On May 1st, Google announced that the browser had been targeted and successfully attacked by hackers. This hack brought to light 30 security flaws, including seven that are considered High Threat Level. It is unclear at this time if any user data was compromised.
Google has already released a software update patching these flaws and your browser should have already auto-updated itself to the patched version.
Google has released a list of the bug fixes, but they are keeping the details of the hack under restricted access until a majority of users are operating on the most recent version of the software.
It is imperative you make sure that your installation of Chrome is using the latest version.
If it has not been updated, or you want to make sure you’re using the most recent version, you can manually update it by clicking the three dots at the top right corner of your browser window and scrolling down to “Help” and then pressing “About Google Chrome”. Once you open this page, Chrome will automatically update.