Trace your commute

Digital tracking

The trail beyond the camera.

Understand how apps, advertising systems, connected vehicles and home cameras handle personal information.

Browse by subject

10 guides

Phones and shared location

Phone permissions, carrier records, shared routes and nearby devices.

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Digital tracking explained

How phone location data becomes a trail

App permissions and saved location history are different controls. Start by understanding what each one allows.

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Digital tracking

Phone carriers and network location records

App permissions and a carrier's network records are different. Read the distinction in Verizon and T-Mobile disclosures before choosing a control.

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Location sharing

Who can see your shared phone location?

A one-time pin, an ongoing location share and saved location history have different controls. Check the people and links receiving your location.

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Bluetooth item trackers

How Bluetooth item trackers can reveal an item's location

Nearby phones can help locate a tag through a finding network. Unwanted-tracker alerts provide a warning with defined compatibility and evidence limits.

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Location and activity data

How fitness routes and activity sharing expose location

Strava and Garmin document separate controls for activity audiences, map visibility, connected apps, community maps and live tracking. One choice does not cover every route copy.

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Location and social data

Snapchat location sharing and saved map history

Ghost Mode, Live Location, public map Snaps, Footsteps and visited places have different scopes. Understand what each control changes and what it leaves to review.

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Digital tracking

How photos can reveal a location

Separate camera-saved coordinates, estimated photo locations, app-library access and the information visible in the picture itself.

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Emergency location and selected recipients

How emergency calls and SOS can share location

Emergency location delivery, personal contacts and satellite messages follow different paths. A normal location-permission switch does not describe all of them.

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Timed safety sharing and recipient data

What safety check-ins can share with selected contacts

Apple Check In and Pixel Safety Check share information under different conditions. Review the destination, detail level, timer and recipient before starting a session.

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Maps visits and personal location history

What Apple Maps visited places and location history retain

Significant Locations & Routes, Maps Visited Places and ordinary map requests have different data paths. Encryption and history controls have specific scopes.

27 guides

Apps, browsers and public search

Advertising, account history, browser controls and information found online.

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Digital tracking explained

What data brokers do with personal information

A location-data enforcement case and a state deletion tool show why the source, buyer and legal scope matter.

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Digital tracking explained

How ad tracking and real-time bidding work

An ad auction is a market for an impression. The information sent with a bid request deserves attention too.

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Digital tracking explained

Cookies and browser fingerprinting explained

Deleting a cookie and changing how a browser can be recognized address different mechanisms.

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Digital tracking explained

How long tracking data is kept

Ask about the exact dataset, configured period and exceptions. A default is only a starting point.

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Digital tracking explained

How app code can share data with other companies

An app can include another company's software. The InMarket case shows why a permission prompt does not explain every downstream use.

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Digital tracking

IP addresses, encrypted DNS and network tracking

Understand the information in a network connection and the different limits of HTTPS, encrypted DNS, VPNs and Safari Private Relay.

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Browser extensions

What browser extensions can see about your browsing

Extension permissions can expose page contents, entered information or browsing history. Access capability and proven data collection are different questions.

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Digital tracking

Google account history, saved media and audio

Understand Google's gradually changing history settings, media and review controls, Assistant audio scope and the limits of deletion.

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Browser data

How browser sync moves history and saved data between devices

Chrome, Edge and Safari can keep selected browser information in an account and across devices. Sync choices, personalization and deletion have different scopes.

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Public search and contact information

How Google Search can expose public personal information

A search result, its source page and a monitoring tool are different places for personal information. Learn what Google removal and outdated-result refreshes can change.

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Account links and shared access

What linked apps and account sign-ins can share

Apple and Google distinguish sign-in identity, authorized account data, email forwarding and automatic sign-in. Learn which connection controls which information.

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DNS lookups, resolvers and network records

What DNS lookups can reveal and who receives them

Encrypted DNS protects website-name lookups on the way to a resolver. Browser fallback and the chosen resolver's logging policy remain separate privacy questions.

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Privacy disclosures, permissions and observed activity

What app privacy labels and activity reports actually show

Store privacy disclosures, permission dashboards and network reports answer different questions. Learn how their definitions and limits affect what can be concluded.

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Phone backups and recovery data

What phone backups preserve and who holds the keys

Review iCloud and Android backup contents, encryption limits, retained snapshots, synced photos and separate computer backups.

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AI conversations and connected data

What AI chats can retain beyond the conversation list

Provider examples show how AI-chat history, model improvement, feedback, temporary sessions and connected services produce different records.

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QR codes, short links and redirect records

What QR codes and short links can record

A QR-linked redirect can create provider records before the destination page, while scan dashboards and click counts have limits as evidence of a person’s actions.

