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Consumer Device Security and
Privacy for the General Public
Matt (mattrix) Hoy
David (davo) Khudaverdyan

About Matt (mattrix) Hoy
• @mattrix_ on twitter
• Has fancy security alphabet certs
• Principal Consultant – Security Optiv

About David (davo) Khudaverdyan
• Twitters: @deltaflyerzero
• Drinks whisky from Japan (scotch can come
too)
• Wishes he was here
• Has Cat pics:

Consumer Device Security and Privacy
for the General Public
• Why?
– Mobile Devices and Operating Systems are becoming more invasive by default
– The “general consumer” has no idea that these settings exist.
– Many in our own community have no idea that these settings exist as well
– This is what the GENERAL PUBLIC can do about consumer security and privacy
• What this covers:
– Do you trust your device?
• Tailored Access Operations (TAO) on iOS, Android and General computing devices
• Superfish on Lenovo
• Windows 10
• OS X
• Ubuntu
– iOS vs. Android Privacy Granularity
– Windows 10
– OS X
– Ubuntu Unity

Consumer Device Security and Privacy
for the General Public
• What this covers (cont.)
– What cloud are you on?
– What carrier are you on?
– What apps should you use?
– Recent advances in mobile security
– Recent fails in security
– Invasive Operating System Defaults
– Why do we willingly allow this?

Do you trust your device?
• Shrink Wrapped Compromise
• Default invasive privacy settings
• Bloatware and Crapware
• SIM Card Security
• The Fappening

You got your new device, now what?
• And now we clean
– iOS Device Firmware Update (DFU) – 3 times
– Android – Factory Reset – Best Effort
– Macintosh Computer – Create Standard GUID
Partition Table
• Use a Windows or Linux to format EFI partition
– X86 Computer
• Rip and Replace entire Hard Drive
• Write Zeroes to HD
• Remove and Create Standard GUID Partition with HD Tools

iOS Privacy Granularity
• iOS has built-in granular privacy controls for:
– Location Services
– Contacts
– Calendar
– Reminders
– Photos
– Bluetooth Sharing
– Microphone
– Camera
– “Health”
– “HomeKit”
– Motion & Fitness
– “Social Media”
• Facebook
• Twitter
• etc

iOS 9.0.2 New Settings and iPhone 6S
• New to iOS 9.0.2
– Spotlight Search
• Disable Bing Web Results
• Disable Spotlight Suggestions
• New to iPhone 6S Hardware
– Live Photo Mode on by Default
– Video and Audio for 3 seconds when taking a
picture
• Disable Live Photo Mode
• Could potentially be embarrassing by hot mic

• When does it ask you?
– When the app needs access to that feature
• What if you don’t want to give the app access
– The app just has to deal (Thanks Apple!)
• What if I changed my mind?
– Settings -> Privacy -> App Name, flip the switch
next to the app. Easy.

• What about options?
– For Location Privacy:
• Never: It never happens
• While Using the App: Only when the app is ON THE
SCREEN
• Always: Even if the app is running in the background
– Everything else:
• Keep it simple, the app has access or it doesn't.

• Siri and iCloud Spies on you
– How They do it
• Location History – Apple Maps, Frequent Locations
• Siri – “Siri, when do you track me?”
• Safari History
– How to disable
• Turn off iCloud
• Limit Location use
– Turn off Frequent Locations!
• Change your advertising ID / Limit Ad tracking

iOS Services
• Turn off unused services
– General -> Settings -> Restrictions
– Airdrop
– CarPlay
• Lock Screens
– Why lock the screen if you are going to allow
notifications and banners?
• Check your notifications settings

Limit Siri
• Siri is always listening for invoke command
(iPhone 6s [Plus] Only)
– “Hey Siri”
– Disable “Hey Siri” General -> Siri

Android Privacy Granularity (or not)
• No unless you root
– If you root you’re not secure!
• Rebuild Manifest using Android SDK
– Who has time for this?
– Also this talk is for people that are not doing
infosec/IT for a living
• Marshmallow (Android 6)
– Has iOS-like privacy options
– Effectiveness will remain to be seen
– Only available on latest devices

Android Privacy Granularity (or not)
• Google Spies on you
– How they do it
• Voice and Audio Activity – Google Now
• Search History – Web Searches
• You Tube History– Anything you watched on You Tube
• Location History
– Applications Drawer
• Account History > Web and App Activity > Manage History
• Tap the Settings Button (looks like a gear) and delete
everything

Windows Privacy
• Cortana spies as well
– How they do it
• Location
• So does Bing
– How to disable?
• Cortana
• So does the OS?
– Using a Microsoft Account?
– Default Privacy Settings send MS lots of PID!

