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@ -37,24 +37,6 @@ GrapheneOS supports [Sandboxed Google Play](https://grapheneos.org/usage#sandbox
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Google Pixel phones are the only devices that currently meet GrapheneOS's [hardware security requirements](https://grapheneos.org/faq#device-support).
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### CalyxOS
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!!! recommendation
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{ align=right }
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**CalyxOS** is a system with some privacy features on top of AOSP, including [Datura](https://calyxos.org/docs/tech/datura-details) firewall, [Signal](https://signal.org) integration in the dialer app, and a built in panic button. CalyxOS also comes with firmware updates and signed builds, so verified boot is fully supported.
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[:octicons-home-16: Homepage](https://calyxos.org/){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://calyxinstitute.org/legal/privacy-policy){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://calyxos.org/docs/){ .card-link title=Documentation}
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[:octicons-code-16:](https://github.com/CalyxOS){ .card-link title="Source Code" }
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[:octicons-heart-16:](https://members.calyxinstitute.org/donate){ .card-link title=Contribute }
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CalyxOS optionally includes [microG](https://microg.org/), a partially open source reimplementation of Play Services which provides broader app compatibility. It also bundles in alternate location services: [Mozilla](https://location.services.mozilla.com/) and [DejaVu](https://github.com/n76/DejaVu).
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CalyxOS [supports](https://calyxos.org/docs/guide/device-support/) Google Pixel phones, the OnePlus 8T/9 and the Fairphone 4. We only recommend CalyxOS as a harm reduction measure for the OnePlus 8T, OnePlus 9, and especially the Fairphone 4.
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### DivestOS
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!!! recommendation
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@ -79,10 +61,30 @@ DivestOS implements some system hardening patches originally developed for Graph
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!!! warning
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DivestOS firmware update [status](https://gitlab.com/divested-mobile/firmware-empty/-/blob/master/STATUS) and quality control varies across the devices it supports. We still recommend GrapheneOS or CalyxOS depending on your device's compatibility. For other devices, DivestOS is a good alternative.
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DivestOS firmware update [status](https://gitlab.com/divested-mobile/firmware-empty/-/blob/master/STATUS) and quality control varies across the devices it supports. We still recommend GrapheneOS depending on your device's compatibility. For other devices, DivestOS is a good alternative.
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Not all of the supported devices have verified boot, and some perform it better than others.
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### CalyxOS
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!!! recommendation
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{ align=right }
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**CalyxOS** is a system with some privacy features on top of AOSP, including [Datura](https://calyxos.org/docs/tech/datura-details) firewall, [Signal](https://signal.org) integration in the dialer app, and a built in panic button. CalyxOS also comes with firmware updates and signed builds, so verified boot is fully supported.
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We only recommend CalyxOS as a harm reduction measure for the OnePlus 8T, OnePlus 9, and especially the Fairphone 4 if you need microG.
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[:octicons-home-16: Homepage](https://calyxos.org/){ .md-button .md-button--primary }
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[:octicons-eye-16:](https://calyxinstitute.org/legal/privacy-policy){ .card-link title="Privacy Policy" }
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[:octicons-info-16:](https://calyxos.org/docs/){ .card-link title=Documentation}
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[:octicons-code-16:](https://github.com/CalyxOS){ .card-link title="Source Code" }
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[:octicons-heart-16:](https://members.calyxinstitute.org/donate){ .card-link title=Contribute }
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CalyxOS optionally includes [microG](https://microg.org/), a partially open source reimplementation of Play Services which provides broader app compatibility. It also bundles in alternate location services: [Mozilla](https://location.services.mozilla.com/) and [DejaVu](https://github.com/n76/DejaVu).
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CalyxOS [supports](https://calyxos.org/docs/guide/device-support/) Google Pixel phones, the OnePlus 8T/9/9 Pro and the Fairphone 4.
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## Android Devices
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When purchasing a device, we recommend getting one as new as possible. The software and firmware of mobile devices are only supported for a limited time, so buying new extends that lifespan as much as possible.
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@ -66,7 +66,7 @@ Tor allows us to connect to a server without any single party knowing the entire
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Though Tor does provide strong privacy guarantees, one must be aware that Tor is not perfect:
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- Well-funded adversaries with the capability to passively watch most network traffic over the globe have a chance of deanonymizing Tor users by means of advanced traffic analysis. Nor does Tor does not protect you from exposing yourself by mistake, such as if you share to much information about your real identity.
