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An incident impacting 5M accounts and private information on Twitter

privacy.twitter.com

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Re: An incident impacting 5M accounts and private information on Twitter

#51

Earlier quoted context omitted.

Would be super interested in hearing more about where you could find such a deal _with a physical SIM_. Seems far too good to be true.

Many "IOT" providers give physical numbers for almost no cost, and they provide physical SIM cards for the service. The aren't VOIP so aren't blocked by twilio, etc for use with Twitter and other services.

Any examples of providers?

Re: An incident impacting 5M accounts and private information on Twitter

#52

>If you operate a pseudonymous Twitter account, we understand the risks an incident like this can introduce and deeply regret that this happened. To keep your identity as veiled as possible, we recommend not adding a publicly known phone number or email address to your Twitter account. I'm so sick of this kind of victim blaming, you're forced to add a phone number to use twitter.

Tip: If you email(anonymously ofc) twitter support that you do not have a phone number to receive the OTP for verification during account creation, they generally approve your request.

Re: An incident impacting 5M accounts and private information on Twitter

#53
post #8

> In January 2022, we received a report through our bug bounty program > This bug resulted from an update to our code in June 2021 Does this mean the problem existed for 7 months and nobody at Twitter noticed until they received a bug report?

Given they didn't think it was exploited they must have pretty poor logging and analytics around that part of their infrastructure. Someone managed to abuse it millions of times and they didn't know about it even after they'd fixed it and knew exactly where to look for abuse.

Curious what kind of logs/analytics would you add and watch to catch something like this?

Re: An incident impacting 5M accounts and private information on Twitter

#54
post #29
post #18

Earlier quoted context omitted.

In Germany and other countries you have to show government ID to get a GSM number. Phone numbers are like bank accounts: strongly linked to official name and identity. This advice is bullshit.

But you can abandon a number after you registered on Twitter. Doesn't help against agencies but against scrappers

Doesn't that make account takeovers easy?

Re: An incident impacting 5M accounts and private information on Twitter

#55

>If you operate a pseudonymous Twitter account, we understand the risks an incident like this can introduce and deeply regret that this happened. To keep your identity as veiled as possible, we recommend not adding a publicly known phone number or email address to your Twitter account. I'm so sick of this kind of victim blaming, you're forced to add a phone number to use twitter.

My twitter account does not have a phone number attached

Re: An incident impacting 5M accounts and private information on Twitter

#56

>If you operate a pseudonymous Twitter account, we understand the risks an incident like this can introduce and deeply regret that this happened. To keep your identity as veiled as possible, we recommend not adding a publicly known phone number or email address to your Twitter account. I'm so sick of this kind of victim blaming, you're forced to add a phone number to use twitter.

They seem to be recommending that you use an unlisted phone number. That seems like a good idea.

Re: An incident impacting 5M accounts and private information on Twitter

#57
post #29
post #18

Earlier quoted context omitted.

In Germany and other countries you have to show government ID to get a GSM number. Phone numbers are like bank accounts: strongly linked to official name and identity. This advice is bullshit.

But you can abandon a number after you registered on Twitter. Doesn't help against agencies but against scrappers

My very recent experience contradicts this. I removed my number and was immediately locked out until I added it back.

Re: An incident impacting 5M accounts and private information on Twitter

#58

>If you operate a pseudonymous Twitter account, we understand the risks an incident like this can introduce and deeply regret that this happened. To keep your identity as veiled as possible, we recommend not adding a publicly known phone number or email address to your Twitter account. I'm so sick of this kind of victim blaming, you're forced to add a phone number to use twitter.

> you're forced to add a phone number to use twitter.

is that true for the desktop web client?

Re: An incident impacting 5M accounts and private information on Twitter

#59

Earlier quoted context omitted.

Rate limiting is not useful meaningfully. For a service we ran we regularly had botnets with 100k+ IP addresses making one request an hour to endpoints, which absolutely decimated the backend but hit no limits at all that a real user wouldn't also trigger. Even with a couple of requests an hour you could enumerate the entire phone number space in a very short period with that botnet.

I guess I was thinking more like "limiting the number of attempts" than "limiting the number of attempts over time" -- take time out of the equation (but then NAT causes trouble). But even so, you're right: as the threat landscape approaches the size of the result set, it breaks down no matter what.

That has some problems. If you limit the total number of attempts globally then the feature is effectively disabled, every botnet and script will blow through the attempt budget and real users can't use it. Global limits and IP address limits are not useful, and because we're assuming the user is unauthenticated (using the password reset), we have no other way of distinguishing good traffic.

Re: An incident impacting 5M accounts and private information on Twitter

#60

>If you operate a pseudonymous Twitter account, we understand the risks an incident like this can introduce and deeply regret that this happened. To keep your identity as veiled as possible, we recommend not adding a publicly known phone number or email address to your Twitter account. I'm so sick of this kind of victim blaming, you're forced to add a phone number to use twitter.

> you're forced to add a phone number to use twitter. is that true for the desktop web client?

It was for me.

When I created an account, they blocked it 30 seconds later (before I had done literally anything) and would only unblock it upon me adding a phone number. Google suggested that this was common practice by them at the time.

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