Nielsen is currently investigating a ransomware attack which has affected the Australian TV Audience Measurement data centre since Tuesday.
While the data is currently unavailable, Nielsen has confirmed households are still collecting that data.
Nielsen said in a statement to B&T: “Nielsen has become aware of an unexpected disruption relating to the Australian TV Audience Measurement (TAM) data centre environment. This disruption is derived from a ransomware attack in which Nielsen was the victim.
“As a result, TV ratings data remains unavailable. Nielsen can confirm, however, that all households are still collecting viewing data and that referencing sites have not been impacted.
“Nielsen’s global and local infrastructure teams took the steps to contain the incident, launched a robust investigation and are currently working to resolve the issue as fast as possible. We will be sure to keep the industry informed as new information on the matter becomes available.”
The ransomware attack is somewhat of a blow to the networks, particularly Seven whose Big Brother grand finale aired on Tuesday and Wednesday night.
Meanwhile on Monday night, 10’s MasterChef had a significant 1.5million metro viewers tuned in to watch Emelia Jackson being crowned the winner.
Sunday night saw 911,000 viewers watch coach Guy Sebastian’s younger brother Chris Sebastion win Nine’s The Voice.
