DoT (DNS over TLS) is a protocol that encrypts DNS queries using TLS (Transport Layer Security). It allows name service queries to travel over a separate, encrypted connection, preventing outsiders from seeing what websites a user is trying to access. DoT uses port 853 and provides strong privacy protection, especially on mobile devices and routers.
Archiv: mobile Computer / Sensoren / mobile computers / sensors / „Smart Phones“ / Handys / „Wearables“
How to change DNS settings on every device
(August 12, 2022)
By default, your home network likely relies on a DNS server provided by your internet provider. However, these servers aren’t always the fastest and, in some cases, may even allow your ISP to maliciously track your online behavior. To that end, if internet speed and privacy matter a lot, you should perhaps consider changing your DNS server.
The best way to change your DNS server is at the router level, which will affect every single device connected to it.
How to Change Your DNS on Any Device
(20.01.2024)
A Domain Name System (DNS) matches human-friendly domain names to computer-friendly IP addresses.
When you type in a domain name like cyberghost.com, for example, your web browser sends the request to your ISP via your router. Your ISP refers the request to its default DNS server. The DNS server then supplies the relevant IP address so your browser can load the appropriate page.
A DNS also saves a local copy or cache of sites you’ve recently visited on your device for quick and easy reference.
It seems like a streamlined service; what could go wrong? Check the following reasons why you should change your DNS.
Gefährliche Apps · Im Netz der Datenhändler
(April 7, 2026)
Grundlage dieser Dokumentation ist eine der bislang größten Recherchen dieser Art: Ein Team aus Bayerischem Rundfunk, netzpolitik.org, Le Monde und weiteren Partnermedien hat rund zehn Milliarden Standortdaten ausgewertet. Eine Spurensuche, die um die halbe Welt führt: zu einer ägyptischen Exiljournalistin in Berlin, die bedroht wird. Nach Brüssel, wo hochrangige Mitarbeiter der EU-Kommission betroffen sind. Nach Washington, wo Politiker ein Sicherheitsrisiko für US-Agenten in Europa sehen. Oder an die ukrainische Front, wo Soldaten in den Datensätzen ihre eigenen Stellungen wiedererkennen.
Große ARD-Doku: Achtung, Datenhandel! Lebensgefahr!
(April 7, 2026)
Es geht um Milliarden Standortdaten von ahnungslosen Handy-Nutzer*innen, oftmals metergenau. Angeblich nur zu Werbezwecken erhoben, fließen die Daten über populäre Handy-Apps auf teils verschlungenen Wegen in die Hände von Databrokern. Potenziell betroffen sind alle Menschen, die ein Smartphone nutzen.
(…)
Zur Erinnerung: Das Recherche-Team hat die Daten kostenlos von einem Databroker im Netz erhalten. Prinzipiell zugänglich sind solche Daten für alle, die Datenhändler danach fragen. Für einen vierstelligen Betrag im Monat können Interessierte ein Abonnement abschließen.
Digital location data heads back to the Supreme Court
(April 24, 2026)
Background
The Supreme Court last weighed in on the digital Fourth Amendment in 2017. In Carpenter v. United States, the court addressed whether the police had to get a warrant before accessing a certain kind of digital location data, cell-site location information. Cell phones generate CSLI anytime they are on by scanning for the nearest cell tower with strong service. When a cell phone connects to a tower, that tower then records that connection in CSLI logs. A phone’s location can be tracked across time and space by reviewing those logs.
Writing for a 5-4 majority, Chief Justice John Roberts’ Carpenter opinion held that the police must get a warrant before reviewing seven or more days of CSLI for a person’s phone. (…)
Enter: geofence data
Among these unsettled questions is whether police need a warrant to access geofence data, another kind of digital location data. Geofence data generally refers to location information collected by cellphone apps. If you have encountered a prompt on your phone that asks you whether you’d like to allow an app to use your location, you’re likely generating the kind of data at issue in Chatrie. Chatrie specifically involved data generated by a Google service called Location History. In Google’s case, this location information was created by combining information from cell towers but also on GPS, Wi-Fi, and Bluetooth signals.
Hackers found a way to steal data from air gapped networks using powerlines
(8th May 2018)
Hot on the heels of exploits that use fan noise, infra red cameras, heat, LED lights and drones, magnetic fields and smartphones, and a multitude of other hacks to gain access to sensitive air gapped computer systems, the researchers from Israel’s Ben Gurion University have shown once again that air-gapped networks are not safe from a determined and patient attacker.
The researchers have already devised several devious techniques to extract data from isolated or air-gapped computers that store highly sensitive data and now their latest technique, dubbed PowerHammer, exploits current fluctuations flowing through the power lines supplying electricity to air-gapped computers.
The researchers have been able to exfiltrate data at a rate of 1,000 bits per second for lines connected to the target computer and 10 bits per second from the grid.
