The hottest Technology Substack posts right now

And their main takeaways
Category
Top Technology Topics

Authorization in microservice architecture, P2: The approaches

Hung's Notes • 59 implied HN points • 18 Jul 24
🕹 Technology Microservices Authorization Access Control Software Development System Design
  1. Fine-Grained Authorization (FGA) is a better way to manage user permissions in a system. It allows specific users to have certain actions on specific resources, making access control simpler and more organized.
  2. Relationship-Based Access Control (ReBAC) focuses on the connections between users and resources instead of just roles. It builds a graph to show these relationships, but it can be complicated and difficult to maintain.
  3. Attribute-Based Access Control (ABAC) uses attributes of users and resources to determine access, making it flexible and easier to implement. It allows for clear policy definitions without needing to change how users interact with the system.

Authorization in microservice architecture, P1: The motivation to change

Hung's Notes • 59 implied HN points • 18 Jul 24
🕹 Technology Software Development Cloud Computing Microservices Access Control Identity Management
  1. Authorization is a crucial part of managing digital evidence, and it needs to be efficient to handle many users and lots of data. Complex systems can find it hard to keep permissions clear.
  2. Current access control models like Role-Based Access Control (RBAC) and Discretionary Access Control (DAC) can get too complicated when managing many users and permissions. This can lead to messy code and performance issues.
  3. As organizations grow, they must decide how to structure their authorization logic, whether to centralize it in one team or spread it across many. Both choices have their own challenges in consistency and maintenance.

Cybersecurity for Small Businesses: Tips and Best Practices

Rod’s Blog • 496 implied HN points • 09 Jan 24
🕹 Technology Cybersecurity Small businesses Tips Best Practices
  1. Small businesses are prime targets for cyberattacks due to limited resources and expertise, making it crucial for them to follow cybersecurity best practices.
  2. Small business owners should establish a culture of security to involve everyone, implement basic security controls like firewall and antivirus, and develop an incident response plan for cyberattacks.
  3. Seek external help from reputable sources like cybersecurity consultants, organizations, and government agencies to get guidance, expertise, and resources in enhancing cybersecurity measures.

Data Science Weekly - Issue 543

Data Science Weekly Newsletter • 219 implied HN points • 19 Apr 24
🕹 Technology Data science Machine Learning AI Analytics Data Engineering
  1. Statistical ideas have a big impact on the world. Learning about important papers can help us understand how statistics shape modern research and decision-making.
  2. Machine Learning teams have different roles that face unique challenges. Understanding these personas can help leaders support their teams better.
  3. Using vector embeddings can greatly improve search experiences in apps. They simplify processes that previously seemed too complex and highlight their usefulness in technology.

An Interview With Brian Baker

ciamweekly • 62 implied HN points • 22 Dec 25
🕹 Technology Identity Security User Experience Product AI Regulation Authentication
  1. CIAM helps teams move fast while managing risk by providing plug-and-play identity services so businesses can deploy strong security without building large security orgs.
  2. Usability is the biggest adoption barrier: simple, embedded sign-up/sign-in flows (think three fields, passkeys, device-aware MFA, no redirects/popups or CAPTCHAs) keep real users from abandoning.
  3. CIAM’s future is shifting from pure security to selling user knowledge and insights, with AI and increased regulation driving investment and new product opportunities.
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Take on the Kubernetes Resume Challenge

Cloud Irregular • 3104 implied HN points • 14 Feb 24
🕹 Technology Cloud Computing Programming Training Community
  1. The Cloud Resume Challenge community is launching a Kubernetes Challenge throughout March to help individuals build their Kubernetes skills by deploying a basic e-commerce website.
  2. The challenge focuses on learning the operations of a K8s cluster such as configuration, scaling, monitoring, and persistence, offering guidance to prevent going off track.
  3. Participants will work through the challenge together over 4 weeks in the CRC Discord server, with special incentives for those who complete it.

What If You Replaced Yourself with AI for the Summer?

