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yan Profile picture
@bcrypt
Oct 13, 2021 • 4 tweets • 3 min read • Read on X
i…. just received a children’s book about a rabbit who travels back in time to medieval europe and gets everyone hyped about blockchain ImageImageImageImage
some of the blockchain applications that the poor bunny serfs come up with: ImageImageImageImage
not impressed Image
anyway! you can get the book from amazon.com/Sphinxing-Rabb…. it may or may not be satire. ImageImage

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More from @bcrypt

yan Profile picture
Oct 18, 2024
PSA i can spoof any mit.edu email and it will pass all DKIM/SPF/etc. checks. here's an email i sent to myself pretending to be a famous MIT-affiliated podcaster - thanks gmail for auto-inserting the profile pic :)

MIT may fix this someday but in the meantime beware that it's trivial for any mit.edu account to send mail as any other mit.edu account!Image
i discovered this because i received a VERY convincing phishing email sent from "me". it turns out the attacker compromised another acct and was using it to send email as arbitrary users. that acct has been reported and suspended.mit.edu
no idea how many other legacy SMTP setups have the same issue but it's easy to detect in this case; just inspect the email headers and check if the "authenticated as" user is the same as the address in the "from" field. Image
Read 4 tweets
yan Profile picture
Apr 11, 2024
in january 2023, i had a simple ultrasound done at SimonMed. they sent me 4 bills totaling $5137 for it.

after a year of emails and phone calls, they finally admitted today that i only owed $140.53 and are mailing me a refund check!

here's how i did it 🧵 Image
2/ the first bill they sent was for $484.92, which i paid promptly. a few months later they sent a bill for $3378.69! i contacted my insurance and they sent me an updated EOB saying i only owed an additional $140.53.
3/ i emailed simonmed and attached the EOB. they said they would look into it. shortly after i got a new bill for $140.53 in the mail which i paid.

then i noticed the 484.92 amount wasn't counted in my insurance deductible so i contacted my insurance asking why
Read 10 tweets
yan Profile picture
Mar 6, 2022
when reading text in a non-native language & wondering how it's pronounced, u can enter this in devtools to have the browser pronounce it:

u=new SpeechSynthesisUtterance(getSelection().toString());u.lang='ru-RU';speechSynthesis.speak(u)

(replace 'ru-RU' with any BCP 47 tag)
assuming you've highlighted the text you want pronounced
in case u were wondering, the context menu text-to-speech feature doesn't work for this use case :)
Read 6 tweets
yan Profile picture
Sep 14, 2020
my friend sophie got fired from her job at Facebook and turned down a $64,000 severance package in order to leak this, so u better read it. buzzfeednews.com/article/craigs…
my biggest takeaway from this article is that FB could be doing a lot more to prevent politically-motivated bot activity, but they choose not to because they don't see any immediate revenue or PR benefit from doing so.
clarification: in order to leak this *internally* at Facebook
Read 4 tweets
yan Profile picture
Apr 9, 2020
why is it not common knowledge that u can make perfect japanese-style croissants from scratch with like 20min of effort?? thx @MimeeXu for enlightening me

(recipe in thread👇)
1/ mix 400g bread flour & 6g salt

microwave 240g milk for 30s
dissolve 8g dry yeast in it
add 50g honey
add 40g softened butter
mix together

mix wet mix into dry mix to form a well-combined dough

cover and rest overnight in fridge
2/
 1. form 12 balls of dough
2. roll each dough as shown below, wrapping a piece of butter and pinch of salt at the center of each roll
3. lay rolls on parchment paper and rest for 40min in a slightly warm place (ex: warming drawer of oven, or an oven with the light on)
Read 6 tweets
yan Profile picture
May 8, 2019
1/ in this thread i'll summarize some differences between SameSite=Lax (Chrome's new proposed default policy; see mikewest.github.io/cookie-increme… for more technical details) and third party cookie blocking (Brave's default policy unless user turns it off for a site)
2/ SameSite=Lax is more strict than 3p cookie blocking in the sense that it also blocks requests using unsafe HTTP methods. For instance if X contains a form that POSTs to Y, cookies to Y would be blocked by SameSite=Lax but not most 3p cookie block implementations AFAIK
3/ SameSite=Lax is less strict than 3p cookie blocking in the sense that a site can override it with SameSite=None. But unless a site does that, both SameSite=Lax and 3p cookie blocking will block 3rd party cookies on subresource requests.
Read 4 tweets

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