Clear, field-tested guides and tutorials on staying secure and private online — from the Coppers.io editorial team.
Strong password security in 2026 comes down to a short list of habits: use a long, unique password for every account, store them in a password manager, turn on multi-factor authentication, and adopt passkeys where you can. Get those right and you’ve closed off the ways accounts actually get broken into. Here’s the complete, practical checklist — and why each step matters.
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Prompt engineering is the skill of writing clear, well-structured instructions that get the best possible results from AI tools — and the basics come down to giving context, being specific, and iterating. The same AI can produce a vague, generic answer or a genuinely useful one depending entirely on how you ask. Here are the fundamentals that turn mediocre prompts into great ones, with simple techniques you can use today.
Cross-site scripting (XSS) is a web vulnerability that lets an attacker inject malicious scripts into a legitimate website, which then run in the browsers of other people who visit it. Those scripts can steal session cookies, hijack accounts, deface pages, or redirect users — all while appearing to come from a site they trust. It’s a long-standing entry on the OWASP Top 10 . Here’s how XSS works and how to prevent it.
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 a barrier between your trusted device or network and the untrusted internet. It’s one of the oldest and most fundamental security tools, and you’re almost certainly using one right now. Here’s how firewalls work, the main types, and whether you need to think about one.
