Description: Process security refers to the measures taken to protect processes from unauthorized access. In a computing environment, processes can run in different privilege levels, typically including high privilege (kernel mode) and lower privilege (user mode). Kernel mode is the highest privilege level, where the operating system has full access to all hardware resources and can execute any instruction. In this mode, critical system operations are managed, such as memory management and inter-process communication. On the other hand, user mode is a lower privilege level, where applications and user programs run with restrictions. This means they cannot directly access hardware resources or execute instructions that could compromise system stability. The separation between these privilege levels is fundamental to process security, as it prevents a malicious program in user mode from affecting the operating system’s functioning or accessing sensitive data. This security architecture allows the operating system to control access to resources and ensure that processes run safely and in isolation, thus protecting the integrity and confidentiality of information.
