Description: Application blocking, in the context of access control systems, refers to the ability to restrict the behavior of applications according to policies defined by the user or system administrator. These systems allow administrators to define security profiles for specific applications, limiting their permissions and access to system resources. This means that even if an application is compromised or malicious, its ability to cause harm is significantly reduced, as it can only operate within the limits set by its profile. Policies can include restrictions on access to files, networks, and other system resources, thus providing an additional layer of security. This functionality is especially relevant in environments where security is critical, such as servers and systems handling sensitive information. By implementing application blocking, the aim is not only to protect the system from external threats but also to mitigate the impact of potential vulnerabilities in the software used.
History: Application blocking technologies have been developed and integrated into various operating systems to enhance security in computing environments, particularly in situations where untrusted applications may run. Over the years, these systems have evolved to include more advanced features and better integration with other security tools.
Uses: Application blocking is primarily used in various operating systems to protect critical applications and limit the damage they can cause if compromised. It is commonly employed in web servers, databases, and systems handling sensitive information. Additionally, it is used in development environments to test applications in a controlled setting before deployment in production.
Examples: A practical example of application blocking can be found in various Linux distributions, where access control mechanisms limit applications like web browsers and database systems. For instance, running a web browser under an application blocking system limits its access to files and system resources, reducing the risk of a browser attack compromising the operating system. Another case is the use of application blocking in database servers, where profiles can be defined to restrict access to sensitive data only to authorized applications.
