My initial comment was incorrect and has been updated. However, have you actually tried the scenario you describe? In the past, when I have changed my Google account password and logged into a new computer, I have had to enter my previous account password on the new computer to decrypt the data before Sync would work. Indeed, if you look in Chrome Sync&#x27;s settings, you will see text that looks like this: &quot;All data was encrypted with your Google password as of Jan 17, 2015&quot;, letting you know which version of your password to use.