The backup’s file name is also derived from the user’s password. (ABCDEFGH serves as placeholder for an arbitrary Threema ID.). The link in my verification email is missing, expired, or invalid Why a link may be missing, expired, or invalid If you can't find the verification link in your email, it's likely that it's being blocked by your email settings or a security filter and may need to be adjusted. on a public wireless network) cannot even learn who is logging in and who is communicating If a group Please bear in mind that all images in threema are saved on your device in an encrypted directory of threema, not in the normal camera app of your smartphone. If only a certain contact is affected by the push issue, please make sure that push notifications for the contact in question are not disabled (navigate to the contact details, scroll down, and turn “No push notifications” off if this setting is turned on). manually. 2019: Audit by Lab for IT Security of the Münster University of Applied If a group is asynchronous, we recommend resynchronizing it Yes. If a Threema ID doesn’t connect to the server for more than three months, the ID is considered inactive and will be grayed out. 14 days have elapsed (whichever happens first). This setting controls how prominently notifications are displayed. Export”. Alternatively, you can add the contact’s Threema-ID to the blacklist in “Threema > Settings > Privacy > Blacklist.”. There, tap the quotation mark icon, and the quoted message will show up above the text input field. Set an ID Wie ihr eine.. If the inactive ID connects to the server again, it will (after up to 24 hours) no longer be grayed out. With Threema Gateway, Threema can be integrated into existing software applications. for a Google Play Store version. Please note that the system requirements must be met by both the caller’s and the callee’s device in order to make voice or video calls. Instead of a phone number, the Threema ID serves as unique identifier. Neither contents nor details about messages are transmitted via FCM (the FCM payload is empty), and all of Firebase’s tracking and analysis components have been removed. It consists of 80 digits and letters in groups of four characters (separated with dashes). our servers but directly on users’ devices. open the My Profile tab, and select “Delete Data and ID.”, Ask your chat partner if he or she can send you the messages/media files once more, or if he or she can. Therefore, we recommend to either create iTunes backups instead of iCloud backups or to exclude Threema if you must create iCloud backups. store account (i.e., the same Apple ID, Google or Microsoft account) you used for the initial purchase. 3.2. audience -- is the token intended for me? chats for which no individual notification settings are defined. In the chat overview, swipe from right to left on a chat to archive it. Threema is the world’s best-selling secure messenger. On Android, there is also a pin icon displayed: Chats can only be archived in Threema for Android at the moment. Maybe your ID has been unintentionally blocked by the recipient. ), In the Share Sheet that appears, tap “Gift App…”, and follow the on-screen instructions, Make sure that the Threema ID displayed for the contact you want to reach is still actively used by the recipient. note: If you have already entered the code manually, there’s no need to tap the link since your phone number has If you wish to stay informed about Threema-related topics, you can add the Threema Channel to your contacts and receive interesting news directly within the Threema app. Also, the deleted ID can still If you know that someone is using Threema, but they are missing or are marked with a red dot, it is because of one of the following reasons: If a contact has linked a phone number or email address to their ID that is contained in your address book, the contact shows up in Threema’s contact list (provided that synchronization is enabled) and is labeled with two orange dots. Obtain from an ID backup using. incoming notifications trigger. You will get a string like the following: The public key is the 64 hex characters at the end of the string. Steps to Reproduce (for bugs) Add a contact through Threema Web Enter an invalid ID (e.g. Like single chats, group chats are end-to-end encrypted in Threema. Malware that runs in the background on your device can intercept and falsify data without being noticed. new name will be used. settings for the preview to be shown. With Threema The recipient can disable read receipts in Threema’s settings (Privacy). Make sure you are using the same Google Account as when you purchased Threema. The secret is the same no matter whether the combination of (sender private key + recipient public key) or (sender public key + recipient private key) is used. Use Threema to send files of any type (PDF, animated GIF, MP3, DOC, ZIP, etc.). Once the session has ended, all synchronized messages are deleted in the browser. However, we don't recommend this. If the real contact name cannot be shown, the “public nickname” is displayed instead. For detailed technical information in regard to Threema calls’ security, please refer to the Cryptography Whitepaper. already set), Tap “Pick image” (or tap the current profile picture if one is already set), and select an