F-Droid: NetGuard – A simple way to block access to the internet per application
Features:
– Simple to use
– No root required
– 100% open source
– No calling home
– no tracking or analytics
– No advertisements
– Actively developed and supported
– Android 5.1 and later supported
– IPv4/IPv6 TCP/UDP supported
– Tethering supported
– Optionally allow when screen on
– Optionally block when roaming
– Optionally block system applications
– Optionally notify when an application accesses the internet
– Optionally record network usage per application per address
– Material design theme with light and dark theme
F-Droid: InviZible Pro: Tor & Firewall, DNSCrypt & I2P
Core Features:
✔ Tor Network – Achieve full anonymity, bypass censorship, and access .onion sites securely
✔ DNSCrypt – Encrypt DNS queries to prevent ISP monitoring and manipulation
✔ I2P (Invisible Internet Project) – Secure and private decentralized networking
✔ Advanced Firewall – Restrict internet access per app and block unauthorized connections
✔ No Root Access Required – Works seamlessly on all devices without modifications
✔ Maintain complete privacy without a paid VPN – Stay anonymous for free
✔ Stealth Mode – Evade Deep Packet Inspection (DPI) and regional restrictions
✔ Free & Open Source – No ads, no tracking, no compromises
F-Droid: HeliBoard – Customizable open-source keyboard
HeliBoard is a privacy-conscious open-source keyboard, based on AOSP / OpenBoard.
Does not use internet permission, and thus is 100% offline.
F-Droid
F-Droid is an installable catalogue of FOSS (Free and Open Source Software) applications for the Android platform. The client makes it easy to browse, install, and keep track of updates on your device.
5 open-source apps from F-Droid that are better than their Play Store rivals
(December 18, 2025)
F-Droid is a repository that hosts a suite of free, open-source Android apps that prioritize function over profit. Unlike the proprietary „black boxes“ found on the Play Store, these apps are transparent, typically ad-free, and respectful of your digital autonomy. While some open-source alternatives are rough around the edges, others have matured into powerhouses. In fact, finding a polished open-source alternative for every Google app is now entirely possible, offering tools that don‘t just mimic their mainstream rivals but actively outperform them.
Enabling DNS over TLS On Android
This is the easiest method to permanently change your DNS settings on Android 9 and newer devices. Navigate to Settings -> Network & Internet- > Advanced. Once you are there you will see an navigation option for private DNS. There will be three options that you can chose from. Off, Automatic, and Private DNS provider host name. You can select Private DNS provider host name and enter …
How to change DNS settings on every device
(August 12, 2022)
By default, your home network likely relies on a DNS server provided by your internet provider. However, these servers aren’t always the fastest and, in some cases, may even allow your ISP to maliciously track your online behavior. To that end, if internet speed and privacy matter a lot, you should perhaps consider changing your DNS server.
The best way to change your DNS server is at the router level, which will affect every single device connected to it.
F-Droid: Aurora Store
Aurora Store is an unofficial, FOSS client to Google Play with an elegant design. Aurora Store allows users to download, update, and search for apps like the Play Store. It works perfectly fine with or without Google Play Services or microG.
Features:
• FOSS: Has GPLv3 licence
• Beautiful design: Built upon latest Material 3 guidelines
• Account login: You can login with either personal or an anonymous account
• Device & Locale spoofing: Change your device and/or locale to access geo locked apps
F-Droid: InviZible Pro: Tor & Firewall, DNSCrypt & I2P
Core Features:
✔ Tor Network – Achieve full anonymity, bypass censorship, and access .onion sites securely
✔ DNSCrypt – Encrypt DNS queries to prevent ISP monitoring and manipulation
✔ I2P (Invisible Internet Project) – Secure and private decentralized networking
✔ Advanced Firewall – Restrict internet access per app and block unauthorized connections
✔ No Root Access Required – Works seamlessly on all devices without modifications
✔ Maintain complete privacy without a paid VPN – Stay anonymous for free
✔ Stealth Mode – Evade Deep Packet Inspection (DPI) and regional restrictions
✔ Free & Open Source – No ads, no tracking, no compromises
F-Droid: Karma Firewall
Ever wondered why lots of apps that have no need for Internet access require Internet Permissions? Its usually either to display adverts or send your sensitive data back to servers in USA, China or Russia. Karma Firewall can block this traffic and protect your personal data. You do not need any technical skills to use, no complicated IP Addressing, Ports, Packet Filtering etc. Simply select the apps you want to block, and you are protected.
Karma Firewall is the safest, most trusted Android Firewall. Karma FW is completely different from all other VPN Firewalls. We intercept no allowed traffic. Karma FW requires NO Internet permissions. Without Internet permissions Karma FW CANNOT steal your data and send it anywhere.
F-Droid
F-Droid is an installable catalogue of FOSS (Free and Open Source Software) applications for the Android platform. The client makes it easy to browse, install, and keep track of updates on your device.
How to change DNS settings on every device
(August 12, 2022)
By default, your home network likely relies on a DNS server provided by your internet provider. However, these servers aren’t always the fastest and, in some cases, may even allow your ISP to maliciously track your online behavior. To that end, if internet speed and privacy matter a lot, you should perhaps consider changing your DNS server.
