kennwhite

@kennwhite@mastodon.social

cryptography • neuro • cloud • biscuits
ORD-DCA-NYC-BCN ✈️

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Belkanell, to random French
@Belkanell@mastodon.social avatar

Ma première aurore boréale. Je suis autant ému que la première fois que j’ai nagé avec une tortue sauvage 🥰

Photo prise de mon jardin. Ciel de nuit, rose fluo. On aperçu les rayons de l’aurore boréale.
Photo prise de mon jardin. Ciel de nuit, rose fluo. On aperçu les rayons de l’aurore boréale.

dangillmor, (edited ) to random
@dangillmor@mastodon.social avatar

The Internet is amazing, Exhibit 855,093: www.explainxkcd.com

https://www.explainxkcd.com/wiki/index.php/Main_Page

gsuberland, to random
@gsuberland@chaos.social avatar

that minecraft RNG lattice attack thing is bonkers, I love it

gsuberland,
@gsuberland@chaos.social avatar

I did not have "minecraft will finally get you to understand what lattice reduction is and why it is useful" on my 2024 bingo card.

zackwhittaker, to random
@zackwhittaker@mastodon.social avatar

More: Security researcher Sam “Chick3nman” Croley told TechCrunch how he figured out that the encrypted records in the 73 million AT&T leaked data set were customer account passcodes.

Croley said it was not necessary to crack the encryption cipher to unscramble the passcode data, but that the encrypted passcodes could be unscrambled based on surrounding information in the leaked data set.

More: https://techcrunch.com/2024/03/30/att-reset-account-passcodes-customer-data/

adrianco, to Nvidia
@adrianco@mastodon.social avatar

I’m staying in San Jose for a few days for the event. The keynote is this afternoon, lots of cool new high performance computing stuff will be announced.

adrianco,
@adrianco@mastodon.social avatar

Todays announcements included building a GPU chip that’s twice the size of what’s currently possible by joining two max size chips together via a 10 Terabyte/s chiplet interface, adding memory and having 208 billion transistors in the package. Interfacing that Blackwell GPU via 1.8 terabyte/sec interface to 576 other GPUs. For non-techies, these are ludicrously large numbers. Blackwell is named after African American mathematician David Blackwell. https://en.wikipedia.org/wiki/David_Blackwell

neurovagrant, to random
@neurovagrant@masto.deoan.org avatar

Hey it's a great thing that a bunch of critical, sensitive US government agencies, offices, and contractors moved to the Microsoft cloud, given that Microsoft can't keep it secure.

Who woulda thunk it...

https://techcrunch.com/2024/03/08/microsoft-ongoing-cyberattack-russia-apt-29/

lhn, to random
@lhn@mastodon.online avatar

fuck it I’m dropping a 0day

image/png

PadreSJ, to random
@PadreSJ@twit.social avatar

End of day

mattblaze, to random
@mattblaze@federate.social avatar

Virtually every cryptographer alive today has either read David Kahn's The Codebreakers or learned the field from someone who did. We lost him last week.

I first met David about 25 years ago. You'll read much about his influence. I will remember also that he was a remarkably kind gentleman.

https://wapo.st/47Weerz (WaPo gift link)

zackwhittaker, to random
@zackwhittaker@mastodon.social avatar

Absolutely gutted to see talented journalists laid off from TechCrunch today. I deeply appreciate all the folks who reached out to me; the security desk is unaffected. But my friends are incredible editorial minds and helped to build a brilliant place on the internet, and you should hire them. (1/4)

trailofbits, to random

Today, we are disclosing LeftoverLocals, a vulnerability that allows listening to LLM responses through leaked GPU local memory created by another process on Apple, Qualcomm, AMD, and Imagination GPUs (CVE-2023-4969) https://buff.ly/48RDP68

Our PoC can listen to another user's llama.cpp session across process or container boundaries. LeftoverLocals can leak ~5.5 MB per GPU invocation on an AMD Radeon RX 7900 XT running a 7B model on llama.cpp, adding up to ~181 MB for each LLM query. https://buff.ly/41WKaLf

LeftoverLocals impacts the security posture of GPU applications, especially LLMs and ML models that run on impacted GPU platforms. It highlights that many parts of the ML development stack, specifically GPUs, have unknown security risks. Read more: https://buff.ly/3SjHYu0

We encourage you to reach out if you are affected by these issues or want our help discovering more like them in your company. Our team has new and novel expertise to attack and secure ML systems, and we are here to help. https://buff.ly/40W1jUV

zackwhittaker, to random
@zackwhittaker@mastodon.social avatar

Always read @lhn: The key thing here is removing your phone number (yes, you can do that now).

https://www.wired.com/story/sec-mandiant-x-two-factor-settings/

LukaszOlejnik, to privacy
@LukaszOlejnik@mastodon.social avatar

Issues of data protection and human dignity of generative AI processing and creations are an important one. My complaint about OpenAI's data processing. It concerns input and output, access to information, and technology design.
Context/writeup: https://blog.lukaszolejnik.com/ai-llms-gdpr-complaint-and-human-dignity/

