If you have Chrome sync turned on, you might not be surprised to find out that Chrome syncs far more data about you and what you browse to its servers than you might expect. Go to https://chrome.google.com/sync?hl=en-GB to see what data Chrome’s uploaded for you.
To get rid of this, scroll down to the bottom of the page ’till you see this:
Hit ‘RESET SYNC’ to remove your data. You should probably still turn sync off though…
The easiest way to merge information about individuals is by having a common attribute that can be used to identify and then link information that shares a common feature – email address, phone number, social security number etc.
In the ‘Help people connect with you’ section make sure these settings are turned off. If you want people to have a (slightly) harder task of finding you with your phone number you should also turn this setting off.
Chrome has a very complicated data model that appears to offer you granular control of your data and how it is managed/saved by Google.
In reality, Chrome’s privacy settings are complicated by design to try and obscure how Google is collecting your data and to effectively limit how you are able to manage that data collection and what Google does with your data .
Google makes money by ‘personalising’ your experience. In practice, this means Google aggregates as much of your online and offline activity as it can in order to profile you as accurately as it can. The more accurate the profile, the better it can personalise your experience, and the more accurate the ads Google can target you with… and the more $£€ Google makes (off of you).