Truecaller

Personal data of 47.5 million Indians including their phone number, service provider, name, gender, city, email, and Facebook ID, among other things, was available on the dark web for $1,000 (₹75,000).

It was claimed to be sourced from the caller ID app Truecaller.

Truecaller denied any breach of its database.

Source: https://www.medianama.com/2020/05/223-truecaller-denies-database-breach/

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

"id": "tru2157291222",
"linkid": "truecaller",
"type": "Data Leak",
"date": "05/2020",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"

{'affected_entities': [{'customers_affected': 47500000,
                        'industry': 'Technology',
                        'name': 'Truecaller',
                        'type': 'Company'}],
 'data_breach': {'data_exfiltration': True,
                 'number_of_records_exposed': 47500000,
                 'personally_identifiable_information': True,
                 'sensitivity_of_data': 'High',
                 'type_of_data_compromised': ['phone number',
                                              'service provider',
                                              'name',
                                              'gender',
                                              'city',
                                              'email',
                                              'Facebook ID']},
 'description': 'Personal data of 47.5 million Indians including their phone '
                'number, service provider, name, gender, city, email, and '
                'Facebook ID, among other things, was available on the dark '
                'web for $1,000 (₹75,000). It was claimed to be sourced from '
                'the caller ID app Truecaller. Truecaller denied any breach of '
                'its database.',
 'impact': {'data_compromised': ['phone number',
                                 'service provider',
                                 'name',
                                 'gender',
                                 'city',
                                 'email',
                                 'Facebook ID']},
 'initial_access_broker': {'data_sold_on_dark_web': True},
 'investigation_status': 'Denied by Truecaller',
 'title': 'Truecaller Data Breach',
 'type': 'Data Breach'}