Common sense

Technology is never foolproof and here is an excellent example where common sense is overwhelmingly essential.
I received the highlighted link in my Gmail which wasn't marked as spam. A quick glance at the path and I knew this was obviously a ruse but I wondered why Gmail's spam detection didn't pick this up. I quickly ran the suspicious link against the scanners hosted on VirusTotal and was utterly disappointed that not a single engine was able to mark it as malicious.