A system characterised in that the system provides unattended authorization to a requesting software application to access resources, the system comprising: - a credentials manager module in a credentials manager node for authorizing access to said resources by said requesting software application and for providing credentials for access to said resources by said requesting software application; - a requestor node on which said requesting software application is resident, said requestor node including a memory and a processor and executing a server password manager module resident thereon, said server password manager module being configured to: receive a request for access to said resources of said requesting software application; determine fingerprint data uniquely identifying said requestor node, said fingerprint data being derived from configuration information of said requestor node, said fingerprint data being for uniquely identifying said requestor node to said credentials manager module; create a request package for transmission to said credentials manager module, said request package containing said request and data uniquely identifying said requesting software application to said credentials manager module; encrypt said request package using cryptographic keys previously generated by said credentials manager module, said cryptographic keys being specifically for communications between said credentials manager module and said requestor node; and transmit said request package and said fingerprint data to said credentials manager module, said fingerprint data authenticating said requestor node and thereby authenticating said request package prior to decryption by said CM module, wherein said server password manager module and said requesting software application are previously authenticated by and registered with said credentials manager module. - a credentials manager module in a credentials manager node for authorizing access to said resources by said requesting software application and for providing credentials for access to said resources by said requesting software application; - a requestor node on which said requesting software application is resident, said requestor node including a memory and a processor and executing a server password manager module resident thereon, said server password manager module being configured to: receive a request for access to said resources of said requesting software application; determine fingerprint data uniquely identifying said requestor node, said fingerprint data being derived from configuration information of said requestor node, said fingerprint data being for uniquely identifying said requestor node to said credentials manager module; create a request package for transmission to said credentials manager module, said request package containing said request and data uniquely identifying said requesting software application to said credentials manager module; encrypt said request package using cryptographic keys previously generated by said credentials manager module, said cryptographic keys being specifically for communications between said credentials manager module and said requestor node; and transmit said request package and said fingerprint data to said credentials manager module, said fingerprint data authenticating said requestor node and thereby authenticating said request package prior to decryption by said CM module, receive a request for access to said resources of said requesting software application; determine fingerprint data uniquely identifying said requestor node, said fingerprint data being derived from configuration information of said requestor node, said fingerprint data being for uniquely identifying said requestor node to said credentials manager module; create a request package for transmission to said credentials manager module, said request package containing said request and data uniquely identifying said requesting software application to said credentials manager module; encrypt said request package using cryptographic keys previously generated by said credentials manager module, said cryptographic keys being specifically for communications between said credentials manager module and said requestor node; and transmit said request package and said fingerprint data to said credentials manager module, said fingerprint data authenticating said requestor node and thereby authenticating said request package prior to decryption by said CM module,