MacOSG: Securely erasing an iPhone/iPod touch (photos)
TweetFollow Us on Twitter

MacOSG: Securely erasing an iPhone/iPod touch (photos)

Research scientist and security expert Jonathan Zdziarski, recently discovered that the iPhone's restore mode still leaves personal data intact after preforming a restoration. Zdziarski writes, "While the restore process takes long enough to make most people assume the "disk" stored in NAND memory is formatted, it actually isn't.

As part of my work on a forensics toolkit for the iPhone, I decided to test whether user data could survive a full restore in iTunes. There have been rumors floating around that the entire NAND is flashed to 0xFF when the device is restored, but this is untrue - this only occurs in a different part of the iPhone (the NOR), but not the NAND. To confirm this theory, I first deleted any backups of my device and then forced the iPhone into recovery mode. From there, I performed a full firmware restore of my iPhone, ensuring that no backups or syncing were performed. I then performed a basic recovery of the raw disk using the forensic toolkit I put together, and analyzed it. What I discovered was that deleted mail, contacts, and pretty much all of my other personal information was still residing in unallocated space on the device. My personal information was safe and sound, and available to anyone with the right skills to recover it.

What does this mean? This means that when you do a restore through iTunes, it is only the equivalent of performing a "Quick Format" on your iPhone. And for those of you who use "Erase all Content and Settings," this has even less of an effect, as it doesn't even destroy the file system. In both cases, all of the personal information that was sitting on the device prior to the erase or restore is still left sitting in the unallocated blocks of the iPhone's NAND memory. To make matters worse, the restore process is likely to restore the original operating system files over the same location as the old ones, meaning very little data is likely to be corrupted at all."

Zdziarski goes on to report, "A verified detective from the Oregon State Police notified me that an out-of-the-box refurbished iPhone he purchased direct from Apple contained recoverable personal data including email, personal photos, and even financial information which he was able to recover using my forensic toolkit. The photos he sent me (see below) included the individual's name, which I've blurred out myself, but if you've ever had to return a defective iPhone, you might recognize this inbox. The more sensitive information hasn't been posted here for obvious reasons.

What you're looking at here is a partial list of the previous customer's files which were recovered from the iPhone's free space, and a screenshot that the iPhone took itself of the user's inbox, browser window, etc. when its user pressed the 'Home' button. Application snapshots are taken every time a program goes into the background to generate the zoom effects built into the device. And yes, the actual email and other personal data was also available."

Inbox
image























Facebook Activity
image
























Facebook Message
image
























Facbeook Profile
image
























Facebook Profile
image























So what can you do to make sure all your information is erased? Here are a few things to try:

1. Change passwords for all mail accounts that are synced to the iPhone or touch.
2. Make sure the device can no longer open the mail accounts.
3. Do an erase/restore of the iPhone or iPod touch, preferably using another computer or at least another account than the one the device was synced with.
4. Sync as many songs/videos of a non-compromising nature and nothing else to the newly restored device as will fit.
5. A good tool I recommend using to fill the drive up with data (songs/videos), is PhoneView. You can directly access the disk on your iPhone to totally fill it up.
6. After you have filled the drive up, do another erase/restore.
7. Repeat steps 4/5 with different content and erase/restore again. The more times you do this, the more times the data will be overwritten, thus having a less chance of recovery.

iPhoneView Utility
image















Final note: If you're having a problem with your iPhone/iPod touch and you are going to have Apple check it out, more than likely they will keep it and replace it with a refurbished unit, so make sure your iPhone/iPod touch is totally erased before you take it in. Oh, and one more thing. If the photos above look like they may be from your previous iPhone, please email us.

Mac Owners Support Group -- aka MacOSG -- was conceived by Dave Merten, the former 'Focus on Mac Support' guide at About.com. Since it's humble beginning as 'G5 Owners Support Group' back in February 2004, MacOSG has become one of the world's fastest-growing online Apple User Groups, dedicated to helping Mac users from all over the globe.

[url=http://www.macosg.com]MacOSG Home[/url] | [url=http://www.macosg.com/group/index.php]Support Forums[/url] | [url=http://macosg.com/group/viewtopic.php?t=78]Become a Member[/url]
[url=http://macosgpodcast.com]MacOSG Podcast[/url] | [url=http://mac611.com/]Mac611 Mobile Mac Support[/url]

Email us: admin AT macosg.com

image"Macsimum News" is a proud supporter of [url=http://planetgumbo.org/]Planet Gumbo[/url], which feeds the hungry. We urge you to help them in their efforts.

