"every time we use apps, hundreds of shadowy entities are receiving personal data about our interests, habits, and behaviour. This information is used to profile consumers, which can be used for targeted advertising, but may also lead to discrimination, manipulation and exploitation. These practices are out of control and in breach of European data protection legislation. The extent of tracking makes it impossible for us to make informed choices about how our personal data is collected, shared and used" A new study from the Norwegian Consumer Council believes "the online advertising industry is behind comprehensive illegal collection and indiscriminate use of personal data". Have you stopped to consider what that free app might be doing in the background and how it passes device and user identifiers off to a chain of third parties? The technical traffic analysis report from mnemonic provides an in-depth investigation of 10 popular mobile apps on the Android platform from period trackers to dating apps and is well worth a read: https://fil.forbrukerradet.no/wp-content/uploads/2020/01/mnemonic-security-test-report-v1.0.pdf
Regards
Caute_cautim