Category: Security
-
What Happens Without a Firewall? The Era of “Infected Just by Connecting” and 5 Moments You’re Still Exposed
You boot a brand-new PC, and before the antivirus is even installed, you’re told to open a website to activate its license ── is that moment of going online “unarmed” actually dangerous? Starting from the mid-2000s era when PCs got infected within minutes of connecting, this article maps out what…
-
Complete Guide to Industrial Communication Protocols [2026] — EtherCAT, PROFINET, Modbus, CAN & OPC UA Compared
A comprehensive comparison of industrial communication protocols — EtherCAT, PROFINET, EtherNet/IP, Modbus, CAN/CANopen, and OPC UA. Covers strengths, weaknesses, use cases, and selection criteria from a practical engineering perspective, spanning fieldbus to Industrial Ethernet and information integration.
-
10 Python Security Patterns — A Practical Code Guide for Secure Web Tools
Learn the 10 essential security patterns every Python developer should implement when building web tools and APIs. Covers secrets, bcrypt, JWT, SQL injection prevention, XSS, and more.
-
Password vs UUID vs Hash vs Token: A Developer’s Guide to 8 Types of Random-Looking Strings
UUIDs, passwords, hashes, tokens, API keys, salts, nonces, and signatures all look like random strings — but serve completely different purposes. This guide explains the design intent behind each and when to use them.