

About us
LFDT Meetup groups have an informal relationship with LF Decentralized Trust and make up a key part of the LFDT ecosystem. Participation in a LFDT Meetup group is open to anyone--employees of a LFDT member company, LFDT contributors and developers, and people just passionate about distributed trust technology.
For more information about LFDT, please visit:
http://lfdecentralizedtrust.org/
For LFDT Meetup Guidelines, please visit:
http://meetups.lfdecentralizedtrust.org
To stay in touch with the latest LFDT news, sign up to our weekly newsletter:
https://www.lfdecentralizedtrust.org/newsletter-archive
Upcoming events
12

Scam2Prompt: A Scalable Framework for Auditing Malicious Scam Endpoints in LLMs
·HybridKTH Campus Room 1440, Huvudbyggnad (D & E), 114 28 Stockholm, Stockholm, SEZhiyang Chen (University of Toronto & ETH Zurich) will give a seminar on 04 Sep 2026 at 15:00 in KTH Room 1440 (Henrik Eriksson) and on Zoom.
Title
Scam2Prompt: A Scalable Framework for Auditing Malicious Scam Endpoints in Production LLMsAbstract
Large language models are increasingly used for software development, but their generated code can sometimes incorporate malicious URLs and endpoints originating from scam websites, even in response to seemingly benign developer requests. In this talk, I will present Scam2Prompt, a scalable framework for auditing this behavior in production LLMs. Scam2Prompt starts from known malicious websites and automatically constructs realistic developer-style prompts to test whether LLMs reproduce scam infrastructure in generated code. Using this framework, we build Innoc2Scam-bench, a renewable benchmark of 1,377 prompts, and evaluate several state-of-the-art production LLMs. Our results show that malicious endpoint generation remains prevalent across recent models. Interestingly, the framework also uncovered previously unknown active scam websites, 62 of which were subsequently confirmed and added to MetaMask’s scam database. More broadly, this work highlights a security risk beyond explicit harmful prompting: LLMs may unintentionally propagate unsafe web content when assisting users with executable code.Bio
Zhiyang Chen is currently visiting ETH Zurich until Feb 2027, working with Prof. Zhendong Su, He is a final-year PhD candidate at the University of Toronto advised by Prof. Fan Long. His research focuses on blockchain and smart contract security, and more recently, AI security and efficient agentic systems. More broadly, he has also collaborated on research involving compilers and program analysis, as well as CUDA kernel generation. Zhiyang is also an active contributor to open-source software such as SQLite. More information about his work can be found at https://jeffchen006.github.io/.You can also join by zoom at https://kth-se.zoom.us/j/64568739111
3 attendees- Network event

Introducing the IPRAM Lab for Tokenized Regulated Asset Markets
·OnlineOnline112 attendees from 150 groupsThe tokenisation of regulated real-world assets has led to multiple institutional implementations of the same financial instruments, each operating on its own infrastructure with few shared patterns for how those infrastructures interoperate. As a result, tokenised assets remain confined to the environment they were issued in, accessible only to counterparties already inside the same institutional perimeter.
The IPRAM Lab (https://github.com/LFDT-IPRAM) develops open implementation patterns for the interoperation of tokenised real-world regulated financial assets and the markets they participate in. This session introduces the lab's mission, scope, and the initial interoperability challenges it aims to address. All interested parties are invited to join!
ZOOM LINK TO JOIN: https://zoom.us/my/hyperledger.community.3?pwd=UE90WHhEaHRqOGEyMkV3cldKa2d2dz09
Please note: This event is being shared with our entire global community. If you're interested in this content but can't attend the event live, feel free to sign up and we will send you a link to the recording after the meetup is over.
1 attendee from this group - Network event

Introducing PDP-Connect: Building An Open Standard For Personal Data Portability
·OnlineOnline87 attendees from 150 groupsAn online session introducing the Personal Data Portability Protocol (PDPP), following its public announcement at the Global Digital Collaboration Conference in Geneva. This is the online counterpart to Geneva for everyone who could not be there: what the specification defines (user-authorized access to specific personal data, built on OAuth 2.0 and RFC 9396), what the August working sessions changed in the draft, and how to take part in the public comment period. Format is roughly 40 minutes of presentation and demonstration, followed by 20 minutes of questions.
Find out more at: https://github.com/PDP-Connect
Zoom Meeting Link: https://zoom.us/my/hyperledger.community.3?pwd=UE90WHhEaHRqOGEyMkV3cldKa2d2dz09
Please note: This event is being shared with our entire global community. If you're interested in this content but can't attend the event live, feel free to sign up and we will send you a link to the recording after the meetup is over.
- Network event

VeltoraCore - The Optimization Layer for Fragmented Markets
·OnlineOnline97 attendees from 150 groupsJoin us for a discussion about the new VeltoraCore lab that is building a pair-coin, system-agnostic optimization engine that jointly coordinates user execution and LP participation in a single feasibility framework. A lightweight Proof-of-Optimization (PoO) mechanism cryptographically commits optimized batch outcomes to external system states, enabling verifiable cross-system settlement. Simulations on the ETH–USD pair show superior retained execution and materially lower user fees relative to benchmarks, while delivering liquidity-provider returns higher with reduced volatility.
This is a great opportunity to talk to the developers about what they're building and to learn how to get involved if this sounds interesting.
More about the VeltoraCore lab is at: https://github.com/LF-Decentralized-Trust-labs/veltoracore
Please note: This event is being shared with our entire global community. If you're interested in this content but can't attend the event live, feel free to sign up and we will send you a link to the recording after the meetup is over.
Past events
350