The best way to change your DNS server is at the router level, which will affect every single device connected to it.
Enabling DNS over TLS On Android
This is the easiest method to permanently change your DNS settings on Android 9 and newer devices. Navigate to Settings -> Network & Internet- > Advanced. Once you are there you will see an navigation option for private DNS. There will be three options that you can chose from. Off, Automatic, and Private DNS provider host name. You can select Private DNS provider host name and enter …
F-Droid: Aurora Store
Aurora Store is an unofficial, FOSS client to Google Play with an elegant design. Aurora Store allows users to download, update, and search for apps like the Play Store. It works perfectly fine with or without Google Play Services or microG.
Features:
• FOSS: Has GPLv3 licence
• Beautiful design: Built upon latest Material 3 guidelines
• Account login: You can login with either personal or an anonymous account
• Device & Locale spoofing: Change your device and/or locale to access geo locked apps
F-Droid: InviZible Pro: Tor & Firewall, DNSCrypt & I2P
Core Features:
✔ Tor Network – Achieve full anonymity, bypass censorship, and access .onion sites securely
✔ DNSCrypt – Encrypt DNS queries to prevent ISP monitoring and manipulation
✔ I2P (Invisible Internet Project) – Secure and private decentralized networking
✔ Advanced Firewall – Restrict internet access per app and block unauthorized connections
✔ No Root Access Required – Works seamlessly on all devices without modifications
✔ Maintain complete privacy without a paid VPN – Stay anonymous for free
✔ Stealth Mode – Evade Deep Packet Inspection (DPI) and regional restrictions
✔ Free & Open Source – No ads, no tracking, no compromises
F-Droid: Karma Firewall
Ever wondered why lots of apps that have no need for Internet access require Internet Permissions? Its usually either to display adverts or send your sensitive data back to servers in USA, China or Russia. Karma Firewall can block this traffic and protect your personal data. You do not need any technical skills to use, no complicated IP Addressing, Ports, Packet Filtering etc. Simply select the apps you want to block, and you are protected.
Karma Firewall is the safest, most trusted Android Firewall. Karma FW is completely different from all other VPN Firewalls. We intercept no allowed traffic. Karma FW requires NO Internet permissions. Without Internet permissions Karma FW CANNOT steal your data and send it anywhere.
F-Droid
F-Droid is an installable catalogue of FOSS (Free and Open Source Software) applications for the Android platform. The client makes it easy to browse, install, and keep track of updates on your device.
Analyse: Geheimdienstlicher Komplex will das stadtweite „Überwachungs“-System in Berlin wieder aktivieren lassen
(Dezember 30, 2016)
Was würde passieren, wenn bekannt würde, dass Berlin, die einflussreichste und mächtigste Stadt auf dem Kontinent Europa und die Hauptstadt der Berliner Republik, durch ein stadtweites Spionagesystem „überwacht“ wird, durch das jede Person beobachtet werden kann „von dem Moment an dem sie die Türschwelle verlässt, bis zu dem Moment an dem sie zurückkehrt“ und dass Arbeit und soziales Verhaltensmuster der Stadtbewohner und -besucher „aufzeichnet, analysiert und archiviert“? Und nicht nur Geheimdienste aus N.A.T.O.-Staaten darauf in Echtzeit zugreifen können?
Nichts. Nichts würde passieren. Die strategische Mehrheit der Bevölkerung würde sich ducken, bücken, beugen, wie sie es in der deutschen Geschichte immer getan hat
Human Rights Expert Sounds Alarm Over Israeli Firm’s ‘Dystopian’ Video-Altering Tech
(December 27, 2022)
The company, whose activities are overseen by the Israeli Defense Ministry, “was set up in 2018 and has offices in Tel Aviv and Washington,” Haaretz reported. “It works solely with state clients in government, intelligence bodies, and law enforcement agencies, almost exclusively—but not just—in the West. According to the internal documents, as of 2021, the company had contracts with Israel valued at $6 million, and had also planned an ‘expansion of existing deployment’ in Israel.”
Toka can tap into web-connected cameras found virtually everywhere—intersections, parking lots, malls, hotels, airports, and even homes. Haaretz compared the firm’s “cyberoffense” capabilities to the 2001 heist movie Ocean’s Eleven.
This ‘dystopian’ new spy technology should terrify you
(December 29, 2022)
Frightening new technology in the hands of government intelligence agencies has the ability to commandeer any smart camera and even “alter feeds” to manipulate both its audio and visuals — including past recordings, Israeli newspaper Haaretz reported.
(…)
Specifically, it can “transform untapped [Internet of things] sensors into intelligence sources” in the interest of “intelligence and operational needs,” according to 2021 internal company documents Haaretz obtained.
(…)
The Toka rep added that its only clients are “the US and its closest allies … Toka does not sell to private clients or individuals.”