Olha Stefanishyna – Medium

Olha Stefanishyna

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Olha Stefanishyna

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Mar 12

Go for Developers: Intro

Why learn Go when AI can code and review? Find out why fundamentals is more critical than ever in the age of AI.

A minimalist abstract technical illustration featuring a network of intersecting circuit lines, nodes, and geometric overlays in a palette of beige, white, and soft gray.

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Olha Stefanishyna

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Feb 5

Jeffrey Epstein’s Legal Loopholes and the Mechanisms of Normalizing Evil

Why attempts to justify exploitation as “freedom of choice” undermine the foundations of human rights.

Cover image for article Jeffrey Epstein’s Legal Loopholes and the Mechanisms of Normalizing Evil

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Olha Stefanishyna

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Jan 11

DNSSEC: Build a Chain of Trust to Stop DNS Attacks

Understand how DNSSEC uses cryptographic signatures to prevent cache poisoning, MitM attacks, and hijacking.

Cover image: a heavy metal chain with a central fiber-optic link.

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Olha Stefanishyna

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Nov 9, 2025

Who Wrote the Manual on Modern Harassment

Today, many people know and some experienced coordinated online or offline harassment campaigns. What most don’t realize is the end goal of…

Who Wrote the Manual on Modern Harassment

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Olha Stefanishyna

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Jul 12, 2025

PTSD: When Dragon Doesn’t Scare

RU translation is available in my blog https://raw-input.ostefani.dev/ru/articles/ptsd-when-dragon-does-not-scare

PTSD: When Dragon Doesn’t Scare

Olha Stefanishyna

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Jun 14

Go for Developers: Errors, Interfaces and Methods

Methods, interfaces, and error handling under the hood

A minimalist abstract digital artwork representing nodes connected with lines in shades of beige and gray.

Olha Stefanishyna

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May 30

Hardware Implants: When Reinstalling OS Won’t Help

When people talk about digital security, they mostly discuss encryption and keeping secrets safe. Don’t click random links, use encryption…

Cover image. A close-up illustration of a small rogue chip soldered onto a circuit board among legitimate components.

Olha Stefanishyna

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May 27

Ubuntu Desktop explained

Installing Ubuntu is easy: download an image and follow instructions. But after installing it, you face a completely different system…

Ubuntu Desktop explained

Olha Stefanishyna

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May 19

The Price Of One Victory

My mother never drank or took drugs (per my knowledge). Nevertheless, she developed a mental disorder, and at a certain point, I…

The Price Of One Victory

Olha Stefanishyna

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Mar 22

Go for Developers: Defined Types, Pointers and Functions

Types, pointers and functions. This part is where the language starts to feel like Go.

A minimalist abstract digital artwork representing nodes connected with lines in shades of beige and gray

Olha Stefanishyna

Olha Stefanishyna

JS engineer building MERN apps with WebGL graphics. Nature lover seeking witnesses to a serious crime. Open letter: https://ostefani.dev/seeking-justice

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