The company has also confirmed that landholder information is no longer available on the publicly on the ArcGIS platform, which was the source of the breach.
The company released an update late last week after initial investigations, and will now delve further into the breach to ensure it does not happen again.
“On December 18, Murray Irrigation identified a data security incident involving information held within the ArcGIS platform that is ordinarily confidentially and safely maintained,” the company said.
“Some of this information was unintentionally made publicly available.
“The incident was not a result of a malicious attack or attempt to access information by an external actor.
“Importantly, this incident has not included payment information, bank account information, passwords, WEX data or A-account information.
“Upon discovery of the breach, Murray Irrigation immediately locked down the ArcGIS platform and can confirm landholder data is no longer available publicly on the ArcGIS platform.
“We take the security and privacy of your information very seriously and want to explain what happened, what information was involved, and what steps you can take.
“MIL will also engage an external investigator to review the circumstances and assist to design a plan to prevent this from happening again.”
The breach involved several categories of landholder information including land registration numbers, landholding areas in hectares, chemical-free status, customer numbers, names, postal addresses, phone numbers and email addresses, water account balances, customer flags, and works supervisor names with accompanying phone numbers.
MIL said the breach did not impact all landholders, but for those who were MIL has provided a recommended response.
The company suggests anyone affected by the breach remain vigilant for suspicious emails, messages, letters, suspicious invoices or phone calls, and to double check any invoices received from Murray Irrigation.
You can confirm MIL’s bank account details at https://www.murrayirrigation.com.au/anz.
Landholders should also take great car to double check the sender email and timing of invoice before responding. If in doubt, please check directly with MIL on 1300 138 265.
Affected landholders should also avoid clicking on unexpected links or sharing personal information, and should consider changing passwords associated with your accounts.
ArcGIS is a geographic information system platform used to create, manage, analyse and map location-based data.
MIL uses this system to support delivery of its core services, with landholder information not ordinarily visible publicly.
Landholders requiring assistance or clarification can contact MIL on 1300 138 265. The company will provide updates as more information becomes available.
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