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Adobe InCopy CC 2018 13.0.0.123 - Create...
InCopy CC 2018 is available as part of Adobe Creative Cloud for as little as $19.99/month (or $9.99/month if you're a previous InCopy customer). Adobe InCopy CC 2018, ideal for large team projects... Read more
MacFamilyTree 8.2.5 - Create and explore...
MacFamilyTree gives genealogy a facelift: modern, interactive, convenient and fast. Explore your family tree and your family history in a way generations of chroniclers before you would have loved.... Read more
Hopper Disassembler 4.3.2- - Binary disa...
Hopper Disassembler is a binary disassembler, decompiler, and debugger for 32- and 64-bit executables. It will let you disassemble any binary you want, and provide you all the information about its... Read more
MacFamilyTree 8.2.5 - Create and explore...
MacFamilyTree gives genealogy a facelift: modern, interactive, convenient and fast. Explore your family tree and your family history in a way generations of chroniclers before you would have loved.... Read more
Hopper Disassembler 4.3.2- - Binary disa...
Hopper Disassembler is a binary disassembler, decompiler, and debugger for 32- and 64-bit executables. It will let you disassemble any binary you want, and provide you all the information about its... Read more
GraphicConverter 10.5.1 - $39.95
GraphicConverter is an all-purpose image-editing program that can import 200 different graphic-based formats, edit the image, and export it to any of 80 available file formats. The high-end editing... Read more
Delicious Library 3.7 - Import, browse a...
Delicious Library allows you to import, browse, and share all your books, movies, music, and video games with Delicious Library. Run your very own library from your home or office using our... Read more
Adobe Animate CC 2017 18.0.0.107 - Anima...
Animate CC 2018 is available as part of Adobe Creative Cloud for as little as $19.99/month (or $9.99/month if you're a previous Flash Professional customer). Animate CC 2018 (was Flash CC) lets you... Read more
Adobe After Effects CC 2018 15.0 - Creat...
After Effects CC 2018 is available as part of Adobe Creative Cloud for as little as $19.99/month (or $9.99/month if you're a previous After Effects customer). The new, more connected After Effects CC... Read more
Adobe Premiere Pro CC 2018 12.0.0 - Digi...
Premiere Pro CC 2018 is available as part of Adobe Creative Cloud for as little as $19.99/month (or $9.99/month if you're a previous Premiere Pro customer). Adobe Premiere Pro CC 2018 lets you edit... Read more

Darts of Fury guide - how to rise in the...
Darts of Fury is a new, immensely absorbing darts game from indie studio Yakuto. It's darts in its purest form, but collectible darts and other upgrades give this game an addictive edge that's hard to shake. As your progress out of the beginner... | Read more »
ICEY (Games)
ICEY 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: ICEY is a 2D side-scrolling action game. As you follow the narrator's omnipresent voice, you will see through ICEY's eyes and learn the... | Read more »
The best new games we played this week -...
We've made it, folks. Another weekend is upon us. It's time to sit back and relax with the best new releases of the week. Puzzles, strategy RPGs, and arcade games abound this week. There's a lot of quality stuff to unpack this week, so let's hop... | Read more »
Wheels of Aurelia (Games)
Wheels of Aurelia 1.0.1 Device: iOS Universal Category: Games Price: $3.99, Version: 1.0.1 (iTunes) Description: | Read more »
Halcyon 6: Starbase Commander guide - ti...
Halcyon 6 is a well-loved indie RPG with stellar tactical combat and some pretty good writing, too. It's now landed on the App Store, so mobile fans, if you're itching for a good intergalactic adventure, here's your game. Being a strategy RPG, the... | Read more »
Game of Thrones: Conquest guide - how to...
Fans of base building games might be excited to know that yet another entry in the genre has materialized - Game of Thrones: Conquest. Yes, you can now join the many kingdoms of the famed book series, or create your own, as you try to conquer... | Read more »
Halcyon 6: Starbase Commander (Games)
Halcyon 6: Starbase Commander 1.4.2.0 Device: iOS Universal Category: Games Price: $6.99, Version: 1.4.2.0 (iTunes) Description: An epic space strategy RPG with base building, deep tactical combat, crew management, alien diplomacy,... | Read more »
Legacy of Discord celebrates its 1 year...
It’s been a thrilling first year for fans of Legacy of Discord, the stunning PvP dungeon-crawling ARPG from YOOZOO Games, and now it’s time to celebrate the game’s first anniversary. The developers are amping up the festivities with some exciting... | Read more »
3 reasons to play Thunder Armada - the n...
The bygone days of the Battleship board game might have past, but naval combat simulators still find an audience on mobile. Thunder Armada is Chinese developer Chyogames latest entry into the genre, drawing inspiration from the explosive exchanges... | Read more »
Experience a full 3D fantasy MMORPG, as...
Those hoping to sink their teeth into a meaty hack and slash RPG that encourages you to fight with others might want to check out EZFun’s new Eternity Guardians. Available to download for iOS and Android, Eternity Guardians is an MMORPG that lets... | Read more »

