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    Which Is the Most Secure Messaging App?

    Signal, WhatsApp, Telegram, ProtonMail, iMessage and beyond...
    by iSecurityGuru

    Friday, October 1, 2021, 6:00 PM

This article was originally published at iSecurityguru.com by Terence Kam, Founder and Cybersecurity Consultant. Learn more about Terence and his work here.

Emails and messages are the lifeblood of your online activities. Unfortunately, for many people, they are unwittingly sent and received in an insecure manner. This has great privacy implications. It is a very disturbing fact that a lot of private and confidential information is transmitted insecurely by people every day, with very little regard for their privacy.

If you have to trust your life to keep your messages private, which one should you use?

Before we can delve further, there are a few concepts you need to understand:

Transport Security

Most of the time, messages don’t travel directly from the sender to the recipient. They have to go through an intermediary. Even traditional snail mail requires an intermediary, which is the postal service. Likewise, most messaging service providers have servers on the Internet for routing your messages to the correct recipient and holding messages temporarily if the recipient is not yet connected online.

Transport layer security ensures your messages are secured on the way to the messaging server and from the server to your recipient. To put it simply, whoever looks at the traffic between you and your messaging server from the outside (e.g. the NSA) can only see gibberish. But once your messages arrive at the server safely, the server can read your messages. So, how do you protect your messages from the prying eyes of whoever controls the server? That requires end-to-end encryption.

End-to-End Encryption (E2EE)

This means that before your message leaves your device/computer, it is encrypted with a key that only you and your recipient know. Then you send that encrypted message to the server with a layer of transport security. Once your encrypted message arrives at the messaging server, whoever controls the server still cannot read your message because it is encrypted. Then the server forwards the encrypted message to your recipient. Your recipient can read your message because both of you have engaged in a cryptographic protocol to ensure that he/she has the decryption keys to read your message.

To put it simply, with E2EE, the messaging server receives and forwards gibberish for its users.

Perfect Forward Secrecy (PFS)

Imagine the situation where the NSA secretly seize control of the messaging server. It will then be able to collect all the gibberish (encrypted messages) that both you and the recipient are exchanging. Let’s say the NSA has been collecting your gibberish for the past 10 years.

Next, let’s say one day, the NSA seize or hack your device and obtain the encryption key that you use for E2EE encryption. In one swoop, they will then be able to decrypt all the gibberish that they have been collecting for the past 10 years. In other words, all the private communication between you and your recipient in the past 10 years is compromised. So, how do you stop this from happening?

The solution is to use a Perfect Forward Secrecy (PFS) cryptographic protocol. In this protocol, the encryption keys in E2EE are used once only and discarded and lost forever. So, that means even if the NSA hacks your device and steal your encryption keys, they cannot decrypt your past communications with your recipient. They may be able to compromise your future communications, but all the messages that you had sent for the past 10 years are still safe.


Now, let us look at each messaging service one by one.

1. Email

Email and privacy is an oxymoron.

There may be Transport Security when you transmit your email to your email server. But once it arrives at your email server, all bets are off. You have no control over how your email will be kept private. Therefore, as I wrote in my book, Digital Security & Privacy for Dummies, emails are as private as postcards.

2. ProtonMail

Take note of this: only emails sent between ProtonMail users are protected with E2EE. Once you send emails to non-ProtonMail users, you lose the protection of E2EE.

However, emails sent to non-ProtonMail users can be encrypted with a password. The recipient must know that password. But then, the question is, how do you communicate to your recipient to pre-arrange the password? If you use a secure online communication channel to pre-arrange that password with your recipient, then you may as well send the content of the email using that channel in the first place. That makes ProtonMail redundant.

There are a couple of other problems with ProtonMail. Firstly, there is no PFS with ProtonMail. Secondly, as this Tech Crunch article reported, you are anonymous until you are not when ProtonMail is forced by the Swiss authorities to reveal your IP address.

3. iMessage

Apple claimed that iMessage has E2EE. But as their Apple Platform Security white paper revealed, they still control the distribution of encryption keys. So, that cannot be truly E2EE. Furthermore, iMessage does not have PFS.

But my biggest reservation with iMessage is the strength of the cryptography that they use. I have written in-depth about this at Can you trust Apple’s iMessage encryption with your life?.

