Google has introduced new Gmail security features, including early phishing detection using machine learning, click-time warnings for malicious links, unintended external reply warnings, and built-in defences against new threats.
Machine learning helps Gmail block spam and phishing messages from showing up in a user’s inbox with over 99.9% accuracy, said Google.
“Our detection models integrate with Google Safe Browsing machine learning technologies for finding and flagging phishy and suspicious URLs.”
The new models combine a variety of techniques, such as reputation and similarity analysis on URLs, allowing Google to generate new URL click-time warnings for phishing and malware links.
New warnings for employees
Gmail now also displays unintended external reply warnings to users to help prevent data loss.
If you try to respond to someone outside of your company domain, you’ll receive a quick warning to make sure you intended to send that email.
“Because Gmail has contextual intelligence, it knows if the recipient is an existing contact or someone you interact with regularly, to avoid displaying warnings unnecessarily.”
Gmail further blocks millions of additional emails that can harm users through ransomware and polymorphic malware protection.
“We classify new threats by combining thousands of spam, malware, and ransomware signals with attachment heuristics and sender signatures.”