Microsoft Excel 2.3 (iOS / App Store)

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This application is available for iOS. This app is designed to provide spreadsheet processor to manage content of files, organize and store all files in one place online as well as offline via official service Microsoft Excel with integrated service OneDrive. The latest build was released on Jul 10, 2017. Our latest check was performed on Apr 21st, 2017.

Findings Summary

Our examination revealed total 26 items, where were 10 DAR items and 16 DIT items found. Among DAR items were found 0 worst items, 6 bad items, 4 good items, and 0 best items. Among DIT items were found 0 worst items, 16 bad items, 0 good items, and 0 best items.

Below you find 2 infographics summarizing what we described above. Each image provides information about both DAR and DIT items.

 

 

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Everything presented below is related to well-known CWEs, such as Sensitive data leakage [CWE-200], Unsafe sensitive data storage [CWE-312], Unsafe sensitive data transmission [CWE-319]. You can read more about it here.

Now let’s go deeper and examine each data item’s protection level.

 

Application Description

Let’s cite the description of this application below:

*** Excel is ready for iPad Pro and looks amazing on the 12.9-inch screen. View Excel spreadsheets on iPad Pro for free. Or create and edit spreadsheets with a qualifying Office 365 subscription. Try it for free for 30 days. ***
The real Microsoft Excel app designed for iPad, iPhone and iPod touch.
Now your Excel spreadsheets look better than ever on your tablet and phone. When you edit or create spreadsheets, you can be confident they will look exactly how you want across PC, Mac, tablet and phone. Excel has the familiar Office look and feel along with an intuitive touch experience, so you’ll be up and running in no time.
On iPhone, iPad Air, and iPad mini, the core Excel experience, including viewing, creating, and editing spreadsheets, is free. Or unlock the full Excel experience with a qualifying Office 365 subscription. On iPad Pro, you need Office 365 to create and edit spreadsheets.
EXCEL SPREADSHEETS PROVIDE INSIGHT

  • Formulas, tables, charts, comments, PivotTables, sparklines, conditional formatting are all there, so you see the whole picture.
  • View email attachments and access all your Excel spreadsheets from OneDrive, Dropbox, iCloud, OneDrive for Business, or SharePoint.
  • Print an entire Excel workbook, a worksheet or a selected range to an AirPrint printer.

CREATE AND EDIT WITH CONFIDENCE

  • When you edit a spreadsheet, your content and formatting are maintained across all your devices – PC, Mac, tablet and phone.
  • Turn numbers into insights, with support for formulas, charts, tables, sorting, filtering, and more.
  • A special formula keyboard lets you add numbers and formulas rapidly – much easier than with the standard touch keyboard.
  • Get tasks done faster, with multitasking. Run Excel for iPad side by side with other apps (requires iOS 9).

REQUIREMENTS
iPad Pro: To create or edit documents, you need a qualifying Office 365 subscription*, which also gives you access to the full Office experience.
iPad, iPhone, iPod Touch: To create or edit documents, sign in with a free Microsoft account. To unlock the full Office experience and to access and save documents in OneDrive for Business or on SharePoint, you need a qualifying Office 365 subscription*.
*To make an in-app purchase of an Office 365 Home or Personal subscription, open the app. In the document picker screen, tap Upgrade. Subscriptions begin at from $6.99 a month in the US, and can vary by region. With an Office 365 subscription, you get access to all features in Word, Excel, and PowerPoint on iPad, iPhone, and iPod touch, and you can install Word, Excel, PowerPoint, Outlook, and OneNote on PCs or Macs.
Office 365 subscriptions purchased from the app will be charged to your iTunes account and will automatically renew within 24 hours prior to the end of the current subscription period, unless auto-renewal is disabled beforehand. To manage your subscriptions or to disable auto-renewal, after purchase, go to your iTunes account settings. A subscription cannot be cancelled during the active subscription period.
Privacy Policy: http://go.microsoft.com/fwlink/?LinkID=507539. Terms of Use: http://go.microsoft.com/fwlink/?LinkID=390698.