4. Telegram

I am NOT in favour of Telegram. Here are a few reasons why…

Their crypto is unproven and messy

They rolled their unproven cryptographic protocols. As cybersecurity expert Steve Gibson said,

Telegram’s crypto is a godforsaken mess. I’ve never used it and never would!

The problem with using unproven cryptographic protocols is that you never know what security problems are waiting to be discovered in future. Recently, the future has already arrived. A security researcher has analysed their protocol and found some weaknesses:

We performed a detailed security analysis of the encryption offered by the popular Telegram messaging platform. As a result of our analysis, we found several cryptographic weaknesses in the protocol, from technically trivial and easy to exploit to more advanced and of theoretical interest.

For most users, the immediate risk is low, but these vulnerabilities highlight that Telegram fell short of the cryptographic guarantees enjoyed by other widely deployed cryptographic protocols such as TLS.

The last sentence is yet another serious problem with Telegram.

Usually, messaging services uses TLS in their Transport Security, which is a proven, time-tested industry-standard cryptographic protocol. TLS has been analysed, scrutinised, poked and taken apart for many long years. It is ubiquitous because it stands the test of time. What you are reading now on the website is secured with TLS. Your Internet banking is secured with TLS.

But what does Telegram use for their Transport Security? They use their unproven protocol called MTProto. And now, the above-mentioned security researcher found some problems with it.

Group chats are not E2EE

Next, group chats in Telegram are not secured with E2EE. Telegram can see all your group chat messages.

One-on-one chats are not E2EE by default

By default, when you chat with a person on Telegram, it is not secured with E2EE. By default, Telegram can see all your one-on-one chat messages.

If you want to send a private message, you have to use their “Secret Chat” feature to turn on E2EE using Telegram’s discredited MTProto cryptographic protocol.

Next, I find a usability problem with their “Secret Chat” feature. Before you can send an E2EE message to the recipient, you have to wait for him/her to come online on Telegram. So, as long as your recipient has not logged into Telegram, you cannot establish an E2EE chat session. You have to wait. The awkward usability problem arises from the way they implement PFS in their “Secret Chat”.

5. Signal

Signal is my favourite private messaging app. They use proven time-tested cryptographic protocols. Their software is open-sourced, which means their software code is exposed to the public to scrutinise. In fact, Signal’s cryptographic protocol is the gold standard that is so good that other messaging apps (e.g. Google’s encrypted RCS chat, Facebook Messenger, WhatsApp, Skype) are adopting it too. However, Signal’s implementation of their cryptographic protocol is the most private.

All messages, be it one-on-one chats and group chats are E2EE. You cannot turn off E2EE. Not only that, every message that you send is protected with PFS using their Double-Rachet algorithm. The beauty of their Double-Rachet algorithm is that you can have PFS without the awkward usability problem that Telegram has. That is, you can send an E2EE message without having to wait for your recipient to log in to Signal first.

Now, what if the NSA secretly seize control of Signal’s server, then pretend to be your recipient in front of you and then pretend to be you in front of your recipient? That is the classic Man-In-The-Middle (MITM) attack. You could then be sending an encrypted message to the NSA, who then read it before re-sending it to your recipient. In that case, the Signal app provides a means for you to find out about this ruse. The next time you meet your recipient face-to-face, both of you can compare the “Safety Number” of the chat session in the Signal app. If they both match in both of your smartphones, then that conversation is private. If they don’t match, you know that someone is listening in.

Another feature I like about Signal is its “Disappearing Message” feature. You can set all messages in a chat session to automatically disappear after a specific period of time after it is read by the recipient. If you combine this feature with PFS, your chat is as close to ‘off-the-record’ as you can get for an online messaging service. NSA cannot decrypt your past messages and all decrypted messages residing in everyone’s phone will disappear eventually.

In terms of privacy, Signal collects very little information about you. One notable privacy feature is “Sealed Sender”. In this feature, the identity of the sender of every encrypted message is also encrypted along with the message content. As a result, only the recipient knows who the sender of the message is. When Signal receives an encrypted message to forward to the recipient, it does not know who the sender of the message is. Hence, not even the government can force Signal to reveal who is sending messages to who because they made it technically impossible to know.