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Private browser sessions and remaining records

What private browsing hides and what can remain visible

Incognito, Private Browsing and InPrivate limit some local browser records while leaving separate website, network, download and account activity.

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Public coding profiles and commit identity

What GitHub profiles and commit email can reveal

Profile fields, public activity, daily contribution counts and commit email have separate visibility controls. A private profile does not erase public repository activity.

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Windows screen snapshots and local history

What Windows Recall snapshots can retain

Recall can retain searchable screen snapshots on qualifying Copilot+ PCs after opt-in. Local storage, filtering, temporary pauses and chosen sharing actions have different scopes.

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Website notification delivery and identifiers

What website push notifications involve

A website notification permission can create an ongoing delivery route. Browser subscriptions, encrypted messages, routing metadata and on-screen previews are separate parts of the trail.

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Public map contributions and shared places

What public Google Maps contributions can reveal

Place reviews, uploaded photos, profile details and shared lists have different audiences from private location history. Profile restrictions and custom display names have limits.

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App visibility and retained account records

What app locking and private spaces do not erase

Phone app locks, separate private profiles and purchase-list visibility protect different surfaces. Synced accounts, background activity and retained purchase history still need separate review.

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Account records and exported copies

What account data exports reveal and leave out

Google Takeout and Apple data copies can expose account records and content. Export omissions, archive expiry, managed accounts and third-party copies have separate limits.

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Saved form information and browser services

What browser AutoFill stores and sends

Saved addresses, contact cards and payment details have different storage and deletion scopes. Chrome also describes sending form information for field prediction.

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Website interaction tracking

How website session replay reconstructs a visit

Some analytics tools reconstruct visits from page content and interactions. Masking, cookies, consent and retention affect different parts of the record.

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Website access to device features

What website camera, microphone and location permissions allow

A browser can remember permission for a website to use a sensitive feature. Visit duration, site exceptions and device settings affect that access.

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Wi-Fi identifiers and network privacy

Private Wi-Fi addresses and network tracking

Private or randomized Wi-Fi addresses change a network identifier. A stable private address and a rotating one have different scopes within and across networks.

12 guides

Travel, vehicles and streets

Connected cars, plate records, trips, charging and parking.

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Digital tracking explained

What connected cars can report

Connected services can handle location and driving behavior. The GM case shows why enrollment and sharing choices matter.

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Digital tracking explained

Commercial license plate data and agency access

A historical federal privacy assessment documents commercial plate-data services alongside agency collection.

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Travel and payment data

How transit fare cards and payment accounts create travel records

OMNY and Los Angeles TAP illustrate different layers of transit data: fare transactions, linked accounts, app permissions and program eligibility. Optional registration does not mean no ride records.

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Trips and location data

The data trail behind an Uber or Lyft ride

Phone location, driver routes, trip receipts and advertising choices leave different records. Understand rider privacy controls and their limits before changing them.

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Travel and reservation data

Where flight booking data goes

Airlines, booking sites, loyalty programs and travel suppliers can hold different parts of a trip. Understand booking-reference privacy, optional tracking and retention.

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Public imagery and location

What Street View and public map photos reveal

Street-level photos can show places and connect contributions to a public profile. Learn how Google imagery, contributor photos, historical views and blurring differ.

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Electric vehicles and charging records

How EV charging creates a location and account record

Charging sessions can connect a station, time, payment method and vehicle or account. Learn how network records, employer arrangements, guest charging and Plug&Charge differ.

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Parking, plates and location records

How parking apps connect plates, places and payments

ParkMobile illustrates how a parking transaction creates a location record, how enrolled camera parking differs, and why business and personal history views need separate review.

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Mobile identity credentials and data sharing

What mobile IDs share during enrollment and use

State mobile licenses and passport-based wallet credentials have different issuers, sharing controls, device histories and limits. Review the credential and requested information.

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Insurance driving records and trip visibility

What insurance driving apps can record and share

State Farm and Progressive illustrate how insurance driving programs collect routes and behavior, show trip data to policy roles and retain information beyond a phone display.

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Rental vehicles and retained information

Rental-car data: local copies and connected services

A rental car can retain synced contacts and destinations while connected services handle location and vehicle data. These records need separate reviews.

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Drone broadcasts and location trails

How drone Remote ID broadcasts identity and location

Standard Remote ID and add-on broadcast modules expose different location fields. Understand the broadcast, the aircraft identifier and the limits of privacy choices.

6 guides

Homes and buildings

Doorbells, assistants, household devices, utilities and entry systems.

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Digital tracking explained

Smart doorbells and police requests

Separate legal demands, emergency disclosures and voluntary Ring Community Requests. Storage, sharing copies and encryption settings affect which recordings can be accessed.

