Oh good the FBI recovered the Colonial Pipeline ransom by tracing the wallet. Ransomware is solved!
Narrator voice: ransomware was not solved.
Looks like ransomware operators are going to have to do more than, well, the barest minimum in order to protect the privacy of their payments.
I wonder if the Colonial hackers tried to protect the funds in that wallet, or if they just decided to let it go.
This sounds like some pretty sophisticated detective work.
Maybe my sarcasm didn’t come across.
“We looked at the blockchain and saw that they just moved the money around in exact amounts and didn’t even try to hide what they were doing.”
This is like mounting the antlers of a buck on your wall, and then bragging that you hit it with your car.
Our secret blockchain tracing tool is… addition.
Some might call it “grossly incompetent”. I call it 8-dimensional chess.
Right now the entire Federal law enforcement community is high-fiving themselves and buying contracts to do blockchain tracing, on the assumption that they’ve actually found a sustainable approach that works against ransomware.
And yes, there it is. They’re going after “the entire ecosystem”. This is gonna go really great.

• • •

Missing some Tweet in this thread? You can try to force a refresh
 

Keep Current with Matthew Green

Matthew Green Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!

PDF

Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

More from @matthew_d_green

7 Jun
The FSB’s encryption software seems to be pretty much in character. krebsonsecurity.com/2021/06/advent…
I know this is a bit of a stereotype, but why is Russian crypto always so weird?
“We don’t use a normal random number generator, we use a gerbil connected to a hot cup of tea. Also use our ciphers where the S-Boxes are ‘random’ meaning they actually aren’t.”
Read 4 tweets
3 Jun
Dear researchers: the hard part of problems like “traceability” is not the part where you build a mass surveillance system. Building mass surveillance systems is *easy*.
The hard part is building systems that don’t utterly shatter the security guarantees that the private system offered, and don’t have caveats like “obviously this can be abused, stopping that is future work.”
When I go out to see what our research community has been doing in this area, I expect them to understand what makes this research problem hard. Not to find slides like this one.
Read 7 tweets
2 Jun
Good article by WhatsApp on why content “traceability” is so hard. faq.whatsapp.com/general/securi…
The post makes this point informally, but it really seems like there’s an impossibility result in this problem: it’s impossible to have privacy and traceability at the same time without some very specific requirements.
There’s this idea that you can have content sent among small groups where there’s privacy of who is forwarding what, but when a piece of content goes “viral” suddenly we can trace the content back to its originator.
Read 8 tweets
17 May
Interesting story about how Apple is moving encryption keys to China. nytimes.com/2021/05/17/tec…
Ok, I have lots of things to say about encryption keys and hardware security modules. But forget all that for a second. WTF Apple.
“A legal shield from American law.”
Read 16 tweets
13 May
This article about end-to-end encryption and authorities’ desire to perform real-time content scanning is very well written and I hope you’ll read it. It also makes me pretty angry.
For nearly a decade, technologists have been engaged in a good-faith debate with policymakers about the need for “exceptional access” — basically a way to bypass encryption when police get a warrant. 1/
This is a really hard problem. How do you build a system that can keep your data encrypted against hackers, but still allows (even local) police to decrypt it when they want. Some co-authors wrote about this. mitpress.mit.edu/blog/keys-unde… 2/
Read 12 tweets
17 Apr
“New: In 2010, KPN commissioned a study into the behavior of Huawei in the mobile network. The findings were so serious that it was feared for the continued existence of KPN Mobiel if the conclusions were to be leaked”
I can’t access the reporting (paywall and in Dutch) or the actual report. But it sounds like Huawei retained admin access to eavesdrop on calls in the Dutch network, against explicit agreements.
I’ve seen this pattern of story, and I know that it will be hailed by some as “the smoking gun proof of malice” and others will point out that the Huawei code was just a smoking pile of sloppiness, and really: it doesn’t matter.
Read 8 tweets

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!

Follow Us on Twitter!

:(