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A comment on Google promised its contact tracing app was completely private, but it wasn’t. Parent comment

Re:Google promised its contact tracing app was completely pr... by zachberger on Tuesday April 27, 2021 @11:17AM (#26957078)
I have had it installed since it became available in California. I received one exposure notification on April 11th from an exposure on April 1, which seems too late to be useful. I immediately tested and it was negative.
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Re:Google promised its contact tracing app was completely pr... by zachberger on Tuesday April 27, 2021 @11:20AM (#26957127)
And here is what the exposure notification looks like: https://imgur.com/a/qyLHxUQ
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Re:Google promised its contact tracing app was completely pr... by PossiblyDog on Tuesday April 27, 2021 @04:17PM (#26960964)
Why do you think this was too late?

14 days is the the CDC's window for contact tracing and self-isolation, based on how long it takes symptoms to show up after exposure. This seems in line with that.

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Re:Google promised its contact tracing app was completely pr... by zachberger on Saturday May 08, 2021 @01:56AM (#27084331)
11 days after the exposure, if contracted I'd have a ~95% chance of already showing symptoms and exposing others. There is a higher chance I'd have realized I have COVID before the exposure notification system told me I was exposed. So not too helpful.

But if my thinking is wrong, please correct me.

[1] - As per the CDF on pg. 5 of https://bmjopen.bmj.com/content/bmjopen/10/8/e039652.full.pd...

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