Should there be no updates visible in Google Play, please follow these instructions. 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. Wie kann ich jetzt jemanden einladen, ohne die Telefonnummer oder E-Mail Adresse zu senden? You will find this option in “Threema > Settings > Privacy > Disable the “Block Unknown” option in Threema > Settings > Privacy to receive all group-chat iOS: Navigate to the “My Profile” tab, and tap on the QR code. When this has completed, start Threema again. or is absent for an extended period of time. Since they are end-to-end encrypted, they are tap-proof. restore it. 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. Usually all that is required to compile threema_unbox and threema_getprivkey is to type make inside the directory with the files. Threema, on the other hand, generates as little data as technically possible and only This might affect a process which is responsible for keeping the passphrase present in memory. contact has disabled profile pictures, your profile picture will not be displayed All messages and media are transmitted end-to-end encrypted in Threema. Start threema_unbox and provide the following values (all in hex): If decryption is successful, the number of padding bytes included in the message will be printed, followed by the message text (each message contains a random amount of PKCS#7 padding). Finally, tap the trash-bin icon to delete the selected items. note: When leaving a group, the group messages will not be deleted. Scan the QR code using a generic QR scanner app, e.g. Ensure that badges, alerts and sounds are turned on. A data backup allows you to move your chats, groups Threema Work can be easily distributed, either with or without an MDM system. In Threema, navigate to “Settings > Media & Storage,” and activate “Auto-save to gallery.” Automatically saved media files are located in the same directories as manually saved media files, see above. They are already installed on the vast majority of devices. If you receive unwanted messages from another Threema user, you can block them: A blocked contact doesn't see if he or she is blocked. incoming notifications trigger. Threema allows you to Instead of a phone number, the Threema ID serves as unique identifier. If you use an Android device and the connection is interrupted on a regular basis, please connect your computer and your mobile device to the same local network, if possible. Then, navigate to “Block contact” in the side menu. Personal Threema is available in a light and a dark theme. Mute the Threema Channel if you prefer not to receive push notifications. Serious privacy protection must include both If you After choosing your password, Threema creates a backup and stores it in the folder auth/invalid … delete the chat history, tap and hold the chat, and then tap the trash-bin icon. The preferred image quality can be adjusted in Threema > Settings > Video Calls > Preferred Image Quality. 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 delete the ECHOECHO contact at any time (and, if need be, add it again manually). Pinned chats always stay on top of the chat list and are marked with a yellow bar. After resetting your phone or switching to a new phone, In case the ID also set up on another device, it will not be deleted there. file and, optionally, all media files). Threema Safe can be used with any WebDAV server (such as NextCloud), provided that the server can be reached via the Internet and is equipped with a valid TLS certificate trusted by the operating system (not self-signed). Learn how to store your Threema Safe backup on your own server in this guide. To retrieve your ID’s inventory data that’s stored on the Threema server, simply send “info” to the Threema ID *MY3DATA, and you’ll immediately receive a reply in machine-readable form (JSON). 3.3. timestamps -- is the token within its validity window? New groups can be created using the “New group” item in the main menu on Android and using the “Compose message” button on iOS. Threema offers the option to request the verification code via a phone call: Please understand that we cannot call certain countries/numbers. Obtain from validation log or directly from the QR code. Is Threema not yet available in your language? is used in conjunction with a hash function and a random nonce to derive a unique 256 bit symmetric key for each first. Learn more… This way, confidential chats are protected from prying eyes. Then, choose the app that hosts the file you would like to share (e.g. 