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Voice assistants

How voice assistants handle audio and transcripts

Wake detection, on-device processing, retained transcripts and optional improvement programs are separate questions. Read the current service and setting instead of treating every voice interaction alike.

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Smart homes

How smart-home devices and routines produce data

Device events, presence signals, shared control and optional cloud features can create different records. Read the platform, connected service and household permissions separately.

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Connected home data

What a robot vacuum can record about a home

Maps, obstacle photos, optional video and shared app access have different privacy controls. Check the exact model, app and cloud-data rules.

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Utility records and household energy

What advanced utility meters record

LG&E and KU provide a Kentucky example of interval energy readings, account access and third-party data sharing. Learn how meter records, dashboards and service controls differ.

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Buildings, visitors and access records

How building entry systems create access logs

ButterflyMX illustrates how entry calls, access attempts, door releases, visitor passes and vehicle permissions can create different records. Learn the scope of each.

23 guides

Messages, sharing and entertainment

Email, contacts, files, conversations, profiles and media activity.

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Digital tracking explained

What email tracking can reveal

Remote content can report a fetch to a sender. That event is different from proof that someone read a message.

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Digital tracking

Contact uploads and account suggestions

Understand the separate roles of phone contact permissions, app-level syncing, previous uploads and a service's account-suggestion controls.

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Messaging and backups

How message encryption, backups and metadata fit together

Conversation mode, cloud recovery keys, backup copies and linked devices have different privacy consequences. Read the exact service and setting rather than a single encrypted label.

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Cloud files and access

How shared cloud files reach more people

A forwarded link, a shared folder, a group membership and a published document can expose information through different access routes. Review the audience and role together.

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Meeting and workplace data

What video meetings leave behind

Zoom and Teams can create recordings, transcripts and AI summaries with different audiences and retention controls. Learn which records and permissions to check.

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Listening and social data

What Spotify listening and social activity can reveal

Private sessions, public profiles, shared playlists and provider-held streaming history are different. Learn which audiences and records Spotify documents.

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Location and social profiles

Dating app location and profile visibility

Tinder Discovery, Grindr distance labels and map visibility have different limits. Understand hiding, provider-held records and account deletion as separate choices.

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Gaming and social activity

What Discord activity and account data can reveal

Game activity, connected accounts, messages and sponsored-content data have different audiences and controls. Understand Discord visibility, provider collection and deletion limits.

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Digital tracking

How smart TVs recognize viewing activity

Read what Roku and Samsung disclose about automatic content recognition, and distinguish current controls from a historical FTC case.

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Streaming and profile activity

What Netflix viewing and account activity can reveal

Netflix profiles keep viewing activity, while account tools show device activity and other records. Learn how hiding titles, advertising choices, exports and deletion differ.

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Gaming, profiles and activity

What PlayStation activity and profile records reveal

Game activity, trophies, profiles and online status have different audiences and collection rules. Learn the scope of PlayStation visibility and data controls.

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Calendars, routines and shared records

What shared calendars can reveal about a schedule

Google Calendar illustrates how calendar permissions, event privacy, public links, private feeds and exported files create different views of a schedule.

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Notification previews and connected screens

What phone notifications can reveal on other screens

Notification previews, a paired watch, Mac mirroring and Pixel notification history can expose different parts of an alert. Review each surface separately.

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Nearby sharing and selected information

What nearby file and contact sharing can expose

AirDrop, NameDrop and Quick Share use different audiences, transfer approvals and saved-copy behavior. Nearby sharing does not always mean a transfer stays nearby.

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Copied content and connected devices

Where copied text can go through clipboard history and sync

Clipboard history, pinned items, Apple Universal Clipboard and supported Phone Link copying create different paths for copied text and images.

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Reading activity and saved title records

What Libby timelines, tags and reading notes can reveal

Libby illustrates how borrowing activity, synced title lists, reading progress, annotations and exports create different records of reading interests.

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Email identity and forwarding records

What email masks hide and what they still reveal

Random forwarding addresses can hide a primary email from a sender while leaving separate relay-provider records, account links and delivery controls.

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Document metadata and collaboration records

What documents reveal beyond the visible page

Author fields, tracked edits, hidden PDF content, version history and shared-file view logs can reveal different parts of a document trail.

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Shared photos and automatic audiences

What shared photo libraries and albums can expose

Automatic partner sharing, collaborative libraries, album links and recipient-saved copies create different audiences. Removing shared access does not necessarily retrieve copies already saved.

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Hidden photos, backup and retained copies

What hidden, locked and archived photos still retain

Photo display controls, device authentication, cloud backup and recipient copies have different scopes. Hiding an album is not the same action as deleting its photos.

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Phone-to-computer access and notifications

What iPhone Mirroring exposes on a Mac

A paired Mac can interact with iPhone apps and receive notifications. Active phone control, remembered access, authentication and ongoing notifications have separate scopes.