There is, however, one problem with Signal. To use Signal, you need to link your phone number to the service. Your phone number can be linked to your identity. Therefore, you cannot use Signal anonymously.

6. WhatsApp

Now, let’s come to the biggest messaging service: WhatsApp.

WhatsApp is a paradox. On one hand, they adopt Signal’s cryptographic protocols to implement E2EE and PFS. That should make WhatsApp very good for privacy right? Unfortunately, no.

WhatsApp is owned by Facebook. But the words “privacy” and “Facebook” is an oxymoron. Even though Facebook cannot read the contents of your WhatsApp messages, they ‘compensate’ by collecting all other information about you. To show you the difference between Signal and WhatsApp, below is Apple’s App Store’s privacy report for the various messaging apps:

Messaging app's privacy report

Basically, anything that is not the content of your encrypted messages will be hoovered up by Facebook’s powerful data collection machine. In contrast, Signal wants to collect as little information about you as possible.

There is another thing to note about WhatsApp. If one of your recipients reports one of your messages to Facebook, that message, along with four previous messages, will be decrypted and sent to Facebook for review.

7. Threema

Threema is an obscure messaging app that I like too. It has E2EE and in my opinion, a more user-friendly design. Unlike all the other messaging apps, Threema is not free. And unfortunately, hardly anyone is using Threema.

The advantage of Threema over Signal is that you can use it anonymously. You don’t need to use your phone number or email address to open a Threema account.

The disadvantage of Threema is that it does not have PFS.

So, which messaging apps should you use? It depends on what is most important to you.

  1. If anonymity is very important to you, then don’t use Signal. On the other hand, if privacy is very important to you, and you want your messages to be as close to ‘off-the-record’ as possible, Signal is an ideal choice.
  2. ProtonMail is supposed to be anonymous, but the latest incident shows that your anonymity can be blown away by law.
  3. WhatsApp can keep your message content private, but all your other information is fair game for Facebook to collect. So, you don’t really have privacy with WhatsApp.
  4. iMessage is private as long as you trust Apple and you are not specially targeted by an attacker with the resources of a nation-state.
  5. If anonymity is very important to you but you can’t care less about privacy, then you can use Telegram.
  6. If you want privacy and anonymity but is willing to forgo PFS, then Threema is the choice. However, since hardly anybody is using Threema, you can’t use to communicate with most people.

One final point: if your device or messaging app ever gets hacked, all bets are off in terms of security and privacy. In such an event, the hacker can circumvent all the encryption, security and privacy features of your messaging app.

Do you have insights on secure messaging to share? Join the conversation below…

 

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30 Comments

  • Fri, Oct 01, 2021 - 7:19pm

    #1
    MountainBlues

    MountainBlues

    Status: Bronze Member

    Joined: Oct 09 2011

    Posts: 48

    6

    Helpful! Who runs Signal?

    Very interesting and helpful. I had heard there were issues with Telegram. This explained what those are.

    Protonmail between other users seems pretty good.

    I use Signal as much as possible for texting and calls. I’m not doing anything illegal, I just like privacy. What a concept! So old fashioned. But as was recently explained, “free” things mean YOU are the product. Signal is free. Yes, you can donate but… so what’s the story?

    Thanks for the post.

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  • Fri, Oct 01, 2021 - 9:51pm

    #2
    thuber

    thuber

    Status: Member

    Joined: Jul 24 2009

    Posts: 22

    1

    Keybase

    I used to really like keybase, I thought is was promising, until it was aquired by zoom. Now Im not sure.

    proton mail:
    Be aware that proton mail has complied with European law enforcement requests to turn over records about it’s users activities despite what their privacy claims are.  While they may not be completely private, I do believe it offers relatively better email security than average.

    Matrix.org

    Some of the groups that left keybase have migrated to Matrix.
    https://matrix.org

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  • Fri, Oct 01, 2021 - 10:36pm

    richcabot

    richcabot

    Status: Bronze Member

    Joined: Apr 05 2011

    Posts: 389

    4

    Proton doesn't cooperate with European authorities, only Swiss

    “Proton must comply with Swiss law. As soon as a crime is committed, privacy protections can be suspended and we’re required by Swiss law to answer requests from Swiss authorities,”  If a foreign law enforcement agency can convince a Swiss court to order disclosure then Proton must comply.

