As millions deal with the repercussions of the Optus data breach, Telstra has reportedly been dealing with a smaller breach of its own.
Up to 30,000 names and email addresses of past and present Telstra staff were uploaded to the same forum where the Optus breach was shared last week.
On Saturday, Telstra group executive for transformation, communications and people Alex Badenoch said the data breached dated back to 2017, and was of a third party that had provided a rewards program for Telstra staff.
The released information contained both first and last names, along with work email addresses of 30,000 people who had worked for the telecoms giant before 2017.
12,800 of the names leaked were still employed by Telstra.
“We understand this may cause some anxiety to our people, particularly in the current climate of heightened awareness around cyber security,” Telstra said in a statement to staff.
“If you wish to find out more about the breach, or to find out if your email address was exposed, please contact our cyber team … In the meantime, we remind you as always to remain vigilant about any unexpected communications.”
Telstra is reportedly working with the third party to determine the cause of the breach.