Security & privacy, made clear

Field-tested, jargon-free guides on cybersecurity, VPNs, password managers and online privacy — researched and kept current by the Coppers.io editorial team.

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01

Cross-Site Scripting (XSS) Explained

Cross-site scripting (XSS) is a web vulnerability that lets an attacker inject malicious scripts into a legitimate website, which then run in the …
02

What Is a Firewall and Do You Need One?

A firewall is a security system that monitors network traffic and decides what to allow through and what to block based on a set of rules — acting as …
03

What Are MOOCs? Online Learning Explained

MOOCs — Massive Open Online Courses — are online courses designed for unlimited participation and open access, letting anyone with an internet …
04

What Is a Neural Network? A Plain-English Guide

A neural network is a computing system loosely inspired by the brain, built from layers of simple connected units that learn to recognise patterns by …
05

What Is Credential Stuffing (and How to Stop It)?

Credential stuffing is an attack where criminals take usernames and passwords leaked in one data breach and automatically try them on thousands of …
06

What Is a Zero-Day Vulnerability?

A zero-day is a software vulnerability the vendor doesn’t yet know about — meaning there’s no patch available, and defenders have had …