How to keep more of your data in your own hands.
Why Privacy Matters
Privacy is not about having something to hide. It is about control: who knows what about you, when, and to what end.
| Reason | Why It Matters |
|---|
| Personal autonomy | You decide who knows what about you |
| Protection from manipulation | Less data means less targeted influence |
| Safety from stalkers/abusers | Location and routine not exposed |
| Financial protection | Less data for identity theft |
| Future uncertainty | Today's innocent data could be used against you later |
| Power balance | Limits what companies and governments can do with your info |
The Data Economy
The phrase "if you're not paying, you're the product" is dated but still mostly true. Free services run on data: yours, mine, and anyone else who keeps clicking accept.
Who Collects Your Data
| Collector | What They Gather |
|---|
| Search engines | Search queries, browsing history |
| Social media | Posts, friends, interests, location |
| Retailers | Purchase history, payment info |
| Apps | Usage patterns, location, contacts |
| ISPs | All internet traffic |
| Data brokers | Aggregated data from all sources |
| Advertisers | Behavior across websites |
| Smart devices | Voice recordings, home patterns |
How Data Is Used
| Use | Impact |
|---|
| Targeted advertising | You see personalized ads |
| Price discrimination | Different people see different prices |
| Credit decisions | May affect loans, insurance |
| Employment screening | Employers may find your info |
| Political targeting | Customized political messaging |
| Sold to third parties | Ends up in unknown hands |
Browser Privacy
Browser Choice Comparison
| Browser | Privacy | Notes |
|---|
| Brave | Excellent | Built-in blocking, Chromium-based |
| Firefox | Very good | Customizable, good defaults |
| Safari | Good | Apple's tracking prevention |
| Chrome | Poor | Google's data collection |
| Edge | Moderate | Microsoft's data collection |
Essential Browser Settings
| Setting | What to Do |
|---|
| Default search engine | DuckDuckGo, Startpage, or Brave Search |
| Cookies | Block third-party cookies |
| Tracking protection | Enable strict mode |
| Do Not Track | Enable (but not enforced) |
| Clear on close | Consider for cookies and history |
Privacy Extensions
| Extension | Purpose |
|---|
| uBlock Origin | Block ads and trackers |
| Privacy Badger | Learn and block trackers |
| Cookie AutoDelete | Remove cookies after closing tabs |
| NoScript | Block JavaScript (advanced) |
(HTTPS Everywhere was retired in 2022 once HTTPS-only became the browser default. Modern browsers handle this natively, just enable HTTPS-Only mode.)
Private Browsing Mode
| What It Does | What It Doesn't Do |
|---|
| Doesn't save history | Hide activity from ISP |
| Doesn't save cookies | Make you anonymous |
| Doesn't save form data | Protect from websites you visit |
| Cleans up after session | Protect from malware |
Use it for logging into sensitive accounts on a shared computer, or for searches you don't want appearing in your normal history.
Search Engine Privacy
Private Search Engines
| Engine | Features |
|---|
| DuckDuckGo | No tracking, good results |
| Startpage | Google results without tracking |
| Brave Search | Independent index, no tracking |
| Qwant | European, privacy-focused |
| Ecosia | Plants trees, decent privacy |
Search Privacy Tips
| Do | Don't |
|---|
| Use private search engine | Search while logged into Google |
| Open results in new tab | Let searches accumulate profile |
| Consider what you search | Assume searches are private |
Check these settings on each platform:
| Setting Category | What to Review |
|---|
| Profile visibility | Who can see your profile |
| Post visibility | Default audience for posts |
| Contact info | Phone, email, location visibility |
| Search visibility | Can people find you by email/phone |
| Data sharing | Third-party app access |
| Ad preferences | Data used for targeting |
| Activity off platform | Cross-site tracking |
| Action | Privacy Benefit |
|---|
| Limit personal details | Less info for stalkers/identity theft |
| Review friend/follower lists | Remove unknown connections |
| Avoid location tagging | Don't reveal patterns |
| Review tagged photos | Control your image online |
| Use private accounts | Control who sees content |
| Audit third-party apps | Remove unused connections |
| Consider alternatives | Decentralized or private platforms |
What Not to Share
| Category | Risk |
|---|
| Home address | Physical security |
| Vacation plans | Burglary timing |
| Children's details | Their future privacy, predators |
| Birthday | Identity verification bypass |
| Workplace | Social engineering targeting |
| Daily routine | Stalking, pattern exploitation |
| Financial information | Scam targeting |
Email Privacy
Email Provider Comparison
| Provider | Privacy | Notes |
|---|
| ProtonMail | Excellent | End-to-end encrypted |
| Tutanota | Excellent | End-to-end encrypted |
| Fastmail | Good | No encryption, good policies |
| Gmail | Poor | Scans emails for ads |
| Outlook | Moderate | Microsoft data collection |
Email Aliases
Use aliases to protect your main email:
| Service | Features |
|---|
| SimpleLogin | Generate unlimited aliases |
| AnonAddy | Free tier available |
| Firefox Relay | Mozilla-backed |
| Apple Hide My Email | Built into iCloud+ |
| 1Password | Integrated aliases (with Fastmail) |
When to Use Aliases
| Situation | Benefit |
|---|
| Online shopping | Block future spam |
| Newsletter signups | Easy to disable |
| Account registration | Identify who sells your data |
| Dating sites | Protect real email |
| Job applications | Separate from personal |
Data Brokers
A data broker is a company you have never heard of that knows where you live, where you work, who you live with, and roughly what you earn. They aggregate public records, scraped social media, and purchased data, then sell the result.
What Data Brokers Do
| Activity | Impact |
|---|
| Aggregate public records | Build detailed profiles |
| Buy data from companies | Combine disparate sources |
| Sell to marketers | Targeted advertising |
| Sell to employers | Background checks |
| Sell to individuals | People search sites |
Opting Out of Data Brokers
| Major Brokers | Opt-Out Location |
|---|
| Spokeo | spokeo.com/optout |
| Whitepages | whitepages.com/suppression-requests |
| BeenVerified | beenverified.com/f/optout/search |
| Intelius | intelius.com/optout |
| PeopleFinder | peoplefinder.com/optout |
Automated Opt-Out Services
| Service | Price | Notes |
|---|
| DeleteMe | $129/year | Removes from many brokers |
| Privacy Duck | $99/year | Similar service |
| Kanary | $89/year | Newer service |
| Optery | Free tier | Some automation |
Location Privacy
Who Tracks Your Location
| Tracker | Method |
|---|
| Phone OS | GPS, WiFi, cell towers |
| Apps with location permission | Direct access |
| Websites | IP address geolocation |
| Photos | Embedded GPS metadata |
| WiFi networks | Known location databases |
| Carrier | Cell tower records |
Reducing Location Tracking
| Action | Effect |
|---|
| Disable GPS when not needed | Stops precise tracking |
| Review app permissions | Limit location access |
| Turn off WiFi/Bluetooth scanning | Stops ambient tracking |
| Disable location history | Stops accumulating data |
| Strip photo metadata | Location not in shared photos |
| Use VPN | Masks IP geolocation |
Location Permission Best Practices
| Permission Level | When to Use |
|---|
| Always | Never (for most apps) |
| While Using | Maps, weather, ride-share |
| Ask Every Time | Occasional location needs |
| Never | Default for most apps |
Smart Home Privacy
Smart Device Concerns
| Device | Privacy Issue |
|---|
| Smart speakers | Always listening |
| Smart TVs | Viewing habits, camera/mic |
| Smart cameras | Video/audio in your home |
| Smart thermostats | Presence patterns |
| Robot vacuums | Home mapping |
| Smart doorbells | Neighbor surveillance |
Reducing Smart Home Risks
| Action | Benefit |
|---|
| Use physical mute buttons | Confirmed off for microphones |
| Review voice recording history | Delete accumulated data |
| Segment on separate network | Limit access to other devices |
| Cover cameras when not in use | Physical privacy |
| Review privacy settings | Disable unnecessary sharing |
| Consider local-only options | No cloud, no data collection |
Credit and Financial Privacy
Credit Freeze
A credit freeze locks your credit file at each bureau. Nobody (including you) can open new credit in your name until you lift the freeze. It is free and the single best identity-theft defense available in the US:
| Bureau | How to Freeze |
|---|
| Equifax | equifax.com/personal/credit-report-services/credit-freeze/ |
| Experian | experian.com/freeze/ |
| TransUnion | transunion.com/credit-freeze |
| Innovis | innovis.com/personal/securityFreeze |
Freezing is free at all four bureaus and can be temporarily lifted online when you need to apply for credit.
Financial Privacy Tips
| Action | Benefit |
|---|
| Freeze credit | Prevent fraudulent accounts |
| Opt out of prescreened offers | Less junk mail, fewer data shares |
| Use virtual card numbers | Protect real card from merchants |
| Review annual credit reports | Catch unauthorized accounts |
| Limit cards on file | Fewer places your card is stored |
Communication Privacy
Encrypted Messaging
| App | Encryption | Notes |
|---|
| Signal | End-to-end | Gold standard, minimal metadata |
| WhatsApp | End-to-end | Good encryption, owned by Meta |
| iMessage | End-to-end | Apple ecosystem only |
| Telegram | Optional | Not end-to-end by default |
| SMS | None | Avoid for sensitive communication |
Phone Call Privacy
| Option | Privacy Level |
|---|
| Regular calls | Carrier can access |
| Signal voice | End-to-end encrypted |
| WhatsApp voice | End-to-end encrypted |
| FaceTime | End-to-end encrypted |
Privacy Mindset
Data Minimization
| Principle | Application |
|---|
| Give only what's required | Don't fill optional fields |
| Use fake info for unimportant accounts | Birthday, middle name |
| Delete old accounts | Reduce data exposure |
| Limit what you share | Not everything needs to be public |
| Read privacy policies | Know what you're agreeing to |
Privacy vs. Convenience Trade-offs
| More Privacy | More Convenience |
|---|
| Multiple email aliases | One email for everything |
| Different passwords | Same password |
| Manual logins | Stay logged in |
| Multiple browsers | One browser for everything |
| Review permissions | Accept all permissions |
Gradual Privacy Improvement
| Week | Actions |
|---|
| 1 | Install uBlock Origin, switch to private search engine |
| 2 | Review social media privacy settings |
| 3 | Set up email aliases for new signups |
| 4 | Freeze credit at all bureaus |
| 5 | Opt out of major data brokers |
| 6 | Audit app permissions on phone |
| 7 | Review and delete old accounts |
| 8 | Consider switching to privacy-focused email |
Key Takeaways
- Privacy is control, not concealment. You decide who knows what.
- Free services are funded by your data. Cost of doing business.
- Switch browsers. Brave or Firefox plus uBlock Origin is a strong default.
- Switch search engines. DuckDuckGo or Startpage instead of Google.
- Freeze your credit. Free, and the strongest identity-theft defense available.
- Use email aliases. Protect your real address from the random signup form.
- Audit app permissions. Location especially.
- Opt out of data brokers. DeleteMe, Optery, or a slow weekend with the opt-out forms.
- Use end-to-end encryption. Signal for anything sensitive.
- Privacy compounds. Small steps each month outperform a one-day overhaul.
Next Steps
Continue to 09-family-safety.md to apply this to the people who didn't sign up for any of it: kids, teens, and elderly relatives.