If you handle suspicious files — malware samples, email attachments, downloads from sketchy URLs — you’ve done the dance: hash the file, open VirusTotal, paste the hash, wait, repeat. It’s slow, manual, and burns your attention on process instead of analysis.
This is Part 1 of the Post-Quantum Cryptography series — a plain-language guide to what’s coming, why it matters, and what to do about it. Most security problems announce themselves. A suspicious login, a port left open, a file where it shouldn’t be. You get a signal, and usually a chance to respond.
Security headers are the cheapest defense you can deploy. They cost nothing, take minutes to configure, and block entire classes of attacks — XSS, clickjacking, MIME sniffing, SSL stripping. Yet most sites get them wrong, or don’t set them at all.