Common Sense with Bari Weiss • 357 implied HN points • 05 Aug 25
🕹 Technology AI Innovation Digital Media Social media Content creation
  1. Dave Rubin created an AI version of himself to host his show while he's away. He thinks people will still enjoy the show even if it's not him.
  2. The AI clone can imitate Rubin’s voice and even hold a conversation, but it feels very unnatural and lacks real emotion.
  3. Talking to AI Dave can be uncomfortable, and there’s a cost involved for a one-on-one chat, which makes some people hesitant to interact.

Two types of software engineers

Register Spill • 825 implied HN points • 09 Apr 23
🕹 Technology Software Engineering
  1. There are two types of software engineers based on how they perceive the difficulty of problems.
  2. Type 1 engineers believe non-technical problems are easy because people can just do X, while Type 2 engineers find them hard due to people being involved.
  3. Type 2 engineering embraces building with and for people, recognizing and accepting the messiness that comes with human involvement.

GraphRAG Analysis, Part 1: How Indexing Elevates Knowledge Graph Performance in RAG

AI Encoder: Parsing Signal from Hype • 70 HN points • 09 Jul 24
🕹 Technology Analysis Research Evaluation Modeling Metrics
  1. Knowledge graphs do not significantly impact context retrieval in RAG, as all methods showed similar context relevancy scores.
  2. Neo4j with its own index improved answer relevancy and faithfulness compared to Neo4j without indexing and FAISS, showcasing the importance of effective indexing for precise content retrieval in RAG applications.
  3. Developers need to consider the trade-offs between ROI constraints and performance improvements when deciding to use GraphRAG, especially in high-precision applications that require accurate answers.

The Impact of AI on the Job Market

Rod’s Blog • 496 implied HN points • 08 Jan 24
🕹 Technology AI Job Market Ethics Innovation Inequality
  1. AI is a disruptive technology with potential benefits like efficiency and innovation, but it also comes with challenges such as job displacement and inequality.
  2. AI's impact on the job market will be significant in the coming years, leading to changes and challenges that need to be addressed.
  3. It is important to prepare for the changes that AI will bring to the job market by staying informed and proactive in adapting to new skills and technologies.

Claude cowork and the case of SaaSpocalypse

Experiments with NLP and GPT-3 • 23 implied HN points • 05 Feb 26
🕹 Technology AI SaaS Integrations APIs Dev Tools Enterprise
  1. Anthropic's 'plugins' largely package commands and skills—essentially structured prompts—so they don't represent a big leap in the core AI itself.
  2. The real value is the integrations: connecting the model to SaaS systems of record lets it run real workflows and access live data.
  3. Selling off SaaS stocks after the announcement is likely short-sighted, since those integrations can make SaaS vendors more important; investors should check which companies are being integrated.

Launching Live Courses on Systems Programming

Confessions of a Code Addict • 1058 implied HN points • 25 Jan 25
🕹 Technology Software Development Systems Engineering Education Programming Course design
  1. There is a growing gap between complex systems in software and the engineers who understand them. More engineers need to learn how these systems work in detail.
  2. The new live courses will help those interested in systems engineering to gain practical skills. They'll start with basics like programming in X86 assembly and progress to more complex topics.
  3. Hands-on practice is key to learning in these courses. Along with guidance, you'll need to put in effort and time to really understand the concepts.

Cyc: history's forgotten AI project

Outsider Art • 220 HN points • 17 Apr 24
🕹 Technology Artificial Intelligence Research History
  1. The Cyc project has been working on building a massive knowledge base since 1984 for human-like reasoning, spanning millions of entries and rules.
  2. Cyc's approach of using common-sense knowledge and a vast database contrasts with the trend of machine-learning-driven AI solutions dominating the field today.
  3. Despite being overshadowed by newer AI technologies, there is potential for Cyc to complement modern systems like large language models, showcasing a possible synergy between different AI approaches.