 

Protection levels.

Locally stored data (Data-at-Rest, DAR).

Locally stored data groups include Application Information, Credentials Information, Documents Information, Media Information, Storage Information.
The average DAR value is 4.70 points (7.00 points of system protection and 2.40 points of own protection). It is higher than a typical value (3.5 points, where’s 7 points of system protection and 0 points of own protection).

Items’ GROUP #1 with average value 3.50 points (7 points of system protection, 0 points of own protection) means data protection levels have following definitions. Frankly talking, extra data found that shouldn’t be accessed where system protection level means – root/jailbreak is required but not possible without wiping device data, and own protection level means – stored as is.

– Application Events (‘Application Information’ Group) – App events referred to user actions ‘n’ activities were done. This data item related to mentioned group meant to be any info related to the app, app settings, including installed apps or installers,

– Credentials (IDs) (‘Credentials Information’ Group) – Only account IDs like app or 3rd party user IDs including emails, phone number, usernames, etc. (depends on apps). This data item related to mentioned group meant to be any types of credentials including basic (IDs only), passwords, tokens, etc.,

– Local ‘n’ Network Paths (‘Documents Information’ Group) – Paths about local or networks directories, folders, files. This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format,

– Application Configs (‘Application Information’ Group) – Different configuration files created by your app, perhaps app permissions. This data item related to mentioned group meant to be any info related to the app, app settings, including installed apps or installers,

– Document List (‘Documents Information’ Group) – The list of documents stored local or synchronized over the Internet. This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format,

– Document Details (‘Documents Information’ Group) – Common info about documents synchronized or stored locally (properties like size, date and time, etc.). This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format

Items’ GROUP #2 with average value 6.50 points (7 points of system protection, 6 points of own protection) means data protection levels have following definitions. Frankly talking, protection and privacy issues are still possible but might involve interaction with an app code where system protection level means – root/jailbreak is required but not possible without wiping device data, and own protection level means – data is not available in backups.

– Screen Snapshots (‘Media Information’ Group) – Screenshots of your device screen running certain apps; common as an iOS app multitasking feature (app swipes) or browser tab swipes. This data item related to mentioned group meant to be any data like photo, image, video, audio,

– Sync Documents (‘Documents Information’ Group) – Documents synchronized or locally stored on your device as is or converted into another file formats (like.pdf or set of separated jpg file per each .pdf file. This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format,

– Credentials (Tokens) (‘Storage Information’ Group) – Different tokens used to get access to your account, except for passwords but including app or 3rd party tokens, secret keys, etc. (usually give full access to your account). This data item related to mentioned group meant to be any information referred to storage like credentials, settings, documents and so on,

– Sync Documents (‘Storage Information’ Group) – Documents synchronized or locally stored on your device as is or converted into another file formats (like.pdf or set of separated jpg file per each .pdf file. This data item related to mentioned group meant to be any information referred to storage like credentials, settings, documents and so on

Also, keep in mind, using jailbroken device means the system protection level is 0 points and you’re using out-of-date iOS < 8.3 the system protection level is 2 points. If some data marked as shareable via iTunes, then the system protection level is 4 points.

Transferred data (Data-in-Transit, DIT).

Transferred data groups include Analytics ‘n’ Ads Information, Application Information, Credentials Information, Documents Information, Storage Information.
The average DIT value is 4.50 points (5.00 points of system protection and 4.00 points of own protection). It is higher than a typical value (4 points, where’s 4 points of system protection and 4 points of own protection).

Items with average value 4.50 points (5 points of system protection, 4 points of own protection) means data protection levels have following definitions. Frankly talking, data available if it’s allowed only and may require user action where system protection level means – some techniques are available to developers to keep connection bypassing system settings, like proxy settings, etc., and own protection level means – bypassed by fake/stolen root certificates.