OS X Privacy
• iCloud
• Limited Granular Privacy Settings (almost like iOS)
• Spotlight is invasive
– (Settings -> Spotlight) Turn off:
• Bing Web Searches
• Allow Spotlight Suggestions in Spotlight and Look up
• Anything else you don’t want search indexed
• Privacy Defaults
– (Settings -> Security & Privacy)
• From the “Privacy” tab, in the “Diagnostics and Usage”
– Turn off “Send diagnostic & usage data to Apple”
– Turn off “Share crash data with app developers”

Ubuntu
• Not even Linux is sacred anymore
• Unity Desktop
– Searches the web by default
– Need to either disable Unity or use a (not built-in)
tool to disable hidden settings
• The “Unity Tweak Tool” from the Software Center can
do this

What cloud are you on?
• Google
– Makes money from Targeted Advertising
• iCloud
– Takes your money but who has access?
• Lacks controls
• Microsoft
– Microsoft is new to the space and hasn’t yet gotten
too evil if you avoid using Cortana and Bing
• Box
– Takes your money
– Pretty good actually…

What carrier are you on?
• Supercookie anyone?
– AT&T: Unknown
– T-mobile: Unknown
– Sprint: Unknown
– Verizon: Now allows opt out

What carrier are you on?
• No longer using carriers internet
– VPN
• Need L2TP IPSEC VPN with Secret or Certs
– Mattrix’s choices – so fuckin 1337 I need two
» AceVPN – Dirty and untrusted
» Private Internet Access – General Use
– Davo’s choice – fast and simple
» VyprVPN (Golden Frog)

What Apps should you use?
• For Enhanced Privacy
– Signal
– Red Phone / Secure Text
– STRIP
– Burner
– iMessage
– Google Authenticator

Advances in Smartphone Security
• iOS – Encryption (Hardware Based) with iOS 7+
• iOS – Full Device Encryption (Hardware Based) with iOS 8+
• iOS – Forced longer passcode with iOS 9 (New setup only)
• Android – Full Device Encryption (Included SD Card) - Jelly
Bean
• Android – Full Device Encryption (What’s an SD Card?) –
Lollipop
• Android – Also forced longer passcode with Marshmallow
• It must be good since there was a recent Senate Hearing on
why we should not have encryption on any Smartphone

Fails in Smartphone Security
• Android Lollipop – Encryption not enabled out of
the box
• iOS – Encryption but a 4 digit pin out of the box
• Samsung Galaxy S5-6 – Fingerprints not
encrypted and accessible by rogue apps
• Android App Store – 1228 Vulnerable to FREAK
• iOS 8 – Wifi Denial of Service
• Android Complex Password Bug
• Gemalto – Entire SIM Card Plant compromised by
stolen encryption keys

This is OUR fault!
• <rant>
• We LET them do this!
• We, the consumers. We, the professionals
• We thought it would be more “convenient”.
• Now we all use smartphones and OS’ that SUCK
on security >:(
• How could we let this happen?
• Why didn’t we stop it when we had the chance?
• </rant>

How Did We Get Here?
• "Dead Kennedys - Give Me Convenience or Give Me Death cover” Licensed under Fair use”

The Informed Conclusion
• Check your settings
• Check your settings with each revision change
• Review App Permissions
• Restrict Apps if you can
• Do not log into the Cloud for browser usage
• Clear your cache and cookies
• Use a VPN

The Informed Conclusion
• Learn about your Operating System Settings
• Never Activate the Cloud
– When you set up OS X it asks you to sign up for
iCloud – Don’t
– When you set up Ubuntu disable Unity Services
– When you set up Windows 8.1 – 10 it asks you to
sign up for it’s cloud services – Don’t
• Unplug the internet /disable wi-fi and install/setup
without connection

The Paranoid Conclusion
• Don’t Piss off a Nation State
• Don’t use a smartphone
• Don’t use a computer
• Install a Faraday Cage around your house

Questions
• There’s no such thing as a silly question…

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