Milliman, Inc.

The Washington State Office of the Attorney General reported a data breach involving Milliman, Inc. on January 12, 2024. The breach, which occurred from May 29, 2023 to May 30, 2023, involved unauthorized access affecting a total of 2,879 residents. The compromised information included names, social security numbers, and dates of birth. This incident highlights the vulnerability of personal data and the importance of robust cybersecurity measures to protect sensitive information.

Source: https://www.atg.wa.gov/data-breach-notifications | https://data.wa.gov/resource/sb4j-ca4h.json?id=15644

TPRM report: https://www.rankiteo.com/company/milliman

"id": "mil202072625",
"linkid": "milliman",
"type": "Breach",
"date": "5/2023",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"

{'affected_entities': [{'customers_affected': 2879,
                        'name': 'Milliman, Inc.',
                        'type': 'Company'}],
 'attack_vector': 'Unauthorized Access',
 'data_breach': {'number_of_records_exposed': 2879,
                 'personally_identifiable_information': True,
                 'sensitivity_of_data': 'High',
                 'type_of_data_compromised': ['names',
                                              'social security numbers',
                                              'dates of birth']},
 'date_detected': '2024-01-12',
 'date_publicly_disclosed': '2024-01-12',
 'description': 'The Washington State Office of the Attorney General reported '
                'a data breach involving Milliman, Inc. on January 12, 2024. '
                'The breach, which occurred from May 29, 2023 to May 30, 2023, '
                'involved unauthorized access affecting a total of 2,879 '
                'residents, with compromised information including names, '
                'social security numbers, and dates of birth.',
 'impact': {'data_compromised': ['names',
                                 'social security numbers',
                                 'dates of birth']},
 'references': [{'date_accessed': '2024-01-12',
                 'source': 'Washington State Office of the Attorney General'}],
 'title': 'Data Breach at Milliman, Inc.',
 'type': 'Data Breach'}