struct _KALPC_SECURITY_DATA// Size=0x70
{
    struct _ALPC_HANDLE_TABLE * HandleTable;// Offset=0x0 Size=0x8
    void * ContextHandle;// Offset=0x8 Size=0x8
    struct _EPROCESS * OwningProcess;// Offset=0x10 Size=0x8
    struct _ALPC_PORT * OwnerPort;// Offset=0x18 Size=0x8
    struct _SECURITY_CLIENT_CONTEXT DynamicSecurity;// Offset=0x20 Size=0x48
    union _unnamed_370 u1;// Offset=0x68 Size=0x4
};