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- Tor exit nodes can also monitor traffic that passes through them. This means traffic which is not encrypted, such as plain HTTP traffic, can be recorded and monitored. If such traffic contains personally identifiable information, then it can denonymize you to that exit node. Thus, we recommend using HTTPS over Tor where possible.
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- Tor exit nodes can also monitor traffic that passes through them. This means traffic which is not encrypted, such as plain HTTP traffic, can be recorded and monitored. If such traffic contains personally identifiable information, then it can deanonymize you to that exit node. Thus, we recommend using HTTPS over Tor where possible.
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If you wish to use Tor for browsing the web, we only recommend the **official** Tor Browser—it is designed to prevent fingerprinting.
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@ -2,7 +2,7 @@
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title: "Calendar and Contact Sync"
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icon: material/calendar
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---
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Calendaring and contacts are some of the most sensitive data possess. Use products that implement E2EE at rest to prevent a provider from reading your data.
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Calendars and contacts contain some of your most sensitive data; use products that implement E2EE at rest to prevent a provider from reading them.
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## Tutanota
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@ -15,15 +15,17 @@ icon: material/dns
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| ------------ | -------------- | --------- | ------- | --- | --------- |
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| [**AdGuard**](https://adguard.com/en/adguard-dns/overview.html) | [:octicons-link-external-24:](https://adguard.com/en/privacy/dns.html) | Cleartext <br> DoH <br> DoT <br> DNSCrypt | Some[^1] | No | Based on server choice. Filter list being used can be found here. [:octicons-link-external-24:](https://github.com/AdguardTeam/AdGuardDNS)
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| [**Cloudflare**](https://developers.cloudflare.com/1.1.1.1/setting-up-1.1.1.1/) | [:octicons-link-external-24:](https://developers.cloudflare.com/1.1.1.1/privacy/public-dns-resolver/) | Cleartext <br> DoH <br> DoT | Some[^2] | No | Based on server choice.|
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| [**Mullvad**](https://mullvad.net/en/help/dns-over-https-and-dns-over-tls) | [:octicons-link-external-24:](https://mullvad.net/en/help/no-logging-data-policy/) | DoH <br> DoT | No[^3] | No | Based on server choice. Filter list being used can be found here. [:octicons-link-external-24:](https://github.com/mullvad/dns-adblock)
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| [**NextDNS**](https://www.nextdns.io) | [:octicons-link-external-24:](https://www.nextdns.io/privacy) | Cleartext <br> DoH <br> DoT <br> DNSCrypt | Optional[^4] | Optional | Based on server choice. |
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| [**Quad9**](https://quad9.net) | [:octicons-link-external-24:](https://quad9.net/privacy/policy/) | Cleartext <br> DoH <br> DoT <br> DNSCrypt | Some[^5] | Optional | Based on server choice, Malware blocking by default. |
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| [**Control D**](https://controld.com/free-dns) | [:octicons-link-external-24:](https://controld.com/privacy) | Cleartext <br> DoH <br> DoT <br> DNSCrypt | Optional[^3] | No | Based on server choice. |
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| [**Mullvad**](https://mullvad.net/en/help/dns-over-https-and-dns-over-tls) | [:octicons-link-external-24:](https://mullvad.net/en/help/no-logging-data-policy/) | DoH <br> DoT | No[^4] | No | Based on server choice. Filter list being used can be found here. [:octicons-link-external-24:](https://github.com/mullvad/dns-adblock)
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| [**NextDNS**](https://www.nextdns.io) | [:octicons-link-external-24:](https://www.nextdns.io/privacy) | Cleartext <br> DoH <br> DoT <br> DNSCrypt | Optional[^5] | Optional | Based on server choice. |
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| [**Quad9**](https://quad9.net) | [:octicons-link-external-24:](https://quad9.net/privacy/policy/) | Cleartext <br> DoH <br> DoT <br> DNSCrypt | Some[^6] | Optional | Based on server choice, Malware blocking by default. |
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[^1]: AdGuard stores aggregated performance metrics of their DNS servers, namely the number of complete requests to a particular server, the number of blocked requests, and the speed of processing requests. They also keep and store the database of domains requested in within last 24 hours. "We need this information to identify and block new trackers and threats." "We also log how many times this or that tracker has been blocked. We need this information to remove outdated rules from our filters." [https://adguard.com/en/privacy/dns.html](https://adguard.com/en/privacy/dns.html)