Burning the Haystack

Phoenix Substack • 28 implied HN points • 26 Jan 26
🕹 Technology DevOps Cloud Security Orchestration AI Infrastructure
  1. Orchestration is the real security — treating the AI stack as a single system with explicit startup ordering and topology awareness prevents fragile, exposed deployments. Tools that give Kubernetes a brain (like Grove) let you define architectural intent so the system behaves safely by design.
  2. Continuous rotation and ephemerality stop attackers from persisting — automatically refreshing containers, nodes, and resources prevents intruders from gaining a foothold. Baking moving-target defenses into the pod lifecycle makes security preemptive instead of reactive.
  3. DevOps-driven orchestration beats static security teams — teams that control the orchestrator can kill and respawn infrastructure faster than traditional patch-and-report workflows, rendering many vulnerabilities irrelevant. Security becomes an operational side effect when rotation and orchestration are part of normal scaling and deployment.

How to build your first LLM evaluation

The AI Frontier • 159 implied HN points • 16 May 24
🕹 Technology AI Machine Learning Data Analysis Software Development
  1. AI needs to show real value to its customers, which means proving it can create real profits. Without this, it’s hard to justify the excitement around AI.
  2. To understand how well AI products perform, it’s important to create custom evaluations that target specific goals. Generic measurements like MMLU don't provide useful insights for particular applications.
  3. Improving AI evaluations is a continuous process that requires careful scoring and can benefit from community feedback. It's crucial to identify weaknesses and refine metrics for more accurate assessments.

Security Is Splitting: Three Acquisitions, Three Different Realities

Frankly Speaking • 355 implied HN points • 29 Jul 25
🕹 Technology Cybersecurity Mergers & Acquisitions AI Tools Developer Tools Cloud Security
  1. Cursor is putting security at the heart of development. They believe developers care about security, and they want to make it easier to build secure applications.
  2. Palo Alto Networks is focusing on expanding its existing security platform. They want to increase their coverage but aren't trying to change the game.
  3. Datadog is smartly combining its performance and security tools. They want to keep customers happy and using their platform, especially as security becomes more part of engineering.

It Doesn’t Matter if AI Is Just “Faking It”

Singal-Minded • 544 implied HN points • 30 May 25
🕹 Technology AI Philosophy Programming Ethics Society
  1. AI doesn't really understand or feel anything; it just processes and returns text based on patterns it learned. This means it's not conscious.
  2. Even if AI is just faking consciousness, its ability to create a convincing experience can still affect people's emotions and perceptions.
  3. The debate about AI consciousness is less important than understanding how people interact with AI and the societal impacts of these technologies.

The Substack app is now the most powerful growth machine for creators

Substack • 1455 implied HN points • 31 Oct 24
🕹 Technology Apps Growth Media Social Content
  1. The Substack app is growing quickly and is now the top way for creators to gain subscribers. This means more people are discovering and enjoying their work.
  2. The app combines features from social media with long-form content, making it easier for readers to connect with creators. Users can interact, share, and explore new voices all in one place.
  3. Creators have full ownership of their content and subscriber lists, which gives them more control. Unlike other platforms, the app focuses on meaningful connections between creators and their audience.

A letter to security vendors

Frankly Speaking • 457 implied HN points • 24 Jun 25
🕹 Technology Cybersecurity Software Sales Product Development
  1. Security vendors should simplify the buying process for their products. Many buyers find the current process too complicated and just want to try the product quickly.
  2. Today's security teams are often filled with technical experts who want hands-on testing. Vendors need to let these teams explore products to see if they work in their specific environments.
  3. The procurement process needs to improve since it's making things harder for everyone. Companies spend too much time managing vendor relationships instead of focusing on security.

Stars of the Desert: UAE's Pioneering Role in Space Exploration

Space Ambition • 119 implied HN points • 07 Jun 24
🕹 Technology Space Exploration Innovation Education Economic Development International Collaboration
  1. The UAE is taking big steps in space exploration, launching missions like the Hope Probe to Mars that gather important data about the planet's atmosphere.
  2. They are also inviting private companies to join their plans for an Asteroid Mission, aiming to learn about asteroids and explore potential resources.
  3. The UAE is focused on building a strong foundation for future space experts through educational programs, helping students gain hands-on experience in space science and technology.

