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Adds links to Recommended messaging apps
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[<img src="https://i.ibb.co/XbyGTrP/1-authentication-2-36x36.png" width="28" height="28" /> Authentication](#authentication)<br>
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[<img src="https://i.ibb.co/XbyGTrP/1-authentication-2-36x36.png" width="28" height="28" /> Authentication](#authentication)<br>
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[<img src="https://i.ibb.co/8KMrdbX/2-internet-36x36.png" width="28" height="28" /> Browsing the Web](#web-browsing)<br>
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[<img src="https://i.ibb.co/8KMrdbX/2-internet-36x36.png" width="28" height="28" /> Browsing the Web](#web-browsing)<br>
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[<img src="https://i.ibb.co/7NrXW3L/5-email-36x36.png" width="28" height="28" /> Email](#emails)<br>
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[<img src="https://i.ibb.co/7NrXW3L/5-email-36x36.png" width="28" height="28" /> Email](#emails)<br>
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[<img src="https://i.ibb.co/wYzjXv3/13-messaging-36x36.png" width="28" height="28" /> Secure Messaging](#secure-messaging)<br>
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[<img src="https://i.ibb.co/DrWJBT9/13-messaging-36x36.png" width="28" height="28" /> Secure Messaging](#secure-messaging)<br>
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[<img src="https://i.ibb.co/GFYyXMd/6-social-media-36x36.png" width="28" height="28" /> Social Media](#social-media)<br>
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[<img src="https://i.ibb.co/GFYyXMd/6-social-media-36x36.png" width="28" height="28" /> Social Media](#social-media)<br>
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[<img src="https://i.ibb.co/0VTZQpH/3-networking-36x36.png" width="28" height="28" /> Networks](#networking)<br>
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[<img src="https://i.ibb.co/0VTZQpH/3-networking-36x36.png" width="28" height="28" /> Networks](#networking)<br>
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[<img src="https://i.ibb.co/F3WwqsV/7-phones-36x36.png" width="28" height="28" /> Mobile Phones](#mobile-devices)<br>
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[<img src="https://i.ibb.co/F3WwqsV/7-phones-36x36.png" width="28" height="28" /> Mobile Phones](#mobile-devices)<br>
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@ -165,11 +165,11 @@ The big companies providing "free" email service, don't have a good reputation f
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**Security** | **Priority** | **Details and Hints**
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**Security** | **Priority** | **Details and Hints**
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--- | --- | ---
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--- | --- | ---
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**Only Use Fully End-to-End Encrypted Messengers** | Recommended | [End-to-end encryption](https://en.wikipedia.org/wiki/End-to-end_encryption) is a system of communication where messages are encrypted on your device and not decrypted until they reach the intend recipient. This ensures that any actor who intercepts traffic cannot read the message contents, nor can the anybody with access to the central servers where data is stored. Note that if an app is not completely open source, the extent to which the encryption is implemented cannot be verified, and it should not be trusted.
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**Only Use Fully End-to-End Encrypted Messengers** | Recommended | [End-to-end encryption](https://en.wikipedia.org/wiki/End-to-end_encryption) is a system of communication where messages are encrypted on your device and not decrypted until they reach the intend recipient. This ensures that any actor who intercepts traffic cannot read the message contents, nor can the anybody with access to the central servers where data is stored. Note that if an app is not completely open source, the extent to which the encryption is implemented cannot be verified, and it should not be trusted.