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  • Fri, Oct 01, 2021 - 11:28pm

    #4
    lacking_vegetables

    lacking_vegetables

    Status: Member

    Joined: Aug 19 2021

    Posts: 23

    3

    lacking_vegetables said:

    In terms of privacy, Signal is considered quite good. On Android you can install https://molly.im an open source version of Signal.

    The problem with Signal is that they run a bunch of servers and when those servers go down then Signal doesn't work anymore. That happened last week to me.

    One interesting alternative is Delta Chat (https://delta.chat) which uses encrypted email as a basis to send instant messages. The benefit to using email servers is that they are comparatively more decentralized than Signal's servers.

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  • Sat, Oct 02, 2021 - 2:58am

    #5
    Marco Di Cesare

    Marco Di Cesare

    Status: Member

    Joined: Sep 11 2021

    Posts: 3

    0

    Marco Di Cesare said:

    Oxen (aka Loki) is another crypto based messenger service. check it out

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  • Sat, Oct 02, 2021 - 3:42am

    #6
    B3grA

    B3grA

    Status: Member

    Joined: May 21 2021

    Posts: 9

    1

    B3grA said:

    I am using Threema. This is an app developed in Switzerland. I guess more people use it in Europe than in the US

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  • Sat, Oct 02, 2021 - 7:26am

    iSecurityGuru

    iSecurityGuru

    Status: Member

    Joined: Mar 21 2020

    Posts: 10

    2

    iSecurityGuru said:

    Signal is run by Moxie Marlinspike (real name: Matthew Rosenfeld). You can check him out on Wikipedia.

    Signal is funded by community grant and donation. So, you can see it as non-profit organisation. WhatsApp co-founder, Brian Acton, in an act of penance for selling WhatsApp to Facebook, donated $50m to Signal.

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  • Sat, Oct 02, 2021 - 7:46am

    #8
    brushhog

    brushhog

    Status: Gold Member

    Joined: Oct 06 2015

    Posts: 832

    10

    brushhog said:

    The most secure practice is not to do or say anything online that you wouldnt want your worst enemy to know about.

    You want to say something to somebody? Tell them in person or send them a letter via snail mail.

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  • Sat, Oct 02, 2021 - 7:55am

    #9
    Henrik Kalmeyer

    Henrik Kalmeyer

    Status: Member

    Joined: Jun 18 2021

    Posts: 1

    9

    This Tip fix the 1 problem with Signal

    Hello PP

    Strange that my first post here will be how to fix the 1 problem with signal.

    "There is, however, one problem with Signal. To use Signal, you need to link your phone number to the service. Your phone number can be linked to your identity. Therefore, you cannot use Signal anonymously."

    This is what you do.

    1. You get a burner phone and sim card

    2. Go to a location away from home and Install Signal and receive the signal code by sms on the burner phone, but you put that code into your real phone.

    Problem solved, it works 🙂

     

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  • Sat, Oct 02, 2021 - 11:08am

    #10
    saturn_ls1

    saturn_ls1

    Status: Member

    Joined: Feb 01 2020

    Posts: 18

    4

    The only system which is truly secure

    The only system which is truly secure is one which is switched off and unplugged locked in a titanium lined safe, buried in a concrete bunker, and is surrounded by nerve gas and very highly paid armed guards. Even then, I wouldn't stake my life on it.
    -- Gene Spafford, Director, Computer Operations, Audit, and Security Technology (COAST) Project, Purdue University

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  • Sat, Oct 02, 2021 - 2:24pm

    #11
    demetrimamacos

    demetrimamacos

    Status: Member

    Joined: Oct 02 2021

    Posts: 1

    0

    Fully Secure Messaging comes at a cost

    Fully secure messaging is possible when using P2P technology, decentralized storage and your seed phrase to sign into your wallet. GSTelecom is powered by the g999main.net blockchain and fully decentralized.

    If a messaging app can show whether a message is read or not, is it really decentralized?

    Read the whitepaper for more details.

