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Clubhouse uploads all your contacts

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Re: Clubhouse uploads all your contacts

#31

It would actually be a neat UI to show the person's contacts letting the person pick which one to try with a "match the hash" function that shows the one way hash generated and does a "ping" on the service to see if someone matches. Won't happen, but would be a fun UI to do.

It is worth nothing that hashing phone numbers without salt is basically useless, and you can't do a lookup like this if salted. North America only has 10M possible phone numbers so brute forcing or building a rainbow table is trivial. I don't know about other country codes but I presume the situation is pretty similar.

Signal does it https://support.signal.org/hc/en-us/articles/360007061452-Do...

Re: Clubhouse uploads all your contacts

#33
On a lighter note: when I joined.. I found out that I had a contact who has over 1000+ Clubhouse members in their phone contacts.

Turns out that it was the cab company’s number in SF that I used to have on speed dial. This was from pre-Uber days when we still had to hail a cab or call for one while at the city by the bay.

The cab company guy is hands down the one with the most Silicon Valley/Big Tech (phone) connections.

Data is awesome. But sometimes it’s just noise rather than signal.

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