Price Scanner via MacPrices.net

Save $100 on 13″ MacBook Airs, prices start a...
Adorama has 2017 13″ MacBook Airs on sale today for $100 off MSRP including free shipping. Adorama charges NY & NJ sales tax only: – 13″ 1.8GHz/128GB MacBook Air (MQD32LL/A): $899, $100 off MSRP... Read more
1.4GHz Mac mini available for $399, $100 off...
TigerDirect has the 1.4GHz Mac mini on sale today for $399 including free shipping. Their price is $100 off MSRP, and it’s the lowest price available for this model. Although currently out of stock,... Read more
21″ 2.3GHz iMac on sale for $999, save $100
MacMall has the 21″ 2.3GHz iMac (MMQA2LL/A) on sale today for $999 including free shipping. Their price is $100 off MSRP, and it’s the lowest price available for this model. Read more
12″ iPad Pros on sale for $50 off MSRP, no ta...
Adorama has 12″ iPad Pros on sale today for $50 off MSRP. Shipping is free, and Adorama charges sales tax in NY & NJ only: – 12″ 64GB iPad Pro: $749, save $50 – 12″ 256GB iPad Pro: $899, save $50... Read more
9″ iPads on sale for $30 off, starting at $29...
MacMall has 9″ iPads on sale for $30 off including free shipping: – 9″ 32GB iPad: $299 – 9″ 128GB iPad: $399 Read more
Apple restocks full line of refurbished 13″ M...
Apple has restocked a full line of Apple Certified Refurbished 2017 13″ MacBook Pros for $200-$300 off MSRP. A standard Apple one-year warranty is included with each MacBook, and shipping is free.... Read more
13″ 3.1GHz/256GB MacBook Pro on sale for $167...
Amazon has the 2017 13″ 3.1GHz/256GB Space Gray MacBook Pro on sale today for $121 off MSRP including free shipping: – 13″ 3.1GHz/256GB Space Gray MacBook Pro (MPXV2LL/A): $1678 $121 off MSRP Keep an... Read more
13″ MacBook Pros on sale for up to $120 off M...
B&H Photo has 2017 13″ MacBook Pros in stock today and on sale for up to $120 off MSRP, each including free shipping plus NY & NJ sales tax only: – 13-inch 2.3GHz/128GB Space Gray MacBook... Read more
15″ MacBook Pros on sale for up to $200 off M...
B&H Photo has 15″ MacBook Pros on sale for up to $200 off MSRP. Shipping is free, and B&H charges sales tax in NY & NJ only: – 15″ 2.8GHz MacBook Pro Space Gray (MPTR2LL/A): $2249, $150... Read more
Roundup of Apple Certified Refurbished iMacs,...
Apple has a full line of Certified Refurbished 2017 21″ and 27″ iMacs available starting at $1019 and ranging up to $350 off original MSRP. Apple’s one-year warranty is standard, and shipping is free... Read more

Jobs Board

Project Engineer, *Apple* Education Profess...
Project Engineer, Apple Education Professional Services Job Number: 113143353New York City, New York, United StatesPosted: Oct. 17, 2017Weekly Hours: 40.00 Job Read more
Commerce Software Engineer, *Apple* Media P...
Commerce Software Engineer, Apple Media Products Job Number: 113092072New York City, New York, United StatesPosted: Oct. 19, 2017Weekly Hours: 40.00 Job Summary With Read more
Engineering Manager, *Apple* Retail Enginee...
# Engineering Manager, Apple Retail Engineering Job Number: 58139948 Santa Clara Valley, California, United States Posted: 20-Oct-2017 Weekly Hours: 40.00 **Job Read more
*Apple* Retail - Multiple Positions - Apple,...
Job Description: Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
Commerce Engineer, *Apple* Media Products -...
Commerce Engineer, Apple Media Products (New York City) Job Number: 113028813New York City, New York, United StatesPosted: Sep. 20, 2017Weekly Hours: 40.00 Job Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.