Mac Privacy Tips That Actually Make a Difference

Privacy advice for the Mac usually swings between “Apple has you covered, relax” and “install five apps and rebuild your kernel.” The truth is in between. macOS gives you real privacy controls, but the defaults skew toward convenience. Here’s what to actually flip, in order of impact.

Audit Privacy & Security permissions

System Settings, Privacy & Security. The first 12 entries (Location Services, Contacts, Calendar, Reminders, Photos, Camera, Microphone, Screen & System Audio Recording, Accessibility, Input Monitoring, Full Disk Access, Files and Folders) are the high-impact ones. Click each:

• Location Services: most apps don’t need this. Untick anything that isn’t Maps, Weather, Find My, or a navigation app. Pay attention to System Services — there’s a long list of macOS subsystems requesting location, most of which can be disabled
• Camera and Microphone: only apps you actively video-call with should be checked. Slack, Zoom, FaceTime, yes. Random utilities, no
• Screen & System Audio Recording: anything new on this list since you last looked is suspicious. CleanShot X, Loom, OBS — those are expected. Random “remote support” apps you don’t remember installing — uninstall
• Accessibility: very powerful permission. Apps with this can see and control everything on your screen. Window managers (Rectangle, Magnet) need it. Almost nothing else does
• Full Disk Access: gives an app access to your entire user folder, including Mail, Messages, browser data. Time Machine and backup tools need this; few other things do
• Input Monitoring: lets an app see every keystroke. Karabiner-Elements needs it for remapping. If something else has it, investigate

Go through these once a quarter. Apps that get permissions and then get uninstalled often leave the entries behind.

Disable analytics

System Settings, Privacy & Security, Analytics & Improvements. Untick:

• Share Mac Analytics
• Improve Siri & Dictation
• Share with App Developers
• Share iCloud Analytics

These send diagnostic data to Apple. Apple anonymizes it, but you can opt out without consequence. Same panel turn off “Improve Search” if you’d rather not contribute Spotlight queries.

Skip the manual huntSweep finds the cache, clutter, and forgotten files in seconds. Download Sweep free →

Apple Advertising

System Settings, Privacy & Security, Apple Advertising. Untick “Personalized Ads.” Apple uses your interests for App Store and Apple News ads. Turning this off limits to non-personalized ads.

Safari privacy settings

Safari, Settings, Privacy:

• Prevent cross-site tracking: on. Default is on. Don’t disable
• Hide IP address: from Trackers. iCloud+ subscribers can choose “Trackers and Websites”
• Block all cookies: tempting but breaks too many sites. Skip
• Allow privacy-preserving measurement of ad effectiveness: untick

In Settings, Websites:

• Auto-Play: set to “Never Auto-Play” globally
• Notifications: set to “Block all” or only allow specific sites you trust
• Camera and Microphone: deny by default; grant per site as needed

Privacy Report (Safari menu, Privacy Report) shows trackers blocked over the last 30 days.

iCloud Private Relay

System Settings, click your Apple ID, iCloud, Private Relay (iCloud+ subscribers only). Turn on. This routes Safari traffic through two relays — Apple sees your IP but not the destination, the second relay sees the destination but not your IP. Roughly equivalent to a privacy-focused VPN for browsing.

Limitations: only works in Safari, doesn’t hide traffic from other apps, can be blocked by some networks (banks, school Wi-Fi).

Hide My Email

Same iCloud+ panel. Generates random email aliases that forward to your real address. Use them for newsletter signups, online forms, anywhere you don’t want your real address.

If a service starts spamming, delete that specific alias. Your real address never gets exposed.

Turn off Spotlight Web Suggestions

System Settings, Siri & Spotlight, Search Results. Untick “Siri Suggestions” and any web-search related items if you don’t want Spotlight queries hitting Apple servers.

You’ll lose web search and Wikipedia inline previews. Most users don’t notice.

