Summary | Sys. Prefs | Login Screen | Find My ... |
Location | Camera, etc. | Bluetooth | Notifications | Speech |
References: General | Android | Bluetooth | Camera | iOS | Location |
macOS | Microphone | Notifications | Screens | Video | Windows
Summary
- [1] Review System Preferences to control what information is shared between apps and over the internet
- [1] Add Contact Info to Login ('Lock') Screen -- useful for medical emergency or if device found
- [1] Enable Find My xx to locate, and optionally erase, your lost/stolen device
- [1] Control Access to your Location by apps and sites: maps, local stores, advertisers?
- [1] Control Access to your Computer, Keyboard, Camera, Microphone, Screen by apps and sites
- [1] Limit Bluetooth Access, e.g., to known contacts only, esp. with AirDrop
- [2] Control System and App Notifications
- [2] Control Sharing of Speech & Analytics Data, e.g., Siri, Alexa; app crashes
- Later sections: Internet of Things (SmartTVs; Game boxes; Amazon Alexa, Apple Siri, Google Home); Share Files Privately
- References
[1] Review System Preferences
- Besides exploring every option under Preferences / Settings, you can use Search
- macOS:
System Preferences > Security & Privacy > Privacy : Location Services, Contacts, Calendars, Reminders, Accessibility, Diagnostics & Usage
[screenshot] - macOS:
System Preferences > Sharing : Screen, Files, Printer, Remote, Internet, Bluetooth
[screenshot] - macOS:
System Preferences > Extensions : All, Actions, Finder, Photos Editing, Share Menu, Today
- iOS:
Settings > Privacy : (many)
[screenshot] - iOS:
Settings > General > Restrictions: (many)
- Windows: (File Sharing) {Figure 7. TCYOP-4: 72; TCYOP-3: 59}
[1] Add Contact Info to Login ('Lock') Screen
- macOS:
System Preferences > Security & Privacy > General (lock message)
[screenshot] - iPhone:
Health > Medical ID: Medical Conditions, Spouse, Child, Blood Type, Organ Donor
- result: "Emergency" link on lock screen
- iOS: add a message to your Lock Screen by overlaying text* on an image
- You can also set this (or a different) image as your Home Screen (background for app icons).
- iOS:
Settings > Wallpaper > Choose a New Wallpaper > Camera Roll >
[screenshot] - ... (tap lock image)
> (iPhone:Set) > Set Lock Screen
- ... (tap home image)
> (iPhone:Set) > Set Home Screen
- *[2] Use an image app on desktop or iOS to add text to an image; tradeoffs: cost, simplicity, flexibility.
- e.g., use Preview on Mac to create 2 appropriately-sized images: one for use with Home Screen, one with text for Lock Screen
- macOS:
Finder > (select original image) > File > Duplicate
; rename with suffix, e.g., 'home' - macOS:
Preview > File > Open: 'home' image, e.g., my-ipad-screen-home.jpg
- Preview: use rectangular selection tool to highlight a square area corresponding to device's smaller dimension
- e.g., iPad Air: 2048x2048, iPhone 7: 750x750; square wallpaper will work with both portrait and landscape screen orientations
- macOS:
Preview > Tools > Crop; File > Save
- macOS:
Finder > (select 'home' image) > File > Duplicate
; rename with suffix, e.g., 'lock' - macOS:
Preview > File > Open: 'lock' image, e.g., my-ipad-screen-lock.jpg
- macOS:
Preview > Tools > Annotate > Text
- add text, e.g., name, email, phone: yours(iPad), spouse(iPhone); customize font, size, etc.
- macOS:
Preview > File > Save
- transfer lock (& home) image file(s) to Photos (iOS) via AirPlay, Messages, Mail, ...
- set wallpaper(s) -- per earlier instructions
- iOS:
Settings > Control Center > Access on Lock Screen
If on, someone would be able to enable Airplane Mode on a lost/stolen phone, which would disable Find My iPhone - iOS:
Settings > Passcode (or Touch ID & Passcode) > Allow access when locked: Notifications, Siri, Wallet, etc.
[screenshot]
[1] Enable Find My iPhone, iPad, Mac, Windows
- To use: login to iCloud account
- macOS:
System Preferences > iCloud > Find My Mac
[screenshot] - iOS:
Settings > (my acct) > iCloud > Find My iPad/iPhone
[screenshot] - [2] iOS:
Settings > Privacy > Location Services > System Services > Status Bar Icon: off
If your phone is lost/stolen, and you're tracking it, it's better not to advertise it, though this turns off for all location services? - Windows:
Windows Settings > Update & Security > Find my Device
- Windows iCloud setup for iOS devices
[1] Control Access to your Location
- Before
- And:
Settings > Security & Location > Location > App-Level Permissions: on, off
- macOS:
System Preferences > Security & Privacy > Privacy : Location Services
[screenshot] - macOS:
... Location Services > System Services > Details > Show location icon in menu bar when System Services request your location
- macOS:
Safari > Preferences > Privacy > Website use of Location Services
[screenshot] - macOS:
Firefox -- none?
- macOS:
Chrome > Preferences > Advanced Settings > Privacy > Content Settings > Location
- iOS:
Settings > Privacy : Location Services: Share My Location; Apps; System Services
choices: Never, Always, While Using [screenshot] - iOS:
Settings > (your acct) > iCloud > Share My Location
- After: allow/deny for specific web sites that request access on an adhoc basis
[1] Control Access to your Computer, Keyboard, Camera, Microphone, Screen
- An entrepreneur has made a device that can prevent the NSA from spying on you by blocking your laptop's camera. This new high-tech device is...
- Avoid snooping on your keyboard and screen over your shoulder in public places; control remote access
- macOS:
System Preferences > Security & Privacy > Privacy > Accessibility > Allow apps to control your computer
[screenshot] - macOS:
System Preferences > Sharing > Screen Sharing; Remote Login
[screenshot] - macOS:
System Preferences > Security & Privacy > Privacy > Camera
older versions: use a piece of cardboard & tape except for specific apps! - macOS:
Chrome > Preferences > Advanced Settings > Privacy > Content Settings > Mouse cursor; Media (camera, microphone)
- iOS:
Settings > Privacy > Microphone, Camera, Motion
[screenshot] - iOS:
Settings > Safari > Camera & Microphone Access
- Windows:
Windows Settings > System > Remote Desktop
[1] Limit Access to Bluetooth
- a wireless technology standard for exchanging data over short distances between "paired" devices, e.g., for keyboard, headset, AirDrop (file sharing), share Internet connection
- range: 30-300' depending on device power Class and environmental factors
- most modern devices and implementations support encryption
- however, if you enable only temporarily when you need it, your device will be more secure, use less power, etc.
- macOS:
System Preferences > Bluetooth > Turn Bluetooth: On/Off
[screenshot] - iOS:
[swipe up] > AirPlay
- iOS:
General > AirDrop: Contacts Only
-- or Receiving Off; if Everyone then just temporarily - iOS:
Settings > Bluetooth: On/Off
[screenshot] -- note: disabling via iOS11 Control Center does not completely turn off!
[2] Control System and App Notifications
- Messages that appear in the 'Notification Center' can be useful vs. annoying
- risk if someone sees screen, e.g., verification codes via SMS; allow/deny for web sites that request access?
- macOS:
System Preferences > Notifications
[screenshot] - macOS:
Safari > Preferences > Websites > Notifications: Allow websites to ask for permission to send push notifications
- macOS:
Chrome > Preferences > Advanced Settings > Privacy > Content Settings > Notifications
- iOS:
Settings > Notifications
[screenshot] - iOS:
Settings > Notifications > Show Previews > When Unlocked
- Windows:
Windows Settings > System > Notifications & Actions
[2] Control Sharing of Speech & Analytics Data
- Collecting data about crashes and usage of services can improve system services and applications
- Is it anonymized? Read privacy policies
- iOS:
Settings > General > Siri > About Siri and Privacy (read)
- Dictation online: spoken words are recorded and uploaded to Apple's servers for translation
- Enhanced (offline) mode more private but requires software install
- macOS:
System Preferences > Dictation & Speech > Dictation > Use Enhanced Dictation
- iOS:
Settings > Privacy > iPad/iPhone Analytics: [none/all] Share iPad Analytics (with Apple), Share With App Developers, Share iCloud Analytics (with Apple)
- macOS:
System Preferences > Security&Privacy > Privacy > Analytics: [select] Share Mac Analytics (with Apple), Share with App Developers, Share iCloud Analytics (with Apple)
References
- {TCYOP-4: 72-73; TCYOP-3: 59-60}
- sections: Refs: Android; Bluetooth; Camera; iOS; Location; macOS; Microphone; Notifications; Screens; Video; Windows
- see also VPN section (for hiding location), Mobile Privacy section
- topics: AirDrop, Alexa, autoplay, geofencing, maps, Medical ID, photos, Siri, tape
- Wikipedia: Location-based service; Geo-fence; Find My iPhone/Mac
- HowStuffWorks: How Location Tracking Works
- The Best Thing About Apple's AirTags Is Also the Scariest abusers installing unwanted trackers; Giz; 4/30/2021
- 6 Privacy-Focused Alternatives to the Apps You Use Every Day Signal for Messaging; Firefox for Web Browsing; DuckDuckGo for Search; OsmAnd for Maps (OpenStreetMap); ProtonMail for Email; Jumbo for Social Media; Wired; 12/13/2020
Android
Bluetooth
- Wikipedia: Bluetooth; Bluetooth Security
- HowStuffworks: How Bluetooth Works; How Bluetooth Surveillance Works
Camera
iOS
- Apple: Privacy: Siri and Dictation; Maps; Health
- Apple: iOS Security Network security pp. 27-30; 9/2015
- Apple: iOS: Supported Bluetooth profiles 3/5/2015
- Jamf's Quick Guide to Which iOS Permissions Apps Really Need TB; 8/26/2021
- How to Manage Which Apps Access Location Data on iPhone & iPad OSXD; 12/29/2020
- How to set up Medical ID on your iPhone MW; 10/21/2020
- Double-Check Your iPhone's Medical ID Emergency Contacts TB; 2/18/2020
- Stop AirDrop in iOS with Screen Time MW; 2/13/2020
- How to See & Change What Apps Can Access Health Data on iPhone OSXD; 1/30/2020
Location
- How to find, block, and disable an unknown AirTag moving with you MW; 5/2/2023
- How to Make Sure You're Not Accidentally Sharing Your Location Wired; 2/12/2023
- How the Find My App Became an Accidental Friendship Fixture
introduced 10 years ago, the app has slowly become a popular way to keep track of friends.
But it comes with considerable privacy concerns; NYT; 8/20/2022 - Your Phone's Location Access Reveals a Lot. Here's How to Turn It Off. NYT; 6/29/2022
- How to find, block, and disable an unknown AirTag moving with you MW; 5/1/2022
- Can Controlling Vehicles Make Streets Safer and More Climate Friendly?
geofencing, Sweden; NYT; 3/28/2022 - How to Hide / Blur Your Home on Google Maps & Apple Maps OSXD; 3/1/2022
- How to find, block, and disable an unknown AirTag moving with you MW; 2/18/2022
- How to find, block, and disable an unknown AirTag moving with you MW; 2/11/2022
- An update on AirTag and unwanted tracking Apple; 2/10/2022
- Apple's New 'Personal Safety Guide' Helps You Deal With AirTag Stalkers Giz; 1/25/2022
- Are Apple AirTags Being Used to Track People and Steal Cars? NYT; 12/30/2021
- What to do when you find an AirTag, or are told by your iPhone that one is following you ApIn; 12/20/2021
- Life360 Family Tracking App Is Selling Its Customers’ Precise Location Data TB; 12/15/2021
- How to opt out of the Find My network
participating in Apple’s crowdsourced network for devices and AirTags is optional; MW; 5/28/2021 - Six Reasons Why Google Maps Is the Creepiest App On Your Phone
1. Google Maps Wants Your Search History
2. Google Maps Limits Its Features If You Don't Share Your Search History
3. Google Maps Can Snitch On You
4. Google Maps Wants to Know Your Habits
5. Google Maps Doesn't Like It When You're Offline
6. Google Makes It Seem Like This Is All for Your Own Good;
Vice; 11/12/2020 - What are geofence warrants? TNW; 9/5/2020
- Beware of find-my-phone, Wi-Fi, and Bluetooth, NSA tells mobile users plus ad tracking; Ars; 8/4/2020
- How to Remove Location Data from Photos Before Sharing on iPhone & iPad OSXD; 5/29/2020
macOS
- How to find out which Mac apps are tracking your location MW; 6/14/2021
- How to Prevent Microphone & Camera Access for Websites in Safari on Mac OSXD; 4/22/2021
- Feeling Paranoid? Micro Snitch Tells You If Your Mac Is Spying on You TB; 7/22/2020
Microphone
Notifications
- How to Take Control of Your Notifications NYT; 2/5/2020