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

TPRM report: https://scoringcyber.rankiteo.com/company/telstra

"id": "tel15346123",
"linkid": "telstra",
"type": "Data Leak",
"date": "05/2021",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"

{'affected_entities': [{'customers_affected': 10000,
                        'industry': 'Telecommunications',
                        'location': 'Australia',
                        'name': 'Telstra',
                        'type': 'Telecom Firm'}],
 'attack_vector': 'Unspecified',
 'data_breach': {'number_of_records_exposed': 10000,
                 'type_of_data_compromised': ['financial information',
                                              'contracts',
                                              'banking information']},
 'description': 'Australian telecom firm Telstra was hit by a cyber attack '
                'resulting in hackers gaining 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.',
 'impact': {'data_compromised': ['financial information',
                                 'contracts',
                                 'banking information'],
            'downtime': 'days',
            'systems_affected': ['website']},
 'motivation': 'Ransom',
 'threat_actor': 'Hacker Group',
 'title': 'Telstra Cyber Attack',
 'type': 'Data Breach'}