New Security Enhancements in Gmail

Machine learning has helped Gmail achieve more than 99% accuracy in spam detection, and with the following new protections, Google is able to reduce users’ exposure to threats by confidently rejecting hundreds of millions of additional messages every day.

New Built-In Gmail Protections to Combat Malware in Attachments

With new built-in defenses against ransomware and polymorphic malware, Gmail now blocks millions of additional emails that can harm users. Google classifies new threats by combining thousands of spam, malware and ransomware signals with attachment heuristics (emails that could be threats based on signals) and sender signatures (already marked malware).

In addition, Gmail blocks the use of file types that carry a high potential for security risks, including executable and javascript files.

New warnings for unintended external replies, to prevent data loss

Powered by Google’s machine learning, this new Gmail feature helps protect against forged email messages, impersonation, as well as common errors when sending email to the wrong contacts.

This feature empowers G Suite users when responding to emails sent from outside of their organization and not in their contacts. Now, if you try to reply to someone outside of the organization, you’ll receive a quick warning to make sure you intended to send that email.

How does it work?

  • When you click reply in Gmail, Google scans the recipient list, including addresses in the CC. If a recipient is both external to the organization ( and not present in your Contacts, Gmail will display the warning.
  • If the recipient is intended, the warning can be dismissed and you can proceed with the response. Gmail won’t show the warning again for that recipient.

Learn more here.

Posted by Sheena Moore