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Thanks for chiming in. So from the FAQ : https://brave.com/faq/#all-ads-blocked https://brave.com/faq/#all-ads-blocked > Each ad request is anonymous, and exp

by seren 7y ago

Thanks for chiming in. So from the FAQ : https://brave.com/faq/#all-ads-blocked https://brave.com/faq/#all-ads-blocked > Each ad request is anonymous, and exposes only a small subset of the user’s preferences and intent signals to prevent “fingerprinting” the user by a possibly unique set of tags. It means that advertisers still get some feedback on the "intent signals" of the users that have seen their ads ? So it is private in the sense you cannot be uniquely identified but some of your intents are somewhat leaky ?

jonathansampson 7y ago
Not quite, I think that FAQ item needs to be updated. The model works like this: The user opts-in to Brave Rewards/Ads. This kicks off a machine-learning model that begins to study the user's habits and interests. On a daily basis, the user downloads a regional ad catalog (as to other Brave users in their region). This catalog contains numerous ad options, which your device studies for relevance. If/when your device identifies an ad within the catalog that might be of interest to you, it displays the ad as an OS notification. At this time, 70% of the ad revenue is deposited into your in-situ wallet. At this point, the user has made absolutely no contact with an advertiser. If the user chooses to click on the ad, it is opened in its own tab in the Brave Browser. This tab, like all others, is subject to Brave's default security/privacy settings. No third party trackers, etc. The advertiser will know that you are interested in their product/service, because you clicked the ad. But no other information about you is given to them; only what can be inferred from standard first-party browsing online. Brave aims to keep your data private, and on-device. It is never leaked to us, or anybody else. You are sovereign over your data, and you decide with whom it is shared. That's our goal, always.
- seren 7y ago
  Thanks that's very clear and helpful.
- tomcam 7y ago
  Man, just copy and paste that answer into the FAQ as is. Nailed it.
- CrendKing 7y ago
  > At this time, 70% of the ad revenue is deposited into your in-situ wallet. Brave needs to know when and which ad has been shown to the user, to deposit that ad's revenue right? That means whenever an ad is shown "locally", it still needs to contact Brave server with user's identity behind of some encryption. Brave then shows the proof of ads being presented to users to ad provider to get revenue. Sure, the user's interests are studied locally (and inefficiently because it runs on user's computer), but the result feeds back to Brave. How does that improve privacy? At some point, Brave may either leak the data accidentally or decide to sell the data, because the data, which capture each uniquely identifiable user's interests, is valuable. Or am I misunderstanding something here?
  - sexisfun 7y ago
    How do you purposefully leak data and get paid for it without a paper trail?
  - BrendanEich 7y ago
    We use a variant of privacy pass (Chaum blind signatures): https://github.com/brave-intl/challenge-bypass-ristretto https://github.com/brave-intl/challenge-bypass-ristretto The key is no user identifiable events and no ability to link events for a given user together. Advertisers want authentic aggregate results — they don’t want (at first or in bulk, also not legal in many places) user ids. We built an authentic but anonymous ad system.

by seren 7y ago

jonathansampson 7y ago

Not quite, I think that FAQ item needs to be updated. The model works like this: The user opts-in to Brave Rewards/Ads. This kicks off a machine-learning model that begins to study the user's habits and interests. On a daily basis, the user downloads a regional ad catalog (as to other Brave users in their region). This catalog contains numerous ad options, which your device studies for relevance. If/when your device identifies an ad within the catalog that might be of interest to you, it displays the ad as an OS notification. At this time, 70% of the ad revenue is deposited into your in-situ wallet. At this point, the user has made absolutely no contact with an advertiser. If the user chooses to click on the ad, it is opened in its own tab in the Brave Browser. This tab, like all others, is subject to Brave's default security/privacy settings. No third party trackers, etc. The advertiser will know that you are interested in their product/service, because you clicked the ad. But no other information about you is given to them; only what can be inferred from standard first-party browsing online. Brave aims to keep your data private, and on-device. It is never leaked to us, or anybody else. You are sovereign over your data, and you decide with whom it is shared. That's our goal, always.

seren 7y ago
Thanks that's very clear and helpful.
tomcam 7y ago
Man, just copy and paste that answer into the FAQ as is. Nailed it.
CrendKing 7y ago
> At this time, 70% of the ad revenue is deposited into your in-situ wallet. Brave needs to know when and which ad has been shown to the user, to deposit that ad's revenue right? That means whenever an ad is shown "locally", it still needs to contact Brave server with user's identity behind of some encryption. Brave then shows the proof of ads being presented to users to ad provider to get revenue. Sure, the user's interests are studied locally (and inefficiently because it runs on user's computer), but the result feeds back to Brave. How does that improve privacy? At some point, Brave may either leak the data accidentally or decide to sell the data, because the data, which capture each uniquely identifiable user's interests, is valuable. Or am I misunderstanding something here?
- sexisfun 7y ago
  How do you purposefully leak data and get paid for it without a paper trail?
- BrendanEich 7y ago
  We use a variant of privacy pass (Chaum blind signatures): https://github.com/brave-intl/challenge-bypass-ristretto https://github.com/brave-intl/challenge-bypass-ristretto The key is no user identifiable events and no ability to link events for a given user together. Advertisers want authentic aggregate results — they don’t want (at first or in bulk, also not legal in many places) user ids. We built an authentic but anonymous ad system.