About: http://webisa.webdatacommons.org/148355981

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Because of the complexity, it is difficult to establish a coordinated security policy across all layers, and device types of the network, and particularly difficult to maintain such a system even if it could be successfully implemented.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com