existing picture, The technical details of Threema Web’s architecture are documented here. We strive to provide both security and performance to all our users independently of their devices, which is why the sending of videos is currently possible within the following limits: Android: Irrespective of its duration, the video's file size cannot exceed 50 MB. Please note that exported chats cannot be imported into Threema again; to Restoration will not be successful in that case. Please note: If you send an image as file, its EXIF tags (possibly containing information such as the date and Please create a data backup if your new mobile device runs on the same OS as your old one and you would like to keep your chats. The latest version of Threema runs on iOS 10 and up. Threema Web is currently available in English and German. When you switch your device (or reset it to factory settings), you can transfer (or restore) your Threema ID and continue to use the app as usual. choose between the following options: Please note: Messages are not deleted automatically but only when tapping the respective “Delete” button. Android: In a chat, tap on the paperclip icon, and select Ask your chat partners to delete your old ID from their contact list. They can apply for Emirates ID through the official website or through one of the accredited typing centres. On Android, distribution lists can be used to send messages to multiple recipients. The name of unsynchronized contacts can be changed in the contact details: Verification levels are included in both Threema Safe and data backups, they are, however, not included in ID exports. Due to restrictions by Xiaomi, there is no way for Threema to automatically adjust the notification-channel Threema, on the other hand, generates as little data as technically possible and only Please make sure you are using the latest version of a compatible browser. The sole protection of content is insufficient because metadata If you are an iOS user, make sure to grant Threema access to your contacts (iPhone Settings > Privacy > Contacts > enable Threema). list”. If there is no Internet connection immediately after a push notification To transfer your ID, you need a Threema Safe backup. device: On your old phone, navigate to “My profile,” and select “Delete ID.”. are end-to-end encrypted. By default, the synchronization is disabled and no address book data will be read. No chats or images. If you should Select your previously created backup and tap on “Restore”. Validate the ID token signature or HMAC; 3. EU users who are under 16 years of age are required by law to obtain parental consent if they wish to link a phone number and/or email address with their Threema ID. Individual notification settings for group chats. on your master key. If you are the administrator, you can add members by tapping “+.”. If no package is available for your operating system, you can also compile NaCl from source as described on the NaCl Installation page. If you were a group administrator yourself, the groups in question must be re-created or, The call connection is established using Threema messages in the background; therefore, voice calls are just as, If possible, a direct connection between caller and callee is established (peer to peer) after the connection buildup, Calls with IDs that are not contained in the contact list are routed through the Threema server in order to obscure the IP address, Because a constant bit rate is used for audio encoding, no conclusions about the content can be drawn from the size of the transmitted data packets. If there is already a In that case, it is possible that you are prompted for the master key passphrase again. There are two ways to share files using Threema on iOS. New groups can be created using the “New group” item in the main menu on Android and using the “Compose message” button on iOS. might prevent it from focussing. The complete validation process is specified in the OpenID Connect Core … If you want to remove a phone number or email address Voice calls: Threema 4.22 for Android or above on Android 4.1 or above, Video calls: Threema 4.4 for Android or above on Android 4.4 or above. Reinstalling Threema on the same operating system. Move the backup file to your new phone (by using a computer for instance). Threema uses the Apple Push Notification Service (APNS) to inform recipients with iOS about new messages while the app is closed or in the background. Instead of a phone number, the Threema ID is used as unique identifier. For detailed technical information in regard to Threema Web’s security, please refer to the Cryptography Whitepaper. data: the encrypted message data (make sure to enter it all on one line). A button will appear that allows you to reset the app data. The state-of-the-art data centers include biometric access control, full-height turnstiles, video surveillance, emergency power systems, fire protection, fail-safe air-conditioning, and a fully redundant Internet connection. immediately remove your profile picture from someone’s contact list by tapping “Send profile picture now” in the You can then install the update by confirming the notification. This algorithm is memory- and computation-intensive in order to render brute force attacks challenging. Only the following identity documents can be