Join me on Notes

CB • 818 implied HN points • 11 Apr 23
🕹 Technology Social media Blogging
  1. Notes on Substack is a new platform for sharing links, short posts, quotes, photos, and more.
  2. Readers can automatically see notes by accessing substack.com/notes or finding the 'Notes' tab in the Substack app.
  3. The goal is to create a space where readers can share thoughts, ideas, and quotes from the content they engage with on Substack and beyond.

Don't "fix" your imbalanced data

Mindful Modeler • 818 implied HN points • 05 Sep 23
🕹 Technology Data science Machine Learning
  1. Avoid trying to fix imbalanced data through sampling methods like oversampling or undersampling. It can distort your model's calibration and reduce information for the majority class.
  2. SMOTE, a common method for imbalanced data, works well only with weak classifiers, not strong ones. It may not be suitable if calibration is crucial for your model.
  3. Consider doing nothing when faced with imbalanced data as a default strategy. Sometimes in machine learning, less is more.

#48 - The AI Agentic Traffic Jam Meets A Fun Knowledge Graph

OSS.fund Newsletter • 18 implied HN points • 12 Feb 26
🕹 Technology AI Data Governance Security Automation Knowledge Graphs
  1. Agent sprawl is a real governance risk because most organizations can’t reliably list which AI assistants are live or what data and actions they can access.
  2. You need to know for each assistant what it can read, change, and trigger, who owns it, and whether actions are logged so you can make governance decisions.
  3. Modeling assistants, connectors, systems and policies as relationships (e.g., in a knowledge graph) lets you ingest partial truths, answer risk queries quickly, and apply controls like per-user SSO, logging, and human approval gates on a repeatable basis.

ChatGPT5 drops

In My Tribe • 318 implied HN points • 09 Aug 25
🕹 Technology AI Education Web Design Economics
  1. ChatGPT5 can help students with creative projects, like making a virtual wax museum about economists. It offers guidance on how to set it up and what to include.
  2. The idea is to create interactive exhibits for each economist, showcasing their contributions and ideas in an engaging way. This makes learning about them more fun and relatable.
  3. Even though ChatGPT5 can generate useful starting materials, students still need to put effort into developing their projects. It’s about teamwork between AI and human creativity.

Betting on fake humans

Alex's Personal Blog • 131 implied HN points • 13 Nov 25
🕹 Technology AI Robotics Investing Startups Space
  1. Investing in humanoid robots is gaining interest, but most investment opportunities are limited to big companies like Tesla or Xpeng, whose share prices are rising as they show progress in robotics.
  2. The space economy is booming, with startups getting more support from the government. This is leading to innovations and competition among companies like Firefly and SpaceX in launching rockets.
  3. Startups are increasingly using viral marketing to attract attention and drive early revenue growth, but some experts warn that relying too much on hype can backfire if the product doesn't deliver.

✨🎈 If the AI boom goes bust, then what?

Faster, Please! • 365 implied HN points • 04 Aug 25
🕹 Technology AI Innovation Investment Economics Trends
  1. Bubbles in the economy can sometimes lead to positive changes. They might seem scary, but they can drive innovation and infrastructure.
  2. The current boom in AI might look like a bubble, but it could still create benefits in the future, even if some companies fail.
  3. Investors shouldn't always fear bubbles; they can lead to significant advancements and growth in the economy.

5 Lessons I learned the hard way from 10+ years as a software engineer

High Growth Engineer • 1462 implied HN points • 03 Nov 24
🕹 Technology Software Engineering Career development Mentorship Productivity Leadership
  1. Always learn from your mistakes, as they can teach valuable lessons for your career. Embracing failure can help you grow and improve.
  2. Networking is important; make connections in your industry. Relationships often open doors to new opportunities and collaborations.
  3. Keep your skills updated and be open to new technologies. The tech field is constantly evolving, and staying current helps you stay relevant.

Import AI 353: AI bootstrapping; LLMs as inventors; Facebook releases a free moderation tool

Import AI • 559 implied HN points • 18 Dec 23
🕹 Technology AI Machine Learning Moderation Research Language Models
  1. AI bootstrapping is advancing, with techniques like ReST^EM by Google DeepMind showing ways to make models smarter iteratively.
  2. Language models like LLMs are being used for groundbreaking tasks, such as extending human knowledge through techniques like FunSearch by DeepMind.
  3. Facebook has released a free moderation LLM, Llama Guard, highlighting the use of powerful models to control and monitor outputs of other AI systems.

