Google said on Tuesday it discovered a 0 day in the wild which it patched on March 1. The version you want to be using is 72.0.3626.121 for Windows, Mac with the Linux version rolling out over the coming days/weeks. You can find your version number by inputting chrome://settings/help in your Chrome Browser address bar or going into settings_about. Android versions should auto-update if you have auto update turned on but just to be sure check Settings_About Chrome and you’ll see your version number.
“Google is aware of reports that an exploit for CVE-2019-5786 exists in the wild.” – https://chromereleases.googleblog.com/2019/03/stable-channel-update-for-desktop.html