Anyone else seeing these and knowing more about how the transfer of such personal data happens between those partner and what kind of partners those are?
This is usually easy to find out with a data information request. * Info EDÖB: https://www.edoeb.admin.ch/edoeb/de/home/datenschutz/ueberblick/das-auskunft... * Formular: https://mritzmann.github.io/letter/ I send such requests regularly, mainly as soon as I receive email newsletters of Swiss companys or offline post. Below are a few stories about how my address and e-mail data regularly change hands. Making sure that doesn't happen is very difficult.
First Story, 2016: * I received a newsletter for health insurance companies. The data was sold by "Zattoo Europa AG". After all: The newsletter could be cancelled as usual, after that it was quiet. Second Story, 2017: * I have received advertising from "Swisscard" (belongs to Credit Swiss and American Express). According to the information request, the data was purchased from the company Schober AG. * Then I sent a request for data information to Schober. However, Schober only gave an incomplete answer to the request. The data is supposed to be provided by third parties (names were not mentioned) "in agreement with their terms and conditions" and was then supplemented with public information. Third Story, 2019: * The Swiss Federation of Bakers and Confectioners has sold my address to Swissmilk (Farmers' Association). Swissmilk then sent me their free advertising magazine by post. * I've moved. Swissmilk has received my new address via Localsearch (Swisscom subsidiary). They run a service (product name: "Multisource Database") to update wrong and old addresses. According to the request for information, localsearch has received my new address from Sunrise and Swisscom.