KUALA LUMPUR: The documents from the Royal Malaysian Navy which were uploaded on the Dark Web were obsolete, says the Navy.
It said it was aware of the leak but stressed that it did not involve documents that would disrupt its readiness and operations.
"However, the Navy will investigate the cause and source of the information leak.
"The information technology and communication system of the Navy remains solid under the purview of the Cyber Defence Operation Centre (CDC).
"We are looking at the matter seriously, and we will not compromise with those involved," said the Navy in a statement on Monday (Aug 17).
Singapore's The Straits Times reported that about 70 documents from the Navy were uploaded to the Dark Web last month.
The daily claimed that the uploaded information was understood to be from several sources that had hacked the military personnel's email accounts, but said it was not known if the uploader's intention was to sell or share the data.
ST said the uploaded documents included information on the number of troops at some Malaysian naval and army bases last year during a holiday; requirements for naval examination; a list of senior and junior officials of the Malaysian navy who had been charged with corruption, taking drugs and being absent without leave.
It also said one of the documents included a US diplomatic letter last July that detailed a US Navy ship's radar equipment and the frequencies used when it asked for the ship to be docked at a port in Sabah in August last year.