Avaddon hackers steal SIM card data from Telstra service provider

Avaddon hackers steal SIM card data from Telstra service provider

A Melbourne-based service provider called Communication, which is a platinum partner of telecom giant Telstra has become a victim of a series of cyber-attacks including DDoS attacks.

Hackread.com can confirm that hackers from the Avaddon ransomware gang are claiming to have gained access to “tens of thousands” of SIM cards. The Australian telecom company supplies phone numbers and cloud services on behalf of Telstra.

A post that Hackread.com identified on the official dark web website of the Avaddon ransomware gang (Image: Hackread.com)

Telstra Confirmed the Attack

Telstra has confirmed that one of its “dealers” has suffered a cyberattack. The company’s representative acknowledged the security breach claiming that “high level” customer data may be at risk. However, the rep disregarded the claim that sensitive data is hacked.

“We’ve been in contact with the dealer and been told some ‘high level’ Telstra business customer information, such as mobile phone numbers, may have been accessed from its order fulfillment system,” said a Telstra spokesman.

“We are getting more information but don’t believe any sensitive personal information was included. Our specialist cybersecurity team is working closely with the dealer to help them resolve the issue,” Telstra spokesman told Australia media.

Company Website Went Offline

After the attack, the website of Schepisi Communications went offline for several days. At the time of publishing this article, the website was showing the following message on its home page: