LINE 7.6.0 (iOS / App Store)

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This application is available for iOS. This app is designed to be a ‘Swiss Army knife’ IM client. The latest build was released on Jun 26, 2017. Our latest check was performed on Mar 26th, 2017.

Findings Summary

Our examination revealed total 24 items, where were 11 DAR items and 13 DIT items found. Among DAR items were found 0 worst items, 9 bad items, 2 good items, and 0 best items. Among DIT items were found 1 worst item, 5 bad items, 7 good items, and 0 best items.

Below you find 3 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:

LINE reshapes communication around the globe, bringing you closer to your family, friends, and loved ones—for free. With voice and video calls, messages, and a limitless variety of exciting stickers, you’ll be able to express yourself in ways that you’ve never thought possible. With over 600 million users worldwide, LINE’s constantly expanding platform will continue to provide exciting new experiences and convenience.
LINE’s New Features

  • Make Group Calls with 200 People: Try our group call feature with members in chats.
  • Keep Your Things Close with Keep: Store messages, photos, and videos in Keep and share them easily with friends.

LINE’s Main Features

  • Free voice and video calls: Use your PC or smartphone to keep in touch with friends and family both at home and abroad, or hold a business meeting on the go!
  • Instant messaging anywhere: Conversation is just a tap away. Spice it up with LINE’s exciting collection of stickers or send pictures, videos, and even GPS coordinates to let your friends know what you’re up to.
  • A full-featured social networking service: Post your day-to-day activities to your Timeline or comment on your friends’ posts.
  • Group chats: Share important information with your co-workers or talk about mutual interests with your closest friends.
  • Find new expressions in the Sticker Shop: The world’s largest collection of stickers features famous and unique characters from around the world to let you express yourself just the way you want to.
  • Stay informed with LINE official accounts: Connect directly with your favorite celebrities and companies by friending their official accounts.
  • Make international calls with LINE Out: Make international calls to mobile phones and landlines at competitively low rates. You can even call friends who aren’t LINE users (available in certain countries only).
  • Get connected to new apps: LINE provides a gateway to entertainment and lifestyle apps that will keep you entertained and bring new convenience to your life.
  • We recommend that you use LINE with iOS versions 8.0 or higher with an iPhone 4S or above.

For more information about LINE, check out our official website.
http://line.me/en/

Protection levels.

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

Locally stored data groups include Message Information, Address Book ‘n’ Contact Information, Application Information, Notification Information, Credentials Information, Device Information, Media Information.
The average DAR value is 4.05 points (7.00 points of system protection and 1.09 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.

– Media Data (‘Message Information’ Group) – Any info like images, audios, videos, media notes, etc. This data item related to mentioned group meant to be all message, including SMS, MMS, social and IM messages with or without attachments,

– Contact Short Profile (‘Address Book ‘n’ Contact Information’ Group) – Name, Email ID, Phone number of contacts. This data item related to mentioned group meant to be info locally stored, cached or transferred over the network and belong to this application if it’s social even,

– GEO Data (‘Message Information’ Group) – Any GEO info stored as plain text referred to the places or tracked activity. This data item related to mentioned group meant to be all message, including SMS, MMS, social and IM messages with or without attachments,

– Messages (‘Message Information’ Group) – Different types of messages, conversations, except for SMS, MMS but including recipient and sender IDs and attachments. This data item related to mentioned group meant to be all message, including SMS, MMS, social and IM messages with or without attachments,

– 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,

– Application Configs (‘Notification Information’ Group) – Different configuration files created by your app, perhaps app permissions. This data item related to mentioned group meant to be part of content delivered as notification but separate from a main in-app content,

– Credentials (IDs) (‘Notification 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 part of content delivered as notification but separate from a main in-app content,

– 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.,

– Device Data (‘Device 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 details about your device

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,

– Account Media (‘Address Book ‘n’ Contact Information’ Group) – Full or reduced image of account. This data item related to mentioned group meant to be info locally stored, cached or transferred over the network and belong to this application if it’s social even

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 Application Information, Message Information, Location ‘n’ Maps Information, Address Book ‘n’ Contact Information, Call Information, Device Information.
The average DIT value is 4.88 points (4.62 points of system protection and 5.15 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’ GROUP #1 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.

– 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,

– Media Data (‘Message Information’ Group) – Any info like images, audios, videos, media notes, etc. This data item related to mentioned group meant to be all message, including SMS, MMS, social and IM messages with or without attachments,

– GEO Data (‘Message Information’ Group) – Any GEO info stored as plain text referred to the places or tracked activity. This data item related to mentioned group meant to be all message, including SMS, MMS, social and IM messages with or without attachments,

– Address Data (‘Message Information’ Group) – Home, work or another type of owner address stored by apps. This data item related to mentioned group meant to be all message, including SMS, MMS, social and IM messages with or without attachments,

– Device Data (‘Device 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 details about your device

Items’ GROUP #2 with average value 5.50 points (5 points of system protection, 6 points of own protection) means data protection levels have following definitions. Frankly talking, data is not available all the time or partially accessed 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 – SSL pinning (can be patched).

– GEO Data (‘Location ‘n’ Maps Information’ Group) – Any GEO info stored as plain text referred to the places or tracked activity. This data item related to mentioned group meant to be any geodata from trackers, social networks, GPS, etc.,

– Address Data (‘Location ‘n’ Maps Information’ Group) – Home, work or another type of owner address stored by apps. This data item related to mentioned group meant to be any geodata from trackers, social networks, GPS, etc.

Items’ GROUP #3 with average value 6.00 points (5 points of system protection, 7 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 – some techniques are available to developers to keep connection bypassing system settings, like proxy settings, etc., and own protection level means – tricks to bypass sniffing (hardly to be or can’t be patched to bypass), including non-common or unsupported protocols.

– Messages (‘Message Information’ Group) – Different types of messages, conversations, except for SMS, MMS but including recipient and sender IDs and attachments. This data item related to mentioned group meant to be all message, including SMS, MMS, social and IM messages with or without attachments,

– Contact Profile (‘Address Book ‘n’ Contact Information’ Group) – Full info about contacts including name email id, phone numbers, gender, linked accounts, geodata, stream and social activity. This data item related to mentioned group meant to be info locally stored, cached or transferred over the network and belong to this application if it’s social even,

– Contact vCard (‘Message Information’ Group) – Contact Profile info stored as vCard. This data item related to mentioned group meant to be all message, including SMS, MMS, social and IM messages with or without attachments,

– Call Stream (‘Call Information’ Group) – Audio or Video call streaming between two or more users. This data item related to mentioned group meant to be any call info stored, cached or transferred in plain text or media files,

– Call History (‘Message Information’ Group) – Some info about calls you made like phone number, name, date and time, and type of call (missed, placed, outgoing, etc.). This data item related to mentioned group meant to be all message, including SMS, MMS, social and IM messages with or without attachments

Items’ GROUP #4 with average value 0.00 points (0 points of system protection, 0 points of own protection) means data protection levels have following definitions. Frankly talking, data ‘as is’ and easily accessed (plaintext, no protection at all) where system protection level means – transferred (or supposed to be) ‘as is’ (plaintext) due to jailbreak/root or preinstalled non-trusted firmware, certificates, etc., and own protection level means – transferred as is, perhaps protection mode turns off or doesn’t exist or info reveal eventually.

– Account Media (‘Address Book ‘n’ Contact Information’ Group) – Full or reduced image of account. This data item related to mentioned group meant to be info locally stored, cached or transferred over the network and belong to this application if it’s social even

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.