@mattab opened this Issue on May 7th 2018 Member

Recently we added a feature called Anonymise User ID which is actually only Pseudo-anonymise User ID the user id by doing a SHA1 + Salt. So we should rename the feature to "Pseudo-anonymise" to not be misleading.

You can see it here: https://media.githubusercontent.com/media/matomo-org/matomo/3.x-dev/plugins/PrivacyManager/tests/UI/expected-screenshots/PrivacyManager_privacy_settings_default.png

Note: the IP Address is properly anonymised (since we remove information and truncate the last bytes). Similarly the Ecommerce Order ID is also properly anonymised since there is random number in the value being hashed.

Follows up https://github.com/matomo-org/matomo/pull/12558 https://github.com/matomo-org/matomo/issues/12641

@mattab commented on May 7th 2018 Member

Some detailed background on Pseudoanonymising (actually: pseudonymization) here: https://iapp.org/news/a/looking-to-comply-with-gdpr-heres-a-primer-on-anonymization-and-pseudonymization/

This Issue was closed on May 7th 2018
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