used for the verification. restore it. In this case, you will not receive push notifications. You can fully control who is allowed to see your profile picture. As some contact information is necessary in order to communicate with other users, Threema creates a key pair for this purpose, which includes a private key and a public key. The contacts in question haven’t set a profile picture, or they don’t share it with you. This will keep these files accessible to you even if you delete the app. There are basically three steps to it: 1. fingerprint, Use Threema Safe to anonymously backup your most important Threema data, Use Threema on tablets and devices without SIM card, Chat completely anonymously – no phone number required, Automatically disable notifications outside of working hours. When this has completed, start Threema again. Obtain from validation log or directly from the QR code. For detailed technical information about the cryptography in Threema, read the Cryptography Whitepaper. NeoReader. Android: Tap the title bar in the group chat, then tap the three vertical dots, and select “Clone group”. In contrast to other messengers, your identity in Threema isn't tied to a phone number (cf. To find out how Threema stacks up against other messengers like WhatsApp, Signal, or Telegram, please refer to our comprehensive messenger comparison. Enter Verification code. information is always hashed, both in transit and on disk. A Threema ID that has been permanently deleted is struck through and considered invalid. To remove your profile picture, proceed as follows: For privacy reasons, profile pictures are not stored on a server. iOS: Enter a wrong code If you don’t allow video calls, no one can send their video to you, and your can’t send anyone you video. With Private Chats, you can protect individual chats with a PIN code. Scan this QR code to verify its key: Note that in general, QR codes for ID verification should not be sent over the Internet but Use threema_getprivkey as follows: IMPORTANT: keep the private key confidential and destroy it after use! contact’s detail view. The length of the encrypted data equals ([type = 1 byte] + [authenticator size = 16 bytes] + message text length + padding). Download the source code of the validation programs. Groups created by an iOS user are deleted as soon as the last member has left the group. Groups can contain up to 256 members. Please If you have accidentally answered “No” when asked whether you want to allow Threema to access your photos, you can grant permission as here: iOS Settings > Privacy > Photos > Threema. By default, it These providers don’t share license data. Here is an explanation of the most important permissions that Threema for Android requires: Yes, that is possible if you buy Threema from our own shop. If you are having trouble scanning a QR code, please make sure the camera is not too close (below 10 in/25 cm), which All messages directed to you will be individually encrypted with your public key on the sender's device. Give away Threema to your loved ones in a few simple steps: For more detailed instructions, please refer to Apple’s guide. Deactivate “Play notification sound” to mute notifications; you will still receive notifications, but no notification sound is played. Threema - Android App 4.5 Deutsch: Mit Threema chatten Sie dank Verschlüsselung abhörsicher mit Ihren Freunden. contacts or group chats are stored in a decentralized way on user devices, instead of on a Threema server. In general, the setting Low should prevent popup notifications from being displayed. then will display an “Install” button instead of a “Buy” button. settings for you. kam gleich beim ersten Mail anklicken. In Threema’s main screen, open the main menu by tapping the three horizontal dots in the top right corner, and select “Backups”, In Threema’s main screen, open the “My Profile” tab, and tap on “Threema Safe”, In Threema’s main screen, tap the three dots in the lower right, and navigate to “Settings > Backup > Threema Safe”. Hence, it is impossible to move licenses from one platform to another. tokens of the group members). This notification is shown if you're using the Android version of Threema and have set a passphrase In these rare cases, a generic notification (“Message” or “Group Message”) will be displayed. When starting Threema the next time, you can use the setup wizard to create a new ID or to restore a backup. attacks can be effectively prevented: If you receive a message of a confirmed contact (i.e., verification level 3), you can be sure that it wasn't spoofed or read by a third Default notification settings for group chats. To prevent that your Threema ID, your contacts, and your groups (as well as other data and some settings) are lost if you ever happen to lose access to your device, Threema Safe regularly creates an anonymous and encrypted backup of this data on the Threema server or on another server of your choice. OneNote uses Microsoft account (formerly Live Connect) and Azure Active Directory to provide secure access to OneNote notebooks. If Threema is listed, delete the data of your Google Play Store and Download Apps on your phone according to. Set a profile picture as follows: The notification priority can be adjusted in Threema > Settings > Sound & Notification > Priority. Simply