NT-Sec-Desc (Security Descriptor) is a LDAPSyntaxes for Microsoft Active Directory with an OID of AND 1.2.840.113556.1.4.907

NT-Sec-Descs is the representation of a data structure containing the security information associated with a securable object. Security Descriptor identifies:

Applications use NT-Sec-Desc to set and query an object's security status. The Security Descriptor is used to guard access to an object as well as to control which type of auditing takes place when the object is accessed. The Security Descriptor format is specified in MS-DTYP section 2.4.6; a string representation of Security Descriptors, called Security Descriptor Description Language SDDL, is specified in MS-DTYP section 2.5.1.

NT-Sec-Desc is an Octet String

NT-Sec-Desc is defined in Draft-armijo-ldap-syntax-00 as:

Object-Security-Descriptor: 1.2.840.113556.1.4.907
        Encoded as an Octet-String (OID]

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