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**Use only Open Source Messaging Platforms** | Recommended | If code is open source then it can be independently examined and audited by anyone qualified to do so to ensure that there are no backdoors, vulnerabilities, or other security issues. As well as this bugs are raised transparently and are usually fixed quickly, and version histories can show who added what, and when. When downloading a pre-built package, you can verify that it has not been tampered with by [doing a hack check](https://proprivacy.com/guides/how-why-and-when-you-should-hash-check) and comparing the digital signatures. It's important to note that, no piece of software that it totally bug free, and hence never truly secure or private- being open source, is in no way a guarantee that something is safe
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**Use only Open Source Messaging Platforms** | Recommended | If code is open source then it can be independently examined and audited by anyone qualified to do so, to ensure that there are no backdoors, vulnerabilities, or other security issues. Therefore propriety applications should not be trusted for communicating sensitive information. In open source echosystems, bugs are raised transparently and are usually fixed quickly, and version histories can show who added what, and when. When downloading a pre-built package, you can verify that it has not been tampered with by [doing a hack check](https://proprivacy.com/guides/how-why-and-when-you-should-hash-check) and comparing the digital signatures. It's important to note that, no piece of software that it totally bug free, and hence never truly secure or private- being open source, is in no way a guarantee that something is safe
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**Use a "Trustworthy" Messaging Platform** | Recommended | When selecting an encrypted messaging app, ensure it's fully open source. It should be stable and actively maintained. Ideally it should be backed by reputable developers or at least be fully clear where funding originates from and/ or what their revenue model is. It should have undergone an independent code audit, with results publicly published
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**Use a "Trustworthy" Messaging Platform** | Recommended | When selecting an encrypted messaging app, ensure it's fully open source. It should be stable and actively maintained. Ideally it should be backed by reputable developers or at least be fully clear where funding originates from and/ or what their revenue model is. It should have undergone an independent code audit, with results publicly published
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**Check Security Settings** | Recommended | Enable security settings, including contact verification, security notifications and encryption. Disable optional non-security features such as read receipt, last online and typing notification. If the app supports cloud sync either for backup or for access through a desktop or web app companion, this increases the attack surface and so should be disabled
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**Check Security Settings** | Recommended | Enable security settings, including contact verification, security notifications and encryption. Disable optional non-security features such as read receipt, last online and typing notification. If the app supports cloud sync either for backup or for access through a desktop or web app companion, this increases the attack surface and so should be disabled
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**Disable Cloud Services** | Recommended | Some mobile messaging apps offer a web or desktop companion. This not only increases attack surface, but it has been linked to several [critical security issues](https://www.perimeterx.com/tech-blog/2020/whatsapp-fs-read-vuln-disclosure/), and should therefore be avoided, if possible. Some messaging apps also offer a cloud backup feature. Again there a serious security issues with many of these implementations, for example WhatsApp [backups are not encrypted](https://www.ghacks.net/2018/09/04/whatsapp-backups-android/), and so with this feature available, you chat history may be breached. Again, this should be [disabled](https://www.techuntold.com/stop-whatsapp-backup-iphone-android/).
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**Ensure your Recipients Environment is Secure** | Recommended | Your conversation can only be as secure as the weakest link. Often the easiest way to infiltrate a communications channel, is to target the individual or node with the least protection. They may not even be aware that their environment has been compromised, leading to sensitive information being captured by an adversary. The best solution to this is to educate and inform the participants in your conversation, about good security practices. Focus on secure authentication, device encryption, network security and malware prevention
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**Ensure your Recipients Environment is Secure** | Recommended | Your conversation can only be as secure as the weakest link. Often the easiest way to infiltrate a communications channel, is to target the individual or node with the least protection. They may not even be aware that their environment has been compromised, leading to sensitive information being captured by an adversary. The best solution to this is to educate and inform the participants in your conversation, about good security practices. Focus on secure authentication, device encryption, network security and malware prevention
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**Disable Cloud Services** | Recommended | Some mobile messaging apps offer a web or desktop companion. This not only increases attack surface, but it has been linked to several [critical security issues](https://www.perimeterx.com/tech-blog/2020/whatsapp-fs-read-vuln-disclosure/), and should therefore be avoided, if possible. Some messaging apps also offer a cloud backup feature. Again there a serious security issues with many of these implementations, for example WhatsApp [backups are not encrypted](https://www.ghacks.net/2018/09/04/whatsapp-backups-android/), and so with this feature available, you chat history may be breached. Again, this should be [disabled](https://www.techuntold.com/stop-whatsapp-backup-iphone-android/).