delete the old number on the “My Profile” tab and type in the new one — your ID is now linked to the right number. privkey: your private key. Biometric Identity Verification Biometric facial and finger print verifications. To use Threema Web the next time on the same computer, you can simply enter this password (instead of scanning the QR code again). You can get rid of duplicate contacts by deactivating the setting “Show inactive IDs” (Android) or by activating the setting Hide Stale Contacts (iOS) in Settings > Appearance. The preferred image quality can be adjusted in Threema > Settings > Video Calls > Preferred Image Quality. troubleshooting Read here how you can get rid of duplicate contacts in your own address book. First, tap-and-hold the desired (media) file in the chat; then, tap the floppy disk symbol. to protect your ID in case of theft of your device. Profile pictures are disabled (in Settings > Appearance). In this case, you can add your Threema contacts manually (by typing in their IDs or scanning QR codes). Ask the recipient to check this in your own contact's details (iOS: Contacts > Contact details > “Block contact” (at the very bottom); Android: Threema > Contacts > Tap and hold on the contact > Settings > “Deblock contact”). iOS: Navigate to the “My Profile” tab, and tap on the QR code. Instead of a phone number, the Threema ID (a randomly Emirates ID is an identity card of the UAE’s citizens and residents. To open it, tap the camera icon in the text field. delete the chat history, tap and hold the chat, and then tap the trash-bin icon. This ensures that even if a weakness is discovered in the phone's random number generator, the private keys of the users cannot be cracked. Using Threema ought to generate as little data on servers as possible – this is part of the concept. You can also choose to use Threema without providing a phone number and email address. Link your new ID with the same email address and phone number as your old ID. To agree or disagree with the selected message, tap “agree / thumbs up” or “disagree / thumbs down”, respectively. (You can also check for and install updates by navigating to “⋮ > Settings > About Threema > Check for Updates” in Threema’s main view.). Only the intended recipient is able to decrypt and read a message. Should the problem persist, please run WebRTC Diagnostics, and send in the result: We will then analyze the problem and get back to you as soon as we can. Please also make sure that you have not blocked the recipient yourself. In the chat, the quoted message is indented and prepended to your new message so that it’s evident what you are referring to. Threema can be used without providing any personal Scanning QR codes is a means for confirming contacts' identities. All messages and media are transmitted end-to-end encrypted in Threema. Your raw private key can be extracted from a Threema ID backup (a string in the format "ABCD-EFGH-IJ12-..."). ** Unfortunately, our verification partner companies are currently experiencing issues with the verification of Swedish citizens. decentralized manner on users’ devices, not on a server. C program that can decrypt an end-to-end encrypted Threema message given the raw data, nonce and keys. If you want to be extra sure, you can obtain it from the QR code displayed by the other person's Threema app (note that it has to be the other person's public key, not your own!). For that reason, data like e.g. Threema Safe encrypts the backup data using the password you specify. Please follow the troubleshooting instructions for Android or iOS. That’s your decision – Threema can be used without any address book access whatsoever. communication in business contexts. the Android version in our store, you can download and then reinstall it with the same license key. To avoid a losing your data, please follow the steps below: Did you purchase Threema in the Google Play Store, but can't see updates or an install button in the Google Play Store? Disable the “Block Unknown” option in Threema > Settings > Privacy to receive all group-chat Please decline that option every time. Threema contains a "Validation Logging" feature that makes it possible for anyone to independently confirm that messages sent via Threema are end-to-end encrypted using the NaCl Networking and Cryptography library. In and of itself, Threema does not provide an option to save chats on iCloud. This will reset the status, and you will be able to try again. Rollout and app confguration via MDM software: Threema Work is suited for distribution via MDM system. All you have to do to use Threema Web is connect your mobile device with your You can then compose and send your message like you usually would. This key generation is performed directly on your phone, without any server interaction. A very simple Makefile to compile the two programs. Pickup: A connection has been established; you can talk to the callee. That way, man-in-the-middle Please follow the troubleshooting instructions for Android or iOS. If automatic updates are disabled, you can manually install updates in the Google Play Store app (by tapping the menu icon, navigating to My Apps > Threema and then tapping “Update”). persistent notification. Please Tap on “Delete data” and uninstall the app. If Threema was downloaded from the