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[^2]: Cloudflare collects and stores only the limited DNS query data that is sent to the 1.1.1.1 resolver. The 1.1.1.1 resolver service does not log personal data, and the bulk of the limited non-personally identifiable query data is stored only for 25 hours. [https://developers.cloudflare.com/1.1.1.1/privacy/public-dns-resolver/](https://developers.cloudflare.com/1.1.1.1/privacy/public-dns-resolver/)
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[^3]: Mullvad's DNS service is available to both subscribers and non-subscribers of Mullvad VPN. Their privacy policy explicitly claims they do not log DNS requests in any way. [https://mullvad.net/en/help/no-logging-data-policy/](https://mullvad.net/en/help/no-logging-data-policy/)
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[^4]: NextDNS can provide insights and logging features on an opt-in basis. You can choose retention times and log storage locations for any logs you choose to keep. If it's not specifically requested, no data is logged. [https://nextdns.io/privacy](https://nextdns.io/privacy)
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[^5]: Quad9 collects some data for the purposes of threat monitoring and response. That data may then be remixed and shared, such as for the purpose of security research. Quad9 does not collect or record IP addresses or other data they deem personally identifiable. [https://www.quad9.net/privacy/policy/](https://www.quad9.net/privacy/policy/)
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[^3]: Control D only logs for Premium resolvers with custom DNS profiles. Free resolvers do not log data. [https://controld.com/privacy](https://controld.com/privacy)
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[^4]: Mullvad's DNS service is available to both subscribers and non-subscribers of Mullvad VPN. Their privacy policy explicitly claims they do not log DNS requests in any way. [https://mullvad.net/en/help/no-logging-data-policy/](https://mullvad.net/en/help/no-logging-data-policy/)
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[^5]: NextDNS can provide insights and logging features on an opt-in basis. You can choose retention times and log storage locations for any logs you choose to keep. If it's not specifically requested, no data is logged. [https://nextdns.io/privacy](https://nextdns.io/privacy)
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[^6]: Quad9 collects some data for the purposes of threat monitoring and response. That data may then be remixed and shared, such as for the purpose of security research. Quad9 does not collect or record IP addresses or other data they deem personally identifiable. [https://www.quad9.net/privacy/policy/](https://www.quad9.net/privacy/policy/)
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The criteria for the servers listed above are:
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@ -83,6 +83,6 @@ When you are using a SearXNG instance, be sure to go read their privacy policy.
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Startpage is based in the :flag_nl: Netherlands. According to their [privacy policy](https://www.startpage.com/en/privacy-policy/), they log details such as: operating system, type of browser, and language. They do not log your IP address, search queries, or other personally identifying information.
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Startpage's majority shareholder is System1 who is an adtech company. We don't believe that to be an issue as they have an distinctly separate [privacy policy](https://system1.com/terms/privacy-policy). The Privacy Guides team reached out to Startpage [back in 2020](https://web.archive.org/web/20210118031008/https://blog.privacytools.io/relisting-startpage/) to clear up any concerns with System1's sizeable investment into the service. We were satisfied with the answers we received.
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Startpage's majority shareholder is System1 who is an adtech company. We don't believe that to be an issue as they have a distinctly separate [privacy policy](https://system1.com/terms/privacy-policy). The Privacy Guides team reached out to Startpage [back in 2020](https://web.archive.org/web/20210118031008/https://blog.privacytools.io/relisting-startpage/) to clear up any concerns with System1's sizeable investment into the service. We were satisfied with the answers we received.
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--8<-- "includes/abbreviations.en.md"
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@ -225,7 +225,7 @@ We [recommend](dns.md#recommended-providers) a number of encrypted DNS servers b
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- { .twemoji } [Tutanota](calendar-contacts.md#tutanota)
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- { .twemoji } [EteSync](calendar-contacts.md#etesync)
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- { .twemoji } [Proton](calendar-contacts.md#proton-calendar)
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- { .twemoji } [Proton Calendar](calendar-contacts.md#proton-calendar)
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</div>
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Reference in New Issue
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