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  • Sat, Oct 02, 2021 - 4:45pm

    PathlessLand

    PathlessLand

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    Joined: Jul 05 2021

    Posts: 3

    1

    PathlessLand said:

    I use Threema as well, and love it!  I'm not sure what the author means about it not having PFS, Threema's documentation says it does?  It also has a way to exchange keys in person to enhance its authentication of future conversations.  This is fun and adds a little peace of mind, although honestly there can't be that many Threema spoofers and I doubt I'll ever be their target.  The fact it costs a few bucks also is good, I think, for a lot of reasons.

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  • Sat, Oct 02, 2021 - 5:50pm

    iSecurityGuru

    iSecurityGuru

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    Joined: Mar 21 2020

    Posts: 10

    0

    iSecurityGuru said:

    The PFS in Threema is only at the Transport Security level. There's no PFS at the E2EE level.

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  • Sat, Oct 02, 2021 - 5:53pm

    iSecurityGuru

    iSecurityGuru

    Status: Member

    Joined: Mar 21 2020

    Posts: 10

    0

    iSecurityGuru said:

    In the US, are you allowed to activate a SIM anonymously?

    in Australia, SIM activation requires proof of identity.

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  • Sat, Oct 02, 2021 - 6:03pm

    becoming too prepared

    becoming too prepared

    Status: Member

    Joined: Aug 16 2021

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    becoming too prepared said:

    yes, in the states you can pay cash at target (common department store as an example) for a sim without ID and register+activate with just an email address.

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  • Sat, Oct 02, 2021 - 6:09pm

    #16
    Cre8altern8

    Cre8altern8

    Status: Member

    Joined: Mar 21 2020

    Posts: 6

    0

    What about Tutanota/Tutamail?

    I didn't see any reference to Tutanota/Tutamail. Is it any good?

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  • Sat, Oct 02, 2021 - 7:51pm

    #17
    Stph

    Stph

    Status: Bronze Member

    Joined: Jul 01 2021

    Posts: 114

    0

    Does Threema (or anything but Signal) support video-chat??

    I was happy with Signal, but they wouldn't allow me to stick with iOS 10 (which has a lot of irreplaceable apps I rely on every day) and eventually disconnected me for refusing to "upgrade" my OS.   What I most liked was video chat.

    Do any of the other decent secure apps support video chat and, in particular support both iOS and Android?

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  • Sat, Oct 02, 2021 - 8:51pm

    #18
    redcloud

    redcloud

    Status: Member

    Joined: Mar 12 2009

    Posts: 32

    0

    Tom's Guide review of Telegram vs Signal

    https://www.tomsguide.com/news/signal-vs-telegram#xenforo-comments-481002

    They pretty much concur that Signal is better in most respects than Telegram although the comments are worth reading.  For instance,

    "Speaking of phones... with Signal you MUST use your phone number to communicate. Telegram, you can communicate with others using a handle - no one need ever know your phone number. Considering the importance that phone numbers have these days, that is a big issue. "

    and,

    "Further more the encryption used by Signal which according to this article is the same used by WhatsApp was chosen by the US government so it is more likely to have security flaws and backdoors."

    Personally I like Telegram's channel and group features, and more of my contacts use it than Signal.  To stay out of the clutches of the security state I recommend, as someone else here did, to not put things on the internet that you wouldn't say in a public place.

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  • Sat, Oct 02, 2021 - 9:24pm

    Island girl

    Island girl

    Status: Silver Member

    Joined: Nov 27 2017

    Posts: 254

    1

    Threema supports video chat

    https://threema.ch/en/features

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  • Sun, Oct 03, 2021 - 4:27am

    #20
    B3grA

    B3grA

    Status: Member

    Joined: May 21 2021

    Posts: 9

    1

    B3grA said:

    Here is a brief description of how Threema stores data

    https://threema.ch/en/security

    Using Threema ought to generate as little data on servers as possible – this is part of the concept. For that reason, data like e.g. contacts or group chats are stored in a decentralized way on user devices, instead of on a Threema server. Our servers assume the role of a switch; messages and data get forwarded, but not permanently stored. Where there is no data, there is nothing to be accessed or misused. However: without some kind of (temporary) data storage, there cannot be any asynchronous communication. In the following we will explain what kind of data we store, how we store it and for how long.