Threema Shop, you will receive a notification in the app once an update is available. Whitepaper. This allows you to make end-to-end encrypted voice or video calls without disclosing your phone number. Pre-verification for unsupported states/countries; Verification requirements ★ Verification level requirements; Document requirements for verification; Image requirements for ID documents; File requirements for uploads ("Invalid Parameters" error) Tips for scanning or photographing ID documents; Getting verified ★ Verifying your account privileges, nor can administrator privileges be granted to multiple users. At no point are the hashes or the results of the synchronization written to disk. Federal Government Personal Identity Verification Card (PIV) Acceptable Forms of Invalid or Expired ID. For common operating systems, a ready-made package is available from the vendor. A Threema Safe backup, on the other hand, contains also your group memberships (besides other data) and is platform-independent. If you are sure about your chat partner's ID, then there's no way for an attacker to spoof or intercept/decrypt a message from or to your chat partner. Wie kann ich jetzt jemanden einladen, ohne die Telefonnummer oder E-Mail Adresse zu senden? Opens the chat with the specified ID. Then, navigate to “Block contact” in the side menu. the server, groups can become asynchronous, e.g., if a user restores a data backup On top of that, scanning someone's QR code is a Threema ist ein alternativer Messenger zu WhatsApp, der besonders sicher sein soll. transfer your chats to another device (or to restore them later on the current device), use a data backup. Android: In the Contacts tab, tap the “New contact” button, and select “Scan ID”. But when i am calling using different method which is … It will not be found during synchronization anymore as the links have been removed. If there are unresolved issues in a chat, you can use the “pin” feature to create a visual reminder. Finding (and, of course, decrypting) the backup of a given ID is only possible if the backup’s password is known. You can continue to use older Threema versions on your pre-iOS 10 device, but you won't be able to update to newer versions. multiple chat messages at once, tap and hold one message, select the others you wish to delete, and then tap the Only the group administrator can initiate a synchronization (in the group's detail view). The default notification settings apply to all group “~Bob”). Moving data backups between devices is (If you don’t remember your backup’s password, it cannot be recovered.). Threema cannot change this. The next time you send someone a allows to uniquely identify individuals, analyze their behavior, determine their circles of friends, detect their Starting with version 4.0, there’s a camera built into Threema for Android. Editable inventory data can be modified or deleted at any time in the Threema app (in the “My ID” tab) with immediate effect (see this FAQ article for more information). This can easily be prevented by. This notification has no other purpose and is only required because of the aforementioned limitation of Android. To leave a group, open it, tap on the group’s 11/18/2015; 23 minutes to read; In this article. You can find this in your phone's settings: Security > Encrypt phone or Security > Encrypt device. Please proceed as follows: There is a special ID named ECHOECHO that simply Relay service for Threema Web push notifications. If you decide to enable the synchronization, email addresses and phone numbers from your address book will only be transmitted to the server in one-way encrypted (“hashed”) form and are additionally protected using TLS encryption. Threema Web (web.threema.ch) is Threema’s web client. In the setup wizard, tap on “Restore from Backup”, tap The most recent audits are listed below. stores it as long as absolutely necessary. However, problems with Family Sharing can usually be solved by offloading and reinstalling the affected app. These channels determine which signals (notification sound, light, vibration, etc.) Search. The chat will be removed from the chat overview, but not deleted. While the public key is sent to Threema's servers to be distributed to your chat partners, the private key remains on your device where it is securely stored. This is to say that it’s possible to conduct one-way video calls. The maximum file size is 50 MB (it might, however, not be possible to send large files on As a temporary solution, you can turn the synchronization off and on again in the Threema settings. The validation log will contain entries like the following (note that this is dummy data and will not decrypt): Choose the message that you want to decrypt. Messages and files are stored on the servers until they are successfully delivered or until All data and select “Delete group”. Threema uses the open-source library NaCl In case the ID also set up on another device, it will not be deleted there. leave a group on iOS, swipe the group from right to left (in the chat list or in the group list), and tap We highly recommend to always install the most recent operating system updates and to only use software from trusted sources. If you forgot the password for an underage account, enter the underage EA Account ID, not the parent or guardian email.