TamTam — free chats & channels 1.2.4 (Android / Google Play)

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This application is available for Android.  This app is desgined as entertainment social network. The latest build was released on June 9, 2017. Our latest check was performed on Feb 26th, 2017.

Findings Summary

Our examination revealed total 29 items, where were 19 DAR items and 10 DIT items found. Among DAR items were found 0 worst items, 19 bad items, 0 good items, and 0 best items. Among DIT items were found 2 worst items, 0 bad items, 5 good items, and 1 best item.

Below you find 4 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:

Stay connected with those you care about even with low Internet connection. Thousands of stickers will help to tell about your emotions and feelings, and if you are not in the mood to chat — we have channels!

NO PASSWORD: All you need to start chatting is the phone number. Registration will take few clicks, and for those who have the OK.RU-app it will take just 1 click. To start chatting, simply enter the person”s name in the search or select a contact from your phone book. Welcome your found friend with a sticker, a photo or audio message!

250 MLN PEOPLE: to start chatting just type your friend’s name in a search field and find him or her among 250 millions of contacts in a search base;

OFFLINE ACCESS: you can read chat history and watch media files without connecting.

FREE AND NO SPAM: all communications are free while Internet connection is available (2G / 3G / 4G or WiFi).
CHATS

  • Group chats: add friends, family or colleagues into group chats;
  • Chat settings: change background, set up notifications depending on chat activity and your availability;
  • Reliability: works even with a poor Internet connection: write your message — it will be sent automatically when the connection will appear again;

STICKERS

  • Live stickers: send unique stickers that shows cool animation by clicking on the Play button;
  • Constant updating: every day we add new stickers and show best of them in a special channel;
  • Convenient search: just type a word or emoji that reflects an emotion that you need and you’ll see a list of stickers that match your request;

CHANNELS

  • Subscribe: read about upcoming events and updates in the TamTam info channel and look for more channels later;
  • Create: start your own channel, share your thoughts with friends privately or with broader audience by choosing public channel;

 

Protection levels.

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

Locally stored data groups include Credentials Information, Account Information, Message Information, Application Information, Personal ‘n’ Private Information, Log Information, Analytics ‘n’ Ads Information.
The average DAR value is 3.50 points (7.00 points of system protection and 0.00 points of own protection). It equals to a typical value (3.5 points, where’s 7 points of system protection and 0 points of own protection).

Items 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.

– 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 (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.,

– Account Data (‘Account Information’ Group) – Basic info about account like name, a list of sub-account (e.g. financial or other) and some linked data like a phone number. This data item related to mentioned group meant to be any info related to profiles, basic credential IDs like email or username or phone number plus some more info depends on applications,

– Media URLs (‘Account Information’ Group) – URLs related to media info such as stream media or profile’s media, etc. This data item related to mentioned group meant to be any info related to profiles, basic credential IDs like email or username or phone number plus some more info depends on applications,

– 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,

– Media URLs (‘Message Information’ Group) – URLs related to media info such as stream media or profile’s media, etc. This data item related to mentioned group meant to be all message, including SMS, MMS, social and IM messages with or without attachments,

– Account Data (‘Message Information’ Group) – Basic info about account like name, a list of sub-account (e.g. financial or other) and some linked data like a phone number. 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 (‘Message Information’ Group) – Name, Email ID, Phone number of contacts. This data item related to mentioned group meant to be all message, including SMS, MMS, social and IM messages with or without attachments,

– Account Settings ‘n’ Configs (‘Application Information’ Group) – Information about your account settings and configurations. This data item related to mentioned group meant to be any info related to the app, app settings, including installed apps or installers,

– Account Details (‘Account Information’ Group) – Full info about your account including account membership, expiration, profile, linked data and account, etc. This data item related to mentioned group meant to be any info related to profiles, basic credential IDs like email or username or phone number plus some more info depends on applications,

– Tracked Data ‘n’ Favorites (‘Personal ‘n’ Private Information’ Group) – Any favorites data or tracked data marked as desirable by users and for users (Means, user is on FB messenger, Viber, bank client or favourite hotel, room type, flight route, airline). This data item related to mentioned group meant to be any personal and private info is not grabbed from the 3rd party social networks or your IDs,

– 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 (‘Account Information’ Group) – Any info like images, audios, videos, media notes, etc. This data item related to mentioned group meant to be any info related to profiles, basic credential IDs like email or username or phone number plus some more info depends on applications,

– Environment (‘Log Information’ Group) – Different info about the environment of the device including apps lists, device info, OS name and versions, updates, a list of users, network details, etc. This data item related to mentioned group meant to be any information stored in local or network logs,

– Application Configs (‘Log Information’ Group) – Different configuration files created by your app, perhaps app permissions. This data item related to mentioned group meant to be any information stored in local or network logs,

– Account Settings ‘n’ Configs (‘Log Information’ Group) – Information about your account settings and configurations. This data item related to mentioned group meant to be any information stored in local or network logs,

– Media Data (‘Analytics ‘n’ Ads Information’ Group) – Any info like images, audios, videos, media notes, etc. This data item related to mentioned group meant to be any info related to analytics services like Flurry, Google Analytics, etc. or advertisements,

– 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,

– Media Stream (‘Account Information’ Group) – Any info like images, audios, videos, media notes, etc. This data item related to mentioned group meant to be any info related to profiles, basic credential IDs like email or username or phone number plus some more info depends on applications

Keep in mind if you’re using some Android devices such Samsung, LG or another device with an unlocked or non-locked loader that allow rooting your device without user action, the system level equals 6 points instead of 7. It means your data can be stolen without involving your actions.

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

Transferred data groups include Credentials Information, Message Information, Account Information, Address Book ‘n’ Contact Information.
The average DIT value is 4.55 points (4.20 points of system protection and 4.90 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 6.50 points (6 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 – MITM prevented or fake certificate importing prevented, but plaintext non-protected traffic is intercepted, 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.

– 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 (Activation IDs) (‘Credentials Information’ Group) – Two-factor activation code received in messages. 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.,

– 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,

– Account Data (‘Account Information’ Group) – Basic info about account like name, a list of sub-account (e.g. financial or other) and some linked data like a phone number. This data item related to mentioned group meant to be any info related to profiles, basic credential IDs like email or username or phone number plus some more info depends on applications,

– Tracked Data ‘n’ Favorites (‘Address Book ‘n’ Contact Information’ Group) – Any favorites data or tracked data marked as desirable by users and for users (Means, user is on FB messenger, Viber, bank client or favourite hotel, room type, flight route, airline). 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

Items’ GROUP #2 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.

– 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,

– Media Data (‘Account Information’ Group) – Any info like images, audios, videos, media notes, etc. This data item related to mentioned group meant to be any info related to profiles, basic credential IDs like email or username or phone number plus some more info depends on applications

Keep in mind if you’re using out-of-date Android < 7.0, the system level equals 4 points instead of 6. It means your data can be stolen with a crafted preinstalled certificate on the device or if someone makes you install a certificate. Also, if you’re using out-of-date Android < 5.0, 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.