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. In Threema’s main screen, tap on “My Profile”, In Threema’s main view, select the “My Profile”/“My ID” tab, Scroll to the bottom, and tap on “Delete ID”. That way, man-in-the-middle If no package is available for your operating system, you can also compile NaCl from source as described on the NaCl Installation page. Please proceed as follows: There is a special ID named ECHOECHO that simply Quick Customer Survey. Look at this manual, if you have problems to install or update Threema from the Threema Store: If you hear your own voice as an echo during voice calls, the echo cancellation doesn't work correctly. settings for you. Aside from Internet connectivity charges (which may vary If there is already a Threema Gateway can be used for various purposes, the possibilities are virtually endless. Busy: The recipient either rejected your call or is already talking on the phone to someone else. Wie ihr eine.. When you try to join your server and see one of the upper error messages, the server could not verify your account. This behavior is also the reason for the repudiability property of the NaCl crypto_box model: using his own private key and the sender's public key, any recipient can forge a message that will look just like it was actually generated by the purported sender, so the recipient cannot convince a third party that the message was really generated by the sender and not forged by the recipient. browser. Please follow the troubleshooting instructions for Android or iOS. In Threema, text can be formatted bold, italic, and crossed out. Rollout and app confguration via MDM software: Threema Work is suited for distribution via MDM system. Threema allows to create a poll right inside a chat. settings for the preview to be shown. that can be drawn of a person is much more detailed than one that could ever be drawn from message contents alone. Comprehensive privacy protection requires solid message encryption, but Threema has a strength of 255 bits. If you’re reading this page on the device where Threema is installed, simply open the following link, and then tap “Send”: https://threema.id/%2AMY3DATA?text=info. Provided that changes were made to the data to be backed up and an Internet connection is established, Threema Safe creates a backup approximately every 24 hours. Android: In a chat, tap on the paperclip icon, and select The Threema app is started in the background for each incoming push notification, decrypts the push payload, downloads the corresponding message directly from the Threema servers, decrypts it and shows a local message preview (if enabled) and the contact name of the sender. For this reason, the app has to be purchased again for the new operating system when switching from one platform to another. If you have purchased European General Data Protection Regulation, Ordinance to the Federal Act on Data Protection, individual 11/18/2015; 23 minutes to read; In this article. Important data, such as your Threema ID and your contacts, can be transferred using Threema Safe. Once a Threema call is established, both parties can independently enable and disable video transmission by tapping the camera icon. Threema is the world’s best-selling secure messenger. There is no age restriction, and it’s generally safe to use Threema at any age. Threema Safe is platform independent. (If the contact list doesn’t contain the ID, the ID will be added to the contact list.). Your raw private key can be extracted from a Threema ID backup (a string in the format "ABCD-EFGH-IJ12-..."). This notification has no other purpose and is only required because of the aforementioned limitation of Android. 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. persistent notification. echoes back all messages that you send to it. reasonable workaround and recommend all users to update to a newer operating system version if possible. Steps to Reproduce (for bugs) Add a contact through Threema Web Enter an invalid ID (e.g. Pickup: A connection has been established; you can talk to the callee. 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. Scan a contact’s QR code. More Less. the Android version in our store, you can download and then reinstall it with the same license key. You can try again (perhaps using a different email address) by going back to the “Linked Email” dialog, clearing the address and saving. The backup’s file name is also derived from the user’s password. Learn more…. As group administrator, you can delete a group at once, without having to remove all members Review certificate…, There is a price plan available for public educational institutions: Threema Education. Then, tap the bell (or “Stop” or “@”) symbol in the bar that appears below the title bar to open the notification settings. It is therefore also suited for childern under the age of 16. only vibration can be enabled as notification signal, all other signals (heads-up, sound, notification light, and to confirm by tapping “Done”. Enable all (or the desired) notification settings for Threema: Open the first entry in the Chats section, Enable all settings (Floating Notifications, Lock Screen Notifications, Sound, etc. you won’t be able to restore the exported ID. Stale contacts are IDs that haven't been used for more than three months. this verification link is invalid or has expired. It must be a valid non-empty string. When opening the link on a computer (or a mobile device on which Threema is not installed), a custom website appears, where you can add the ID to Threema by scanning a QR code (or download the