All of your Streak data is stored on Google's Cloud Platform in the United States. Google's Cloud Platform has the same security policies, procedures, and infrastructure in place as other popular Google products such a Gmail and Google Drive.
Streak stores information about your Pipelines and Boxes on our servers. We implement strict controls such that no one else can access your data unless you've explicitly shared it with them. You can find our full terms of service on our terms website.
We take security and privacy very seriously. Many financial institutions, investment firms, and banks around the world use Streak to store their confidential information, and we value their trust. If you'd like to read more about how Google handles the security of data within their Cloud Platform, we recommend reading their documentation on it.