The app is owned by Meta, which also owns Facebook and Instagram, and retains a significant amount of metadata about conversations. WhatsApp is a free app that secures phone calls and text messages using end-to-end encryption and allows you to delete messages even after they’ve been read. You can do this through several services, such as Google Voice, Skype or Twilio, or you can purchase a prepaid SIM card. By default, Signal saves your messages on your device unless you configure them to self-destruct.įor additional anonymity, consider setting up a dedicated phone number to use with Signal. Signal does save some information about you, including your phone number, when you signed up and when you were last active, but stores no metadata about your communications. The Signal Protocol is end-to-end encrypted, which means only the sender and recipient can access the conversations. Signal is a free app that allows users to make and send encrypted calls and self-destructing text messages, images and videos. Get ProtonMail Learn more FPF guide Signal You can also use ProtonMail, an email provider that supports PGP.įor additional anonymity, set up a dedicated email address to communicate with us.Įmail address: address: key: B4BC 1138 6DD7 BB01 801A 2594 0486 46F7 1E7B 788C Several browser extensions, such as Mailvelope, Enigmail and FlowCrypt, make it easy to use PGP with existing email providers, such as Gmail. Keep in mind that many email providers retain your messages unless you direct otherwise. Be aware that while the content of PGP-encrypted emails is secure, metadata - such as information about the sender or recipient, time stamps and the subject - is not. Do not use it if your information is sensitive or if you are concerned about someone knowing that you are a source.įor more sensitive tips, you can send email encrypted with Pretty Good Privacy (PGP). Regular email is convenient but not secure. The Freedom of the Press Foundation (FPF) offers more detailed guides aimed at maintaining privacy and anonymity. Before using any of these apps or tools, consider taking a few extra security precautions, including: considering whether the network you use can be used to identify you or your activity using a secure web browser or operating system disabling features that back data up to cloud services and avoiding using accounts or devices linked to your name, email or phone number. Remember that no method is completely secure and what measures you should take depend on how much anonymity you need. To share feedback about something you saw on CNN or CNN.com, use our feedback form. These channels are not for press releases. The most compelling tips are those that can be corroborated with documentation or evidence. Tips should be newsworthy, meaning they concern systemic problems of timely and broad public interest. We regularly review submissions, but because we receive a large number, we cannot respond to or investigate every tip. Do you have a tip or sensitive material to share with CNN? We offer several ways to reach our journalists.
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