The fullcomplaint is here: https://lukaszolejnik.com/stuff/OpenAI_GDPR_Complaint_LO.pdf?ref=mastodon
The supplement is here https://lukaszolejnik.com/stuff/OpenAI_GDPR_Complaint_supplement.pdf?ref=mastodon

april, to random
@april@macaw.social avatar

TIL that the US government runs an official dad joke database 👀

https://fatherhood.gov/for-dads/dad-jokes

lhn, to random
@lhn@mastodon.online avatar

An even more cryptographically private approach Apple (and Google and Tile etc) could take to reduce AirTag stalking/abuse while still maximizing the anonymity of legitimate devices. Also includes choice bonus content of @matthew_d_green just loving cryptography so much https://www.wired.com/story/apple-airtag-privacy-stalking-cryptographic-solution/

lhn, to random
@lhn@mastodon.online avatar

Law enforcement finally moved against the ransomware group Alphv on Tuesday, but even just the takedown itself was a bit of a journey https://www.wired.com/story/alphv-blackcat-ransomware-doj-takedown/

zackwhittaker, to random
@zackwhittaker@mastodon.social avatar

Breaking: Feds claim seizure of notorious Alphv/BlackCat ransomware gang’s dark web leak site.

FBI and U.K.'s National Crime Agency, who are involved in the takedown, have not responded to a request for comment.

More: https://techcrunch.com/2023/12/19/alphv-blackcat-ransomware-seizure/

zackwhittaker,
@zackwhittaker@mastodon.social avatar

Justice Department and Europol confirm their involvement in the operation.

According to the government’s search warrant, the FBI said it engaged with a “confidential human source” close to the ransomware gang, who provided agents with credentials to access ALPHV/BlackCat’s affiliate panel used for managing the gang’s victims.

FBI subsequently released a decryption tool that it says has already enabled more than 500 ALPHV victims to restore their files.

More: https://techcrunch.com/2023/12/19/alphv-blackcat-ransomware-seizure/

matthew_d_green, to random
@matthew_d_green@ioc.exchange avatar

New article in Lawfare by Apple’s Ivan Krstić explaining the need for encrypted cloud backup. https://www.lawfaremedia.org/article/personal-data-in-the-cloud-is-under-siege.-end-to-end-encryption-is-our-most-powerful-defense

matthew_d_green, to random
@matthew_d_green@ioc.exchange avatar

Meta is launching end-to-end encryption for direct messages on Facebook Messenger and Instagram this week. https://www.wsj.com/tech/meta-to-start-fully-encrypting-messages-on-facebook-and-instagram-a936c4f9

LukaszOlejnik, to random
@LukaszOlejnik@mastodon.social avatar

China’s Alibaba shut down $15 billion quantum computing research effort. https://www.hpcwire.com/2023/11/30/alibaba-shuts-down-its-quantum-computing-effort/

arstechnica, to random
@arstechnica@mastodon.social avatar

Broadcom cuts at least 2,800 VMware jobs following $69 billion acquisition

Broadcom hasn't said how many people will be affected, or much of anything else.

https://arstechnica.com/information-technology/2023/12/broadcom-cuts-at-least-2800-vmware-jobs-following-69-billion-acquisition/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social

kennwhite, to random

Adversarial AI is only getting better. “We discover a prompting strategy that causes the model to diverge from its standard dialog-style of generation. […] Once the model diverges, its generations diverge to memorization: some generations are copied directly from the pre-training data! […] Using only $200 USD worth of queries to ChatGPT (gpt-3.5-turbo), we are able to extract over 10,000 unique verbatim-memorized training examples.”
https://not-just-memorization.github.io/extracting-training-data-from-chatgpt.html

fj, to random
@fj@mastodon.social avatar

“Today Apple announced it will be the first and largest customer of the new Amkor manufacturing and packaging facility being developed in Peoria, Arizona. Amkor will package Apple silicon produced at the nearby TSMC fab, where Apple is also the largest customer. “
https://www.apple.com/newsroom/2023/11/apple-announces-expanded-partnership-with-amkor-for-silicon-packaging/

nixCraft, (edited ) to random
@nixCraft@mastodon.social avatar

A new kind of AI risk I haven’t thought about yet

paulknightly, to random
@paulknightly@mstdn.social avatar

Christopher Nolan says that there is a danger in having content only exist in a streaming format, that physical media is the only way to hedge against its disappearance from public access in the future.

I've long advocated for owning music in particular (as much as ownership exists these days) in part from the financial standpoint of paying into a collection that isn't anchored to a streaming platform. Hadn't thought about the existential issue of streaming-only content

https://www.msn.com/en-us/movies/news/christopher-nolan-says-streaming-only-content-is-a-danger-and-can-get-taken-down-guillermo-del-toro-calls-owning-physical-media-a-responsibility/ar-AA1kfSfB

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