Telstra

Australian telecom firm Telstra was hit by a cyber attack result of which the hackers gained access to 10000 SIM cards.

The compromised information included financial information, contracts, and banking information of the SIM card users.

The company’s website has been offline for days after a hacker group said it infiltrated the company’s data systems and posted a disturbing ransom note on the dark web.

Source: https://www.news.com.au/technology/online/hacking/telstra-service-provider-hit-by-cyber-attack-as-hackers-claim-sim-card-information-stolen/news-story/2ff32b2e3634506882102e9c9d012994

"id": "TEL15346123",
"linkid": "telstra",
"type": "Data Leak",
"date": "05/2021",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"