Stop background apps from network access

System Settings, Network, Firewall. Turn it on. Click Options:

• “Block all incoming connections” is too aggressive — blocks Screen Sharing and AirDrop
• The middle option: signed software allowed, unsigned blocked — sensible default
• Tick “Enable stealth mode” — your Mac doesn’t respond to ICMP pings from unknown sources

For outbound monitoring, the built-in firewall doesn’t help. LuLu (free, by Patrick Wardle) shows you which apps are making outbound connections. The first few days are eye-opening — every app phones home for something.

Audit menu bar apps

Each menu bar icon is a daemon. Review them quarterly:

• Right-click each one: most have a settings option
• Look for “Quit”: anything you don’t recognize, quit and check what comes back after a reboot
• Login items: System Settings, General, Login Items & Extensions. The bottom list (“Allow in the Background”) shows daemons you may not have noticed

The daemon on your Mac that’s been running since 2019 because you installed a printer driver — it’s still phoning home unless you unchecked it.

App Tracking Transparency

iPhone has it, the Mac is catching up. System Settings, Privacy & Security, Tracking — and confirm “Allow Apps to Request to Track” is off. This pre-denies tracking requests so apps can’t even ask.

Disable AirDrop discovery when not using it

Control Center, AirDrop, set to “Receiving Off” when you’re not actively transferring files. AirDrop set to “Everyone” in a coffee shop is how strangers send you uninvited photos. “Contacts Only” is fine for daily use.

Lock Screen settings

System Settings, Lock Screen:

• Set “Require password” to “immediately” or “5 seconds” after sleep
• Untick “Show notifications when locked” (or limit to specific apps)
• Untick “Show recent apps and Siri suggestions”

A casual passerby shouldn’t see your last text or email on the lock screen.

Hot corner for instant lock

System Settings, Desktop & Dock, Hot Corners. Set bottom-right to Lock Screen. Push cursor there — locked. Faster than Cmd-Ctrl-Q.

Stop apps from sharing your Wi-Fi network

Some apps query the SSID for analytics or “improvements.” iOS made this require permission; macOS doesn’t yet. The workaround:

• Don’t grant Location Services to apps that don’t navigate
• Use Little Snitch or LuLu to block specific outbound traffic
• Connect via Ethernet for sensitive work — apps can still see the local network, but the SSID is harder to leak

Browser fingerprinting

Even without cookies, websites can fingerprint you via: screen resolution, timezone, installed fonts, GPU model, user agent string, plugins.

Counter-measures:

• Brave Browser has built-in fingerprint randomization
• Safari has Intelligent Tracking Prevention but doesn’t randomize fingerprint
• Tor Browser is the most extreme — it makes everyone look the same to websites, at the cost of speed

For most users, blocking trackers (Safari + content blocker, or Brave) is enough. Going full Tor for daily browsing is overkill.

Encrypted DNS

System Settings, Network, your active connection, Details, DNS. Add 1.1.1.1 and 1.0.0.1 (Cloudflare) or 9.9.9.9 (Quad9). Then under “Use encrypted DNS,” pick the matching server.

DNS over HTTPS (DoH) prevents your ISP from seeing every domain you visit. It doesn’t make you anonymous, but it removes one major data source.

Power users use SweepIf you’re tweaking macOS at this level, you’ll want Sweep doing the cleanup. Get Sweep free →

What none of this fixes

• Apple ID itself: if you’re signed into iCloud, Apple has your data. The privacy promise is they don’t read it
• Your phone’s metadata: iMessage and FaceTime use end-to-end encryption, but routing metadata still flows through Apple
• Shared Wi-Fi networks: home and work routers see your traffic; nothing on the Mac changes that. Use a real VPN if you need to hide from network admins
• Browser fingerprinting: as noted above, very hard to fully defeat without breaking real-world browsing

How to think about this

Privacy on a Mac is a sliding scale. The settings above move you significantly without breaking daily use. Going further requires giving up convenience — different mail provider, no iCloud, encrypted DNS, browser fingerprint randomization, ProtonMail, full-disk encryption (which most users have on by default with FileVault — verify in System Settings, Privacy & Security, FileVault).

The 80/20: spend 30 minutes on the audit above, you’ve blocked maybe 80% of routine tracking and reduced your attack surface meaningfully. The remaining 20% costs disproportionate effort and most people don’t actually need it.