HackerNoon Tech Stories: 2026/03/21

March 2026

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On This Day In History

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Stories Published

Archive: March 21st, 2026

Discovering the tech stories that shaped the day.

kavitha

kavitha@kavitha

https://cdn.hackernoon.com/images/2jqChkrv03exBUgkLrDzIbfM99q2-s1823gb.jpeg

Going Beyond Spring: Exploring Vert.x for Reactive Java Development

Min Read6 days Ago

Hacktivist

Hacktivist@hacktivist

https://cdn.hackernoon.com/images/a-skyscraper-at-night-neon-kafblv99uhaikbr0jga7gngx.png

Phineas Fisher: Securing Critical Infrastructure Against Hacktivists

Min Read6 days Ago

Gabor Koos

Gabor Koos@hacker5295744

https://cdn.hackernoon.com/images/eQHzh6rz7ETBHLjs0KzCl1Dooqp2-6x83eu1.jpeg

A Guide on How to Develop and Benchmark the Same Feature in Node and Go

Min Read6 days Ago

Noonification

Noonification@noonification

https://cdn.hackernoon.com/images/hackernoon_newsletter_428_f54snywffqyzsmsh3s1h245t.png

The HackerNoon Newsletter: What Is Threshold Encryption? (3/21/2026)

Min Read6 days Ago

Drmike

Drmike@drmike

https://cdn.hackernoon.com/images/La10M2PXCsPrhqN7rQq2OFZEVwT2-0z82097.jpeg

What Is Threshold Encryption?

Min Read6 days Ago

MattLeads

MattLeads@mattleads

https://cdn.hackernoon.com/images/pL08BO3ouKNkhrqPjjNqbI6Myh73-r283eoc.jpeg

How to Build a Hybrid Passkey Strategy in Symfony 7.4: Navigating Beyond the Passwordless Fortress

Min Read6 days Ago

Ademola Balogun

Ademola Balogun@ademolabalogun

https://cdn.hackernoon.com/images/SpyyNn0DiuTGW5f8Hz85qIlQtBq1-1f83i3t.png

Why RAG Is Failing at Complex Questions (And How Knowledge Graphs Fix It)

Min Read6 days Ago

Naresh Waghela

Naresh Waghela@nareshwaghela

https://cdn.hackernoon.com/images/WRKXsk2LTlf1y3hllka3QO7Bfvy2-a823ebw.jpeg

Optimizing Local LLM Inference for 8GB VRAM GPUs

Min Read6 days Ago

Arun Kumar Gattu Sambaiah

Arun Kumar Gattu Sambaiah@agattus

https://cdn.hackernoon.com/images/NEQp8eJsRQOzV9aQcMmHBa2QPP92_ft6vtcto.jpeg

Preventing LLM Hallucinations in High-Stakes Banking Operations

Min Read6 days Ago

Michael Chukwube

Michael Chukwube@codelynx

https://cdn.hackernoon.com/images/ogLjQOI8STUK2kIzi4UX9fhl1za2-t903bz1.jpeg

Crypto Is No Longer About Coins, It’s About Financial Infrastructure

Min Read6 days Ago

Astounding Stories

Astounding Stories@astoundingstories

https://cdn.hackernoon.com/images/inspector-n-a-hat-in-a-small-town-resolving-murder-iwan442cj6j0scwmx47ltazm.png

Blackmail and the Dagger Clues

Min Read6 days Ago

Ramya

Ramya@ramyav

https://cdn.hackernoon.com/images/P33KyhVWZ1QiAIO4GvOAnc7YAvB3-9oe3fdv.png

The WAF Said Nothing. The IDS Said Nothing. The ML Model Said "Block This." Here's How We Built That

Min Read6 days Ago

@samshtech

https://cdn.hackernoon.com/images/sinW25rWovdN38P2ArzdPSCP3hi1-qd039z8.jpeg

The Importance of Scalable IT Infrastructure for Growing Businesses

Min Read6 days Ago

Hutch

Hutch@hutchpd

https://cdn.hackernoon.com/images/B5zxAr16jiPV7pP9UETc1atP9k93-rq03c0i.jpeg

Positronic Variables in C#: Teaching State to Argue with the Future

Min Read6 days Ago

Astounding Stories

Astounding Stories@astoundingstories

https://cdn.hackernoon.com/images/the-unfolding-mystery-of-fernly-park-gjcsc54bjnpl64x9m4hsoahc.png

The Unfolding Mystery of Fernly Park

Min Read6 days Ago

Techbeat

Techbeat@techbeat

https://cdn.hackernoon.com/images/hackernoon_newsletter_145_kis6c6vql84h7vaa7uryygn4.png

The TechBeat: How to Master Any Skill: Explaining the Biological Shortcut (3/21/2026)

Min Read7 days Ago

Jose

Jose@joseh

https://cdn.hackernoon.com/images/eQHzh6rz7ETBHLjs0KzCl1Dooqp2-6m83ei3.jpeg

The 5 Best Suits In Marvel's Spider-Man 2: Peter Parker Version

Min Read7 days Ago

Hacktivist

Hacktivist@hacktivist

https://cdn.hackernoon.com/images/cyber-defenses-abstract-jogq7bbaqzhu1yjdlrbe1mbp.png

Phineas Fisher: MITRE ATT&CK Analysis & ICS Defenses

Min Read7 days Ago

Astounding Stories

Astounding Stories@astoundingstories

https://cdn.hackernoon.com/images/the-night-roger-was-murdered-ddtdovauxhg2kj05kzf1w7m1.png

The Night Roger Ackroyd Was Murdered

Min Read7 days Ago

TreeMap

TreeMap@treemap

https://cdn.hackernoon.com/images/autumn-trees-u0kvud26io7otngcvf0xksml.png

LZ-Trees: Context-Free Grammar Enumeration via Subtree Reuse

Min Read7 days Ago