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**Secure Group Chats** | Recommended | That the risk of compromise will rise exponentially, the more participants are in a group, as the attack surface increases. There is also a higher chance that an adversary lurking among the members can go unnoticed. Periodically check that all participants are legitimate, and ensure only trusted members have admin privileges. It may sometimes be worth only sharing sensitive information within smaller groups. Note that with some messengers, not all group chats are encrypted (especially if one recipient is on an [older](https://graziadaily.co.uk/life/real-life/whatsapp-group-chats-actually-encrypted-theres-way-find/) version)
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**Secure Group Chats** | Recommended | That the risk of compromise will rise exponentially, the more participants are in a group, as the attack surface increases. There is also a higher chance that an adversary lurking among the members can go unnoticed. Periodically check that all participants are legitimate, and ensure only trusted members have admin privileges. It may sometimes be worth only sharing sensitive information within smaller groups. Note that with some messengers, not all group chats are encrypted (especially if one recipient is on an [older](https://graziadaily.co.uk/life/real-life/whatsapp-group-chats-actually-encrypted-theres-way-find/) version)
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**Create a Safe Environment for Communication** | Recommended | There are several stages where your digital communications could be monitored or intercepted. This includes: Your or your participants device, your ISP, national gateway or government logging, the messaging provider, the servers. You can help protect from these risks by: paying attention to your surroundings, keeping your devices up-to-date, avoiding malware, watching out for phishing attacks, relying on trustworthy services, creating strong passwords and second-factor authentication, using encryption and helping those with whom you communicate do the same. If you are concerned about your communications being intercepted, consider using a reputable VPN provider, or routing traffic through Tor
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**Create a Safe Environment for Communication** | Recommended | There are several stages where your digital communications could be monitored or intercepted. This includes: Your or your participants device, your ISP, national gateway or government logging, the messaging provider, the servers. You can help protect from these risks by: paying attention to your surroundings, keeping your devices up-to-date, avoiding malware, watching out for phishing attacks, relying on trustworthy services, creating strong passwords and second-factor authentication, using encryption and helping those with whom you communicate do the same. If you are concerned about your communications being intercepted, consider using a reputable VPN provider, or routing traffic through Tor
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**Agree on a Communication Plan** | Optional | In certain situations (such as attending a protest, communicating with a source or traveling to a risky location), it may be worth making a communication plan. This should include primary and backup methods of securely getting in hold with each other, (in order to avoid falling back on insecure technologies). You may wish to include procedures to implement in potential situations, e.g. to signal for help or assistance
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**Agree on a Communication Plan** | Optional | In certain situations (such as attending a protest, communicating with a source or traveling to a risky location), it may be worth making a communication plan. This should include primary and backup methods of securely getting in hold with each other, (in order to avoid falling back on insecure technologies). You may wish to include procedures to implement in potential situations, e.g. to signal for help or assistance
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**Ensure Forward Secrecy is Supported** | Advanced | Opt for a platform that implements [forward secrecy](https://en.wikipedia.org/wiki/Forward_secrecy). This is where your app generates a new encryption key for every message. It means that if your adversary has obtained the private encryption key from one party, they will not be able to use it to decrypt any previously captured messages
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**Ensure Forward Secrecy is Supported** | Advanced | Opt for a platform that implements [forward secrecy](https://en.wikipedia.org/wiki/Forward_secrecy). This is where your app generates a new encryption key for every message. It means that if your adversary has obtained the private encryption key from one party, they will not be able to use it to decrypt any previously captured messages
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**Consider a Decentralizes Platform** | Advanced | If all data flows through a central provider, you have to trust them with your data and meta-data. You cannot verify that the system running is authentic without back doors, and they may be subject to local laws, court orders or censorship, and if that provider ceases to operate, the entire network will be unavailable for that duration. Whereas with a decentralized system, there are no central servers to compromise, and no single point of failure. It cannot be raided, shut down, or forced to turn over data. Some decentralized platforms also route traffic through the Tor network, which provides an additional layer of anonymity and security.
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**Consider a Decentralizes Platform** | Advanced | If all data flows through a central provider, you have to trust them with your data and meta-data. You cannot verify that the system running is authentic without back doors, and they may be subject to local laws, court orders or censorship, and if that provider ceases to operate, the entire network will be unavailable for that duration. Whereas with a decentralized system, there are no central servers to compromise, and no single point of failure. It cannot be raided, shut down, or forced to turn over data. Some decentralized platforms also route traffic through the Tor network, which provides an additional layer of anonymity and security.
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**Recommended Software**
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- [Secure Messaging Apps](/5_Privacy_Respecting_Software.md#encrypted-messaging)
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- [P2P Messaging Platforms](/5_Privacy_Respecting_Software.md#p2p-messaging)
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## Social Media
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## Social Media
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