Telco company Swisscom confirmed it has suffered a data breach that affected roughly 800,000 of its customers, roughly 10% of the Swiss population. Unauthorized parties gained access to data in Autumn, the attackers accessed the customers records using a sales partners credentials. The data accessed included the first and last names, home addresses, dates of birth and telephone numbers of Swisscom customers; contact details which, for the most part, are in the public domain or available from list brokers. Most of the exposed data are related to the mobile services subscribers.”]
Source: https://securityaffairs.co/wordpress/68854/data-breach/swisscom-data-breach.html