– Device Data (‘Analytics ‘n’ Ads Information’ Group) – Device ID, Device Name, Device OS Name and Version, and jailbroken/root status. This data item related to mentioned group meant to be any info related to analytics services like Flurry, Google Analytics, etc. or advertisements,

– Application Configs (‘Application Information’ Group) – Different configuration files created by your app, perhaps app permissions. This data item related to mentioned group meant to be any info related to the app, app settings, including installed apps or installers,

– Credentials (IDs) (‘Credentials Information’ Group) – Only account IDs like app or 3rd party user IDs including emails, phone number, usernames, etc. (depends on apps). This data item related to mentioned group meant to be any types of credentials including basic (IDs only), passwords, tokens, etc.,

– Credentials (Passwords) (‘Credentials Information’ Group) – Well-known passwords or PINs you’re using to get access to your account (usually it is worse than tokens because it gives full access to your account). This data item related to mentioned group meant to be any types of credentials including basic (IDs only), passwords, tokens, etc.,

– Credentials (Tokens) (‘Credentials Information’ Group) – Different tokens used to get access to your account, except for passwords but including app or 3rd party tokens, secret keys, etc. (usually give full access to your account). This data item related to mentioned group meant to be any types of credentials including basic (IDs only), passwords, tokens, etc.,

– Device Data (‘Credentials Information’ Group) – Device ID, Device Name, Device OS Name and Version, and jailbroken/root status. This data item related to mentioned group meant to be any types of credentials including basic (IDs only), passwords, tokens, etc.,

– Document List (‘Documents Information’ Group) – The list of documents stored local or synchronized over the Internet. This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format,

– Local ‘n’ Network Paths (‘Documents Information’ Group) – Paths about local or networks directories, folders, files. This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format,

– URLs (‘Documents Information’ Group) – Different types of URLs referred to your files stored in clouds, profiles, social accounts, media files available online, etc. This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format,

– Document Details (‘Documents Information’ Group) – Common info about documents synchronized or stored locally (properties like size, date and time, etc.). This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format,

– Sync Documents (‘Documents Information’ Group) – Documents synchronized or locally stored on your device as is or converted into another file formats (like.pdf or set of separated jpg file per each .pdf file. This data item related to mentioned group meant to be any documents stored locally, uploaded, downloaded, synchronized in any file format,

– Credentials (Tokens) (‘Analytics ‘n’ Ads Information’ Group) – Different tokens used to get access to your account, except for passwords but including app or 3rd party tokens, secret keys, etc. (usually give full access to your account). This data item related to mentioned group meant to be any info related to analytics services like Flurry, Google Analytics, etc. or advertisements,

– Application Events (‘Application Information’ Group) – App events referred to user actions ‘n’ activities were done. This data item related to mentioned group meant to be any info related to the app, app settings, including installed apps or installers,

– Credentials (IDs) (‘Storage Information’ Group) – Only account IDs like app or 3rd party user IDs including emails, phone number, usernames, etc. (depends on apps). This data item related to mentioned group meant to be any information referred to storage like credentials, settings, documents and so on,

– Credentials (Passwords) (‘Storage Information’ Group) – Well-known passwords or PINs you’re using to get access to your account (usually it is worse than tokens because it gives full access to your account). This data item related to mentioned group meant to be any information referred to storage like credentials, settings, documents and so on,

– Credentials (Tokens) (‘Storage Information’ Group) – Different tokens used to get access to your account, except for passwords but including app or 3rd party tokens, secret keys, etc. (usually give full access to your account). This data item related to mentioned group meant to be any information referred to storage like credentials, settings, documents and so on

Keep in mind if you’re using out-of-date iOS < 9.0, the system level equals 2 points instead of 4. It means your data can be stolen without involving your actions.

Privacy Policy

Full application privacy policy is available here.

You may find privacy policy details proceeding the link above to compare developer’s vision on data protection with our results.