Published: 2025-11-20 | Origin: Hacker News

In April 2026, Element will implement a significant security update that will require all devices to be verified in order to send and receive end-to-end encrypted messages. This change, stemming from a Matrix specification update, aims to enhance the security of communications and ensure users can trust that messages received are genuinely from their intended contacts. Currently, unverified devices can raise concerns over potential account compromises or impersonation risks. The new verification process will eliminate these uncertainties, ensuring that only verified devices can communicate securely.

Published: 2025-11-19 | Origin: /r/programming

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Published: 2025-11-19 | Origin: Hacker News

In a post by Andrew on November 19, 2025, he discusses his experience in an Introduction to Algorithms course at UW, which uniquely requires attendance tracking through a platform called TopHat. This system uses a four-digit numerical code to confirm students' presence, but to combat the common trick of having friends enter their codes for them, TopHat offers a "secure attendance" feature. This feature uses geolocation to confirm student presence, raising concerns about the accuracy of location tracking, especially given the

Published: 2025-11-19 | Origin: /r/programming

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Published: 2025-11-19 | Origin: Hacker News

IT-security researchers from the University of Vienna and SBA Research discovered a significant privacy vulnerability in WhatsApp's contact discovery system, enabling the enumeration of 3.5 billion accounts globally. This issue was responsibly reported to Meta, which has since mitigated the vulnerability. The research highlights the necessity for ongoing independent security assessments of major communication platforms and the dangers related to the centralization of instant messaging services. The researchers revealed that it was possible to query over 100 million phone numbers per hour, confirming extensive account

Published: 2025-11-19 | Origin: Hacker News

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Published: 2025-11-19 | Origin: Hacker News

On November 18, 2025, the NTSB reported that a loose wire in the electrical system of the 984-foot containership Dali caused a blackout, leading to the vessel colliding with the Francis Scott Key Bridge in Baltimore on March 26, 2024. This incident resulted in the bridge's collapse and the deaths of six highway workers. Investigators found that improper wire-label banding prevented the wire from being connected correctly, triggering the blackouts and loss of propulsion and

Published: 2025-11-19 | Origin: Hacker News

The author expresses frustration with the lingering romanticism surrounding Lisp Machines, which were specialized computers designed to run Lisp programming languages. The original Symbolics company, a major player in this market, went bankrupt in 1993, signaling the decline of Lisp Machines, which had begun years earlier. By the late '80s, mainstream RISC machines were outperforming Lisp Machines, leading to their obsolescence. The author notes that despite some nostalgia for these machines due to their innovative development environments, it's time

Published: 2025-11-19 | Origin: /r/ruby

The content describes an integrated monitoring and security platform that offers comprehensive visibility into the health and performance of an organization's stack, which includes infrastructure, applications, and logs. Key features include: - **Observability**: Provides end-to-end visibility of system health and performance metrics. - **Security**: Enables real-time threat detection, prioritization, and response, covering code and cloud security, as well as threat management. - **Digital Experience**: Focuses on optimizing front-end performance to enhance user

Published: 2025-11-19 | Origin: /r/programming

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Published: 2025-11-19 | Origin: Hacker News

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Published: 2025-11-19 | Origin: Hacker News

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Published: 2025-11-19 | Origin: /r/programming

User feedback is crucial in design, but it's important to interpret it wisely as it may lead to confusion if taken too literally. Feedback often indicates problems rather than providing clear solutions. A lesson learned from past experiences is that chasing every user comment can complicate products and create uncertainty within teams. Users' verbal descriptions of their experiences often differ from their actual actions, leading to misunderstandings and misinterpretations. Additionally, feedback often comes from the most vocal users—either highly frustrated or very engaged—rather than

Published: 2025-11-19 | Origin: /r/programming

A distributed actor is defined as a single-threaded state unit available to applications within a distributed system. Despite their utility, many developers are unfamiliar with this concept, including the author, who took time to appreciate the actor model while working on Dapr, an open-source project featuring distributed actors. Notable implementations of distributed actors include Microsoft Orleans, which introduced virtual actors for .NET, Akka for the JVM ecosystem, and Cloudflare Durable Objects, although they don't explicitly use the term "actor." Swift

Published: 2025-11-19 | Origin: /r/programming

The author, a professor and researcher in operating systems, discusses his hobby of developing MINIX and shares insights on the future of operating systems. He outlines two fundamental designs: monolithic systems and microkernel systems. - **Monolithic Systems**: These older systems consist of a single executable running in kernel mode, incorporating all components like process and memory management (examples include UNIX and MS-DOS). - **Microkernel Systems**: In contrast, microkernel systems operate with most components running as separate

Published: 2025-11-19 | Origin: Hacker News

The European Union is easing its regulatory stance on Big Tech due to intense pressure from the industry and the U.S. government, compromising key aspects of its General Data Protection Regulation (GDPR) and delaying important artificial intelligence (AI) regulations. The proposed changes would simplify cookie permissions within GDPR, making it easier for companies to share anonymized data and enabling AI firms to use personal data for training while adhering to other GDPR requirements. Additionally, the implementation of stringent rules from the upcoming AI Act will be postponed

Published: 2025-11-19 | Origin: /r/programming

In a recent reflection, Michael Lynch praises the programming book *Crafting Interpreters* by Bob Nystrom for its clear and engaging introduction, which effectively draws readers in. Lynch highlights the introduction's strong opening statement expressing excitement about the shared journey, noting that while it may seem generic, it is subtly impactful. He emphasizes that the subsequent lines directly address the reader's interests by outlining what they will learn—implementing interpreters and designing worthwhile programming languages. The introduction not only answers critical questions

Published: 2025-11-19 | Origin: /r/ruby

"On Rails" is a podcast that invites Rails developers to discuss real-world technical challenges, solutions, and architectural choices related to building applications with Rails. Hosted by Robby Russell from Planet Argon, the show features episodes with experienced engineers who delve into strategies for building and scaling Rails applications. In a recent episode, Robby talks with Kayla Reopelle, a lead software engineer at New Relic, about the concept of observability for Rails developers. They discuss how observability extends beyond debugging

Published: 2025-11-19 | Origin: /r/programming

The content discusses the tools UV and Ruff, both of which are built using Rust and designed to enhance code quality and dependency management in Python projects. UV serves as a faster, simpler alternative to traditional Python package managers like pip, virtualenv, Poetry, and pipenv. It handles project creation, dependency resolution, and script execution with remarkable speed, thanks to its use of a parallel SAT solver for dependency management and global package caching. This means it can complete operations in milliseconds, significantly reducing setup times compared

Published: 2025-11-19 | Origin: Hacker News

The content provides navigation instructions for an interactive book, including how to move between chapters, search for specific content, and access help. It also notes that the book was first published in November 2020 and was written by Nicholas Nethercote and others. Additionally, it mentions the presence of source code.