Alien Watch

"The information we collect includes unique identifiers, browser type and settings, device type and settings, operating system, mobile network information including carrier name and phone number, and application version number. We also collect information about the interaction of your apps, browsers, and devices with our services, including IP address, crash reports, system activity, and the date, time, and referrer URL of your request."

Google collects a broad range of device data including unique identifiers, carrier info, phone number, installed apps, system activity, and crash reports — well beyond what's needed for any single core service.

"Depending on the products you're using and settings you choose, Google may use different types of location information to help make some services and products you use more helpful. These include: GPS and other sensor data from your device, IP address, Activity on Google services, such as from your searches or places you label like home or work, Information about things near your device, such as Wi-Fi access points, cell towers, and Bluetooth-enabled devices."

Google collects location data from multiple sources including GPS, IP address, WiFi access points, cell towers, and Bluetooth devices, enabling pervasive location tracking across contexts.

"We change this Privacy Policy from time to time. We will not reduce your rights under this Privacy Policy without your explicit consent. We always indicate the date the last changes were published and we offer access to archived versions for your review. If changes are significant, we'll provide a more prominent notice (including, for certain services, email notification of Privacy Policy changes)."

While Google commits to not reducing rights without consent, policy changes can still be made unilaterally with only after-the-fact notice, and continued use constitutes acceptance of non-rights-reducing changes.

"We provide personal information to our affiliates and other trusted businesses or persons to process it for us, based on our instructions and in compliance with our Privacy Policy and any other appropriate confidentiality and security measures. For example, we use service providers to help operate our data centers, deliver our products and services, improve our internal business processes, and offer additional support to customers and users. We also use service providers to help review YouTube video content for public safety and analyze and listen to samples of saved user audio to help improve Google's audio recognition technologies."

Google shares personal information with affiliates, trusted businesses, and service providers for a wide range of purposes including audio analysis and content review, extending data access beyond Google itself.

"We keep some data until you delete your Google Account, such as information about how often you use our services. And some data we retain for longer periods of time when necessary for legitimate business or legal purposes, such as security, fraud and abuse prevention, or financial record-keeping. When you delete data, we follow a deletion process to make sure that your data is safely and completely removed from our servers or retained only in anonymized form."

Some data is retained indefinitely until account deletion, and other data is kept even longer for broadly defined "legitimate business" purposes with no specific timeline, and deletion may be delayed by backup systems.

"We may use the information we collect across our services and across your devices for the purposes described above. For example, depending on your available settings, if you watch videos of guitar players on YouTube, you might see an ad for guitar lessons on a site that uses our ad products. Depending on your account settings, your activity on other sites and apps may be associated with your personal information in order to improve Google's services and the ads delivered by Google."

Google links user activity across all its services, across devices, and across third-party sites and apps that use Google services, creating a comprehensive cross-platform profile for ad targeting and personalization.