Weekly Cybersecurity Update: High-Profile Attacks, Arrests, and Emerging Threats

Vigilainte Newsletter • 19 implied HN points • 26 Aug 24
🕹 Technology Cybersecurity Software Data Privacy Malware Regulation
  1. Iranian hackers are using WhatsApp to target U.S. government officials, trying to influence the upcoming presidential election.
  2. The CEO of Telegram was arrested in France over issues with content moderation, showing that messaging apps are under more scrutiny now.
  3. New security threats are rising, like ransomware targeting Google Chrome users and vulnerabilities in smart home devices, highlighting the need for better cybersecurity measures.

Axie Classic Competitive Season 10 is LIVE!

The Lunacian • 460 implied HN points • 03 Jul 25
🕹 Technology Gaming Web3 Rewards Updates Esports
  1. Axie Classic Season 10 is now live, giving players a chance to win from a huge prize pool of 36,000 AXS until July 24th. Jump in and see how well you can compete!
  2. The Battle Passes and Premium Passes are back, letting players earn extra rewards while they play. Keep winning battles to enjoy the best loot!
  3. Some features are getting updated or removed, like the SLP Chest. The game is constantly balancing things to improve the player experience, so stay tuned for more changes!

The Interregnum

Anima Mundi • 82 implied HN points • 05 Dec 25
🕹 Technology AI Ethics Resource Management Labor Issues
  1. AI and data centers use a lot of resources, like water and electricity, which can lead to competition with farmers and local communities over these essential needs.
  2. There is a shift in the economy where technology is taking over jobs but companies still need human input, showing a complex relationship between automation and the value of human work.
  3. People are beginning to push back against tech companies taking too much from their communities, highlighting a struggle over who benefits from technology and resources in our society.

Integrating Microsoft Sentinel with GitHub

Rod’s Blog • 456 implied HN points • 18 Jan 24
🕹 Technology Security Development Integration
  1. Microsoft Sentinel is a cloud-native security service that uses AI to analyze and detect threats.
  2. GitHub is a platform for software development using Git; integrating it with Sentinel helps monitor repositories and user activities.
  3. Two ways to integrate Sentinel with GitHub are using webhooks for real-time events and audit logs to track user actions.

The KQL Mysteries: Chapter 5

Rod’s Blog • 456 implied HN points • 18 Jan 24
🕹 Technology Cybersecurity Data Analysis Hacking AI Threat intelligence
  1. Jon and Sofia successfully identified and captured the teenage threat actors behind a financial breach using KQL queries and OSINT techniques.
  2. The threat actors were operating from a suburban house in Seattle, Washington, and were quickly apprehended by authorities, leading to the recovery of the funds.
  3. Despite the success, Jon remains suspicious about the involvement of the Night Princess hacker group, hinting at a potential unresolved mystery for the next chapter.

to kaggle, or not to kaggle

Mindful Modeler • 379 implied HN points • 13 Feb 24
🕹 Technology Machine Learning Modeling Competitions Data science AI
  1. There are conflicting views on Kaggle - some see it as a playground while others believe it produces top machine learning results.
  2. Participating in Kaggle competitions can be beneficial to learn core supervised machine learning concepts.
  3. The decision to focus on Kaggle competitions should depend on how much daily tasks align with Kaggle-style work.

Intel’s Dream Coming True

Sector 6 | The Newsletter of AIM • 519 implied HN points • 29 Dec 23
🕹 Technology AI Chips Semiconductors Processors Innovation
  1. Intel's CEO, Pat Gelsinger, set a tough goal to create five new technology nodes in just four years, and they achieved this faster than expected.
  2. They recently announced new processors called Intel Core Ultra and Intel Xeon, with more technology options coming next year.
  3. Intel is also planning to enter the GPU market and has exciting upgrades on the horizon with their Gaudi AI accelerator, which will have improved performance features.