search for exposed SaaS applications instead of relying exclusively on malware.
Anonymous-access mistakes and excessive permissions will become major targets for automated reconnaissance.
Organizations will invest more heavily in external attack-surface monitoring and cloud configuration security.
Data-extortion groups will continue targeting information directly because stealing data can be sufficient to pressure victims without encrypting their networks.
Traditional ransomware will not disappear, but organizations that focus only on endpoint protection will remain vulnerable to attacks that bypass endpoints entirely.
The Future of Data Extortion
The ExfilSquad case represents a broader transformation in cybercrime.
The attacker of tomorrow does not necessarily need to deploy ransomware across thousands of computers.
Sometimes, the objective is much simpler.
Find the data.
Find a way to retrieve it.
Copy it.
Threaten to publish it.
The security industry has spent years preparing for attackers who break down doors.
Cloud security now has to prepare for attackers who discover that the door was never properly locked.
That is why the reported exposure of more than 27 million records deserves attention far beyond the organizations directly associated with the dataset.
The central lesson is not that Microsoft Dynamics 365 is inherently insecure.
The central lesson is that cloud security ultimately depends on how applications, identities, permissions, and data are configured and continuously monitored.
When sensitive information becomes publicly reachable, attackers may not need sophisticated exploits.
They only need to notice.
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