Email security tools -at their very best- can only protect phishing emails delivered via corporate emails. These tools do not protect phishing emails delivered from personal emails.
Detecting zero-day attacks and responding to them may take a few days that make cyber-criminals win.
New attacks that are both targeted and sophisticated, including spear phishing, are unknown threats that evade detection from traditional filters.
Cyber-criminals often send their phishing emails to enterprises' clients. Therefore none of the security tools and awareness programs can be effective.
"The best way to win phishing battles is to reduce detection and response times."
-Maziar Janbeglou (Founder)