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Messaging identity and contact linkage

Signal usernames, phone numbers and identity links

A Signal username can start contact without sharing a phone number. Existing chats, profile details and verification still affect what the other person can connect.

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Wearable cameras and nearby people

What Meta AI glasses can capture and pass to a phone

Gallery captures, AI camera prompts, device diagnostics and phone location have different data paths. Review the feature being used and the people nearby.

10 guides

Shopping, payments and housing

Purchase histories, deliveries, financial connections and application records.

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Digital tracking explained

Wi-Fi and Bluetooth tracking in stores

A historical retail case and current phone permissions show how nearby-device signals can matter.

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Digital tracking explained

Face recognition in retail: what the Rite Aid case shows

A camera, a face-matching system and a security decision are distinct parts of a surveillance process.

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Shopping data

How shopping and loyalty data become a digital profile

Retailer notices describe linking purchases, rewards accounts and online activity. Read what each company discloses before assuming one opt-out covers every use.

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Payment and social data

How Venmo payments can expose social connections

Payment notes, names, timestamps and friends lists can reveal more than an amount. Understand Venmo audiences, group exceptions, Teen Accounts and retention.

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Grocery orders and household sharing

What Instacart orders and shared carts can reveal

Grocery orders connect purchases, addresses, instructions and account activity. Learn how retailer sharing, family collaboration, saved lists and location permissions differ.

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Financial records and screening

How consumer credit records follow financial activity

Credit reports connect account history, identity details and inquiries. Learn who can receive them, how specialty reports differ, and which access a security freeze limits.

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Financial apps and connected accounts

What bank-linked apps can learn through Plaid

Financial-data connections can share balances, transactions and account details. Understand data scope, the limits of a connection dashboard, and what disconnection or deletion changes.

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Shopping and return records

How retail returns become linked records

Learn how return authorization can connect store and online transactions, why a receipt does not end monitoring, and where return-record requests belong.

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Housing and background records

How tenant screening records follow rental applications

Tenant screening can combine credit, rent, court and income information with scores. Learn why identity matching, case outcomes and provider roles matter.

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Deliveries, photos and shipment records

What delivery photos and tracking records reveal

Package records can connect an address, delivery photo, scan location and shipment history. Learn the different access and accuracy limits documented by FedEx and UPS.

11 guides

Work, school and sensitive records

Managed devices, operating systems, children, health apps and genetic tests.

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Work and school devices

What work-device management can show an organization

Device enrollment, Apple supervision and managed Chrome expose different information. Identify the product, ownership type and actual policy before drawing conclusions.

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Computer privacy

How Windows diagnostics and advertising controls differ

Required diagnostics, optional error data, advertising identifiers, Personalized offers and Microsoft account activity have different scopes. One control does not cover every category.

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Computer privacy

How Mac analytics, permissions and advertising differ

Mac diagnostics, app access, location, Apple advertising and Private Cloud Compute reports cover different data. Read each purpose and control separately.

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Apps and family privacy

How children's apps and connected toys can share data

A connected toy can rely on a phone app and third-party code. Understand the FTC's Apitor case, children's privacy choices and the limits of family controls.

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School technology

How school devices and accounts can collect student activity

A managed device, a school account and a classroom app have different privacy boundaries. Read what Google and GoGuardian disclose and what the Edmodo case established.

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Digital tracking

Health-app data, advertising and privacy coverage

Understand how personal-use health-app data can differ from provider-held records, and what a dated enforcement case shows about advertising disclosures.

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Genetics and family data

How genetic testing creates a lasting data trail

DNA samples, derived results, relative matches and research consent create different privacy choices. Read current 23andMe and Ancestry disclosures and their limits.

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Job profiles and application records

Where resumes and job applications leave records

Indeed and Greenhouse show why profile visibility, submitted resumes, application status, account deletion and employer retention need separate review.

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Online identity proofing and biometric records

What online identity verification collects and retains

Login.gov and ID.me illustrate the separate records behind sign-in accounts, ID checks, face comparisons, fraud controls and agency access.

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Health platform permissions and copies

How Health Connect and Apple Health move data

Health platforms can connect apps, devices, people and backups. Read permissions, write permissions, cloud copies and synced deletion have different scopes.

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Device biometrics and account identity

What Face ID and Windows Hello do with biometric data

Device authentication can keep a biometric template local while an account sign-in still identifies the user. Review the specific system, storage and separate camera features.

Questions and answers

Where do the guides get their information?

Each article links to the regulator, statute or company documentation that supports it and shows its source-check dates.

Does a setting stop all tracking?

No. Browser, app and account controls have different scopes. Read each guide's limits before relying on a setting.

FTC: online tracking