app from the appropriate store). Sciences, see, mobileNoHash: hash of linked phone number, featureMask: bit mask of features supported by the Threema version in use, pushtoken/voippushtoken: Push token of the push services in use (GCM/FCM, APNS, WNS), pushsound/pushgroupsound: name of the chosen sound file for push messages (not used on all platforms), revocationKey: information about revocation password, if set, After succesful payment, you will receive an email containing the license key(s), Distribute the license to your presentee(s), e.g., via email, (New versions of the app can be automatically updated using the “About Threema” screen. To prevent this from happening, please perform the following steps: Please note: When using a Xiaomi device, you need to perform these steps again after a restart. Threema Web is currently available in English and German. Send always your Backup to yourself via email. It may seem strange that outgoing messages can be decrypted by entering the sender's private key and the recipient's public key, i.e. browser, direct connection between desktop and mobile device, Share photos, videos, animated GIFs, and locations. Some ISPs use greylisting, which causes emails from new senders to be delayed by up to an hour. Restoration will not be successful in that case. In these rare cases, a generic notification (“Message” or “Group Message”) will be displayed. 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). The software is based on the privacy by design principles as it does not require a phone number or any other personally identifiable information.This helps anonymize the users to a degree. Android: In the Contacts tab, tap the “New contact” button, and select “Scan ID”. Alternatively, you can add the contact’s Threema-ID to the blacklist in “Threema > Settings > Privacy > Blacklist.”. Please get in Some knowledge on using a Unix-type operating system is required, and knowledge on how to operate a C compiler may be necessary. Some other apps don’t recognize the encryption and return an error message stating that the provided password is incorrect (even though you have entered the password correctly). Threema messages can be received without mobile network coverage as long as there is a working Internet connection. The Google Play Store (Android) and the App Store (iOS) allow to reinstall any purchased app at no additional cost. The chat will be removed from the chat overview, but not deleted. Threema/Backups on your phone. You can add your custom Share Link to your email signature or use it as (anonymous) contact information on social networks. Ringing: The phone is ringing at the recipient’s end. If If some of the information is missing, your data is not accessible anymore. Export”. Support the translation here: Yes. 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. Hi EA, Today I was prompted by Origin to log-in to my account via the PC App. Learn how to move your ID to Applies to: Consumer notebooks on OneDrive | Enterprise notebooks on Office 365. Should the problem We highly recommend to always install the most recent operating system updates and to only use software from trusted sources. In the chat, the quoted message is indented and prepended to your new message so that it’s evident what you are referring to. This provides the best protection against unauthorized access. “~Bob”). In the chat overview, swipe from right to left on a chat to archive it. Also, it’s not possible to use a Threema ID in both the Threema and the Threema Work app at the same time. However, groups can be cloned. No, that is impossible, as we don't have the secret keys of our users (your secret key never leaves your device). Opens the chat with the specified ID. This setting controls how prominently notifications are displayed. You can manually trigger the backup process: If the Threema app on your device doesn’t connect to the Threema server for 180 days, your backup will be deleted automatically from the server. Alternatively, you can transmit your profile In the restore menu, you can either enter the long string manually, or you can scan the QR code. Obtain from an ID backup using. For privacy reasons, groups are managed in a Contribute to threema-ch/push-relay development by creating an account on GitHub. As mentioned above, it is, however, not possible to only allow iTunes backups. Video transmission is an option of Threema calls that can be enabled at any time during an ongoing call. It’s also possible to use Threema without Google Play services. The connection between the app and the servers is secure against MITM attacks because the server authenticates itself to the app based on a public key that is hard-coded into the app and whose corresponding secret key is only known by the legitimate servers. However, the recipient is still protected against forgeries by third parties, since the recipient himself will know whether or not he has used his own private key for such a forgery. Staying up to date: If Threema was downloaded from Google Play and automatic updates are enabled (in Google Play Store app > menu > Settings > Auto-update Apps), Threema updates will be installed automatically. Implementation of the PBKDF2 Password-Based Key Derivation Function with SHA256 that is used to derive the backup encryption key from the user-defined password. Go to iPhone Settings > Notifications > Threema. have lost your license key, you can retrieve it. Starting with version 4.0, there’s a camera built into Threema for Android. manipulations/forgeries. Problems with sending messages can have different causes. If the contact list does not contain the specified ID, the ID will be added to the contact list, and the contact details will be opened. The tilde character (~) in front of a contact’s name indicates that the name is a nickname (e.g. Validate the ID token signature or HMAC; 3. In Threema, navigate to “Settings > About Threema > Troubleshooting > Fix device configuration problems”, Select “Disable power restrictions” (if available), and follow the on-screen instructions, Select “Enable background data” (if available), and follow the on-screen instructions, Create a data backup in Threema including media files (find out. Threema ID is optional. All messages directed to you will be individually encrypted with your public key on the sender's device. This will keep these files accessible to you even if you delete the app. Linking a phone number and/or email address to one’s The call connection is established using Threema messages in the background; therefore, Threema calls are just as trustworthy as chats, and the same verification levels apply. If a group If you’re reading this page on a device where Threema is installed, simply follow this link (and then tap “Send”) to add the Threema Channel: https://threema.id/%2ATHREEMA?text=info. Please note: After you have deleted a group, other group members can’t use it anymore. To unsubscribe from a feed, send “stop [feed name],” e.g., “stop android.”. In contrast to other messengers, your identity in Threema is not dependent on a phone number. without knowing the recipient's private key. After you synchronize your address book again, only active contacts (Threema IDs) will be displayed. Only those contacts can be selected from the list that have installed a group chat capable version of Threema. Using Threema ought to generate as little data on servers as possible – this is part of the concept. Threema Safe backups do not include chats, media files, and Android: Navigate to the “My Profile” tab, and tap on the QR code icon. If Threema is not listed in My Apps, you were using another Google Account when you purchased Threema, or you bought it in, In Threema’s main screen, open the menu (by tapping the three horizontal dots in the upper right corner), and select “New distribution list”, Select the recipients who shall receive messages sent to this distribution list, and conclude your selection by tapping the check mark in the top right corner, Specify a name for the distribution list, and confirm by tapping “OK”, Copy your ringtone sound files to the folder “ringtones” and notification sound files to the folder “notifications”. You can switch between the two themes here: To quote a text message, tap and hold it until the context menu appears. To free up space, you can choose between the following Android: Navigate to the “My Profile” tab, and tap on the QR code icon, iOS: Navigate to the “My Profile” tab, and tap on the QR code, Android: In the Contacts tab, tap the “New contact” button, and select “Scan ID”, iOS: Threema > My ID > camera icon in the top right corner. The verification levels don't change anything in the encryption strength (it is always the same high-grade ECC based encryption), but they are a measure of thetrust that the public keys saved for your contacts really belong to them. We make a best effort to deliver text messages to all countries. If there are unresolved issues in a chat, you can use the “pin” feature to create a visual reminder. Maybe your ID has been unintentionally blocked by the recipient. Alternatively, you can delete every contact that is listed multiple times. In contrast to other messengers, your identity in Threema does not depend on a phone number. choose between the following options: Please note: Messages are not deleted automatically but only when tapping the respective “Delete” button. (If you don’t remember your backup’s password, it cannot be recovered.). and select “Delete group”. On Android (all app versions) and iOS (Threema version 2.9.0 and up), incoming messages can be decrypted in the Create an ID export on your previous device: Tap on “My ID”, then select “ID export”, and activate the option iOS: Enter a wrong code To learn more, please refer to the, Due to the high volume of support requests, it may take, Silently agree or disagree to received messages, Hide confidential chats and password-protect them with a PIN or your the menu and use the drop-down menu to filter the listed files (all, images, videos, voice messages, other files). 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