Application control software is a security solution that restricts which applications, scripts, and executables can run on endpoints or servers, essentially allowing only trusted, authorized software to execute. By enforcing allowlists or blocking malicious code, it helps prevent ransomware and unauthorized software use, acting as a critical, proactive layer alongside traditional endpoint protection.
The core of application control lies in its ability to enforce strict execution policies based on application identity, such as file hash, publisher certificate, or file path. By doing so, it helps organizations gain file-level visibility, control insider and third-party software risk, and help meet or maintain compliance requirements. Unlike traditional endpoint solutions that react to known threats, application control focuses on defining trust before execution, making it a critical component of a defense-in-depth security strategy. Its use is especially important in regulated industries and environments where security and operational integrity are paramount.
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Application control software provides organizations with greater control over what can run in their environments. By limiting applications to approved software only, businesses can reduce security risks, improve operational stability, and simplify IT management. It is widely used across industries to strengthen endpoint security and support governance requirements.
Application control software allows administrators to define which applications are permitted or denied from running. Allowlisting restricts execution to approved software only, while blocklisting prevents known unwanted or risky applications from running. These controls help reduce the attack surface and prevent unauthorized software from executing on endpoints and servers.
Policies can be created using file hashes, digital signatures, file paths, publishers, or application reputation data. Some solutions also support dynamic rules that automatically trust approved vendors or software categories. This flexibility allows organizations to maintain security while reducing the administrative burden of managing application policies manually.
Allowlisting is commonly used in high-security environments where only a limited set of applications should run. Blocklisting is often used to prevent specific risky tools, unauthorized remote access software, cryptocurrency miners, or known malware families. Many organizations combine both approaches to achieve stronger control over software execution.
Least privilege and elevation control are important capabilities in application control. Some solutions help reduce reliance on local administrator accounts by allowing users to operate with standard permissions for day-to-day activity. When elevated access is required, these solutions may apply privilege selectively through policy rather than granting broad administrator rights to the user. In some cases, approved applications can run with elevated rights while other software remains restricted. Depending on the solution, organizations may also gain visibility, logging, and administrative control over how elevated access is applied.
Application control software provides detailed visibility into application activity across the environment. Security and IT teams can monitor which applications are running, which are blocked, and how users interact with software on managed systems. This visibility helps organizations identify unauthorized applications and risky behavior quickly.
Most solutions collect execution logs that include timestamps, usernames, device information, file details, and policy actions. Security teams can use this data to investigate incidents, identify policy gaps, and understand software usage patterns across the organization.
Real-time monitoring capabilities also improve threat detection. Administrators can receive alerts when suspicious applications attempt to run or when policy violations occur. This helps organizations respond faster to malware, insider threats, and unauthorized software installations.
Modern attacks frequently rely on scripts and browser-based content instead of traditional executable files. Application control solutions often include the ability to restrict or monitor PowerShell, JavaScript, VBScript, batch files, macros, and other scripting engines commonly abused by attackers.
Organizations can create policies that allow only approved scripts or restrict script execution to trusted locations and signed content. This reduces the risk of fileless malware, malicious automation, and phishing attacks that rely on script execution to compromise systems.
Some solutions also extend control to browsers and browser extensions. Administrators can block unauthorized plugins, restrict access to risky web applications, and enforce secure browser configurations. These controls help reduce browser-based attack vectors and improve endpoint security.
Organizations often need structured processes for handling software requests and policy exceptions. Application control software commonly includes approval workflows that allow users to request access to blocked applications or elevated privileges directly from their devices.
IT and security teams can review requests, evaluate risk, and approve or deny access based on organizational policies. Temporary approvals can also be granted for specific users, devices, or time periods. This helps maintain security while minimizing disruptions to productivity.
Exception handling capabilities are especially important in environments with changing business needs. Instead of disabling security controls entirely, organizations can manage exceptions in a controlled and auditable way. Approval records and policy changes are typically logged for compliance and review purposes.
Managing application policies manually can become difficult in large environments. Many application control solutions reduce this burden by automatically trusting software installed through approved deployment systems, software management tools, or verified vendors.
For example, applications deployed through Microsoft Intune, SCCM, Jamf, or other trusted software distribution platforms can automatically receive approval status. This helps organizations maintain strong security controls without slowing down software deployment processes.
Some solutions also include policy learning or audit modes that observe application usage and recommend allowlisting rules automatically. These automation features simplify initial deployment and reduce the amount of manual policy configuration required over time.
Application control solutions typically provide centralized management consoles that allow administrators to manage policies across all devices from a single location. This simplifies deployment, monitoring, and enforcement across large and distributed environments.
Policies can be assigned based on departments, user groups, locations, operating systems, or device types. Organizations can apply stricter controls to sensitive systems while allowing more flexibility for development or testing environments.
Centralized management also improves consistency. Administrators can quickly update policies, deploy rule changes, and respond to emerging threats without configuring individual devices manually. This reduces operational complexity and improves overall security management.
Detailed reporting is an important feature of application control software. Solutions generate reports on blocked applications, allowed executions, policy violations, privilege escalations, and software usage across the environment.
These reports help organizations demonstrate compliance with internal security policies and external regulations such as PCI DSS, HIPAA, NIST, ASD Essential Eight, and ISO 27001. Audit logs provide evidence that software controls are actively enforced and monitored.
Reporting capabilities also support operational and security investigations. Teams can identify trends, review historical events, and analyze application activity during incident response efforts. Some solutions include customizable dashboards and scheduled reporting features for ongoing visibility.
Application control software often integrates with other security and IT management platforms to improve operational efficiency. Common integrations include SIEM systems, endpoint detection and response (EDR) tools, identity providers, and IT service management systems like ServiceNow.
These integrations help organizations strengthen existing security investments by connecting application control with detection and response workflows. For example, when unauthorized or unknown software is prevented from executing, EDR tools can operate in a cleaner environment with fewer unknown variables, helping teams focus investigations on more meaningful activity.
Integration with IT management tools also simplifies administrative tasks such as software deployment, ticket creation, asset tracking, and policy updates. By connecting application control with existing security and operational processes, organizations can improve visibility, automation, and response capabilities across the environment.
Airlock Digital helps organizations define trusted execution and control what runs across their environment. By operationalizing allowlisting as an ongoing process, Airlock Digital reduces exposure to unauthorized software while supporting predictable enforcement and operational stability.
Key features include:
Application allowlisting: Uses a Deny by Default approach to define what software is trusted to run. Airlock Digital enforces file-level control across applications, scripts, libraries, installers, and other executable content to help prevent unauthorized software execution and reduce exposure to malware, ransomware, and unwanted applications.
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ThreatLocker is a zero trust application control platform that helps organizations prevent unauthorized software from running across endpoints, servers, cloud environments, and networks. The platform uses a deny-by-default security model, meaning only approved applications are allowed to execute while everything else is automatically blocked.
Key features include:
Application allowlisting: Uses a deny-by-default model where only approved applications, scripts, and libraries are allowed to run. Any unapproved software is automatically blocked, helping prevent ransomware, malware, and unauthorized installations.
Granular application control: Provides control over what applications can run, when they can run, where they can run, and which users are allowed to execute them. Policies can be customized for departments, devices, or specific operational requirements.
Ringfencing: Restricts what approved applications are allowed to do after execution. Organizations can limit actions such as accessing files, launching child processes, or interacting with sensitive resources to reduce attack paths.
Zero Trust Network Access (ZTNA): Secures access to internal systems and services by verifying connections continuously. Unauthorized devices or users are prevented from accessing protected resources even if credentials are compromised.
Zero trust cloud access: Extends zero trust controls to cloud environments by validating device trust and access conditions before allowing connections to cloud applications and services.
Source: ThreatLocker
3. Broadcom Carbon Black App Control
Broadcom Carbon Black App Control is an application control and system lockdown solution to ensure that only trusted and approved software can run on endpoints and critical systems. The platform uses a positive security model, also known as a default-deny approach, where unknown or unauthorized applications are blocked automatically.
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Source: Carbon Black
AppLocker is a built-in Windows application control solution that helps organizations restrict which applications, scripts, DLLs, and executable files users are allowed to run. Managed through Group Policy and Windows PowerShell, AppLocker uses allowlisting rules based on file attributes such as publisher, file path, file hash, and version information to control software execution.
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Source: Microsoft App Locker
Trellix Application and Change Control is an endpoint and server security solution that helps prevent unauthorized software execution, system tampering, and unapproved configuration changes. The platform combines application allowlisting, change prevention, file integrity monitoring, and reputation-based threat intelligence to help organizations protect endpoints, servers, virtual machines, and fixed-function systems such as point-of-sale devices.
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ManageEngine Application Control is an endpoint security and privilege management solution that helps control application execution and administrative access across organizational endpoints. The platform combines application allowlisting, blocklisting, just-in-time access controls, and endpoint privilege management to reduce unauthorized software execution and excessive admin privileges.
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Application control software is important for preventing unauthorized applications from executing before they can compromise systems. By combining allowlisting, privilege management, monitoring, policy automation, and centralized administration, these platforms help organizations reduce attack surfaces, improve compliance, and strengthen endpoint security. As ransomware, fileless attacks, and unauthorized software usage continue to challenge organizations, application control remains one of the most effective preventive security measures available for protecting endpoints, servers, and critical business systems.