A buffer overflow occurs when a program attempts to write more data to a fixed length block of memory, or buffer, than the buffer is allocated to hold. Buffer overflow exploits may enable remote execution of malicious code or denial of service attacks.
A private (secret) key is an encryption key whose value should never be made public. The term may refer to the private key of an asymmetric key pair or a key shared by parties who are using symmetric encryption.
Application layering is a technology that delivers individual apps or groups of apps in layers distributed to users' virtual desktops at login. This allows IT to manage and update apps and base images separately.
Citrix AppDisk is a software component of XenApp and XenDesktop that delivers applications in layers independently from the virtual desktop operating system. This process allows administrators to update and manage apps separately from base images.