    • Messages and group chats: As soon as a message has been successfully delivered to the recipient, it is immediately deleted from the server. All messages and media are transmitted end-to-end encrypted in Threema. This means: even if someone intercepted your message, it would be completely useless. Only the intended recipient is able to decrypt and read a message.
    • No contact lists are stored when synchronizing contacts: The email addresses and phone numbers from your address book get anonymized (hashed) before they reach the server. Once the comparison is finished, they are immediately deleted from the server.
    • Key pairs are generated in a decentralized way on your device. Your private key is never known to us, and therefore we cannot decrypt any message contents.
    • Threema doesn't log who is communicating with whom (which Threema IDs are communicating).

    Further information: Cryptography Whitepaper.

    I believe it is really worth to pay once five bucks for this app

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  • Sun, Oct 03, 2021 - 2:44pm

    #21
    dan314159

    dan314159

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    Joined: Oct 08 2016

    Posts: 22

    0

    Threat model

    https://xkcd.com/538/

    Folks need to consider their threat model. All of the above solutions have a central person (CEO, etc.) that can be hit with a wrench. End-to-end privacy and anonymity from a government attacker is technically achievable, but no one reading this is capable of achieving it.

    Typically, your goal should be to avoid advertising company surveillance to minimize their ability to manipulate you into making suboptimal purchasing decisions. Use a VPN to disguise your IP and ad blocking software like Brave Browser.

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  • Sun, Oct 03, 2021 - 6:01pm

    #22
    Gabriel Wilson

    Gabriel Wilson

    Status: Member

    Joined: Sep 05 2021

    Posts: 3

    0

    Matrix!..or?

    I currently run a Matrix server for my close personal contacts but it has been a drag trying to get people on.
    I see it as a temporary solution until a truly peer-to-peer decentralised chat application is born.

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  • Sun, Oct 03, 2021 - 7:13pm

    iSecurityGuru

    iSecurityGuru

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    Posts: 10

    0

    iSecurityGuru said:

    Tutanota is also good. However, the drawbacks of ProtonMail also applies to Tutanota.

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  • Mon, Oct 04, 2021 - 2:41am

    #24
    ManBearPig

    ManBearPig

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    Joined: Aug 03 2021

    Posts: 3

    0

    Viber

    I didnt see anything regarding Viber on the thread.  I have heard that it has E2EE but all data flows through Israel.  Any thoughts?

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  • Mon, Oct 04, 2021 - 6:57am

    #25
    Andy in the Sun

    Andy in the Sun

    Status: Silver Member

    Joined: May 28 2021

    Posts: 139

    0

    Viber

    yeah Viber,

    I also was wondering why it wasn't mentioned. So 8 years ago it was quite "in".

    Actually I liked it... but then it lost ground to whatsapp... and never recovered.

    And as per Israel... everyone knows, professional spyware comes from Israel  😉

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  • Mon, Oct 04, 2021 - 9:53am

    #26
    mchchl

    mchchl

    Status: Bronze Member

    Joined: Jun 07 2021

    Posts: 42

    2

    E.mail metadata

    As explained by Rob Braxman [on Odysee and YT] even encrypted e.mail is problematic because it reveals your IP address as part of the always unencrypted metadata. He proposes the following multi step strategy:

    1- no real names on internet or join real phone number platforms like FB/IGram/WhatsApp.
    2- use multiple emails partitioned by function: family/friends, business, social media, etc.
    3 -Have multiple phone No's, one for real & other for internet.
    4- Use a de-googled Phone - no device finger print
    5 - Use a VPN - IP kept private.

    He admits it does take a bit of work, but it is a small price to pay to regain privacy going forward.

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  • Mon, Oct 04, 2021 - 3:29pm

    #27
    Chuck in Belize

    Chuck in Belize

    Status: Silver Member

    Joined: May 23 2020

    Posts: 243

    0

    Anybody know who owns Telegram?

    Just curious.
    Because in this day and age one needs to know who you're dealing with.
    I've used Telegram and it's OK .. and easy enough to use.
    But of course I never say anything I wouldn't want the Snoops to read.

    -- Chuck

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  • Wed, Oct 06, 2021 - 12:47pm

    jgotobed

    jgotobed

    Status: Member

    Joined: May 30 2019

    Posts: 4

    0

    @home personal servers

    The Start9  github.com/Start9Labs is one of many self hosted  projects in the security space. (Customer since late 2020, no other involvement ) Derived from FOSS it