These updates will continue to help businesses block phishy activity, including untrusted sender tries to share encrypted attachments or someone trying to trick you by sending information from a domain that looks like yours.
With these protections in place, more than 99.9% of Business Email Compromise scenarios—when someone impersonates an executive to get sensitive information—are automatically moved to spam or flagged to users as phishy.
Many of these protections are default-on, which means you don’t have to do a thing. Read up here, or get started using the security center for G Suite.