• 6 Posts
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Joined 1 year ago
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Cake day: June 15th, 2023

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  • Basically with passkeys you have a public/private key pair that is generated for each account/each site and stored somewhere on your end somehow (on a hardware device, in a password manager, etc). When setting it up with the site you give your public key to the site so that they can recognize you in the future. When you want to prove that it’s you, the website sends you a unique challenge message and asks you to sign it (a unique message to prevent replay attacks). There’s some extra stuff in the spec regarding how the keys are stored or how the user is verified on the client side (such as having both access to the key and some kind of presence test or knowledge/biometric factor) but for the most part it’s like certificates but easier.






  • They definitely knew it would impact their ad business but I think what did it was the competition authorities saying they couldn’t do it to their competitors either, even if they were willing to take the hit on their own services.

    Impact on their business (bold added): https://support.google.com/admanager/answer/15189422

    • Programmatic revenue impact without Privacy Sandbox: By comparing the control 2 arm to the control 1 arm, we observed that removing third-party cookies without enabling Privacy Sandbox led to -34% programmatic revenue for publishers on Google Ad Manager and -21% programmatic revenue for publishers on Google AdSense.
    • Programmatic revenue impact with Privacy Sandbox: By comparing the treatment arm to control 1 arm, we observed that removing third-party cookies while enabling the Privacy Sandbox APIs led to -20% and -18% programmatic revenue for Google Ad Manager and Google AdSense publishers, respectively.





  • To be fair to Microsoft, this was a local model too and encrypted (through Bitlocker). I just feel like the only way you could possibly even try to secure it would be to lock the user out of the data with some kind of separate storage and processing because anything the user can do can be done by malware run by the user. Even then, DRM and how it gets cracked has shown us that nothing like that is truly secure against motivated attackers. Since restricting a user’s access like that won’t happen and might not even be sufficient, it’s just way too risky.







  • https://support.google.com/maps/answer/14169818

    Update Google Maps to use Timeline on your device

    Important: These changes are gradually rolling out to all users of the Google Maps app. You’ll get a notification when an update is available for your account.

    Location History is now called Timeline, and you now have new choices for your data. To continue using Timeline, you must have an up-to-date version of the Google Maps app. Otherwise, you may lose data and access to your Timeline on Google Maps.

    Timeline is created on your devices.

    Basically they’re getting rid of the web version because they’re moving the data to being stored on local devices only. Part of this might be because they got a lot of flak for stuff like recording location data for people who went near reproductive health clinics and other sensitive things. They can’t be forced to respond to subpoenas for data if they don’t have the data and can thus stay out of it, so I wouldn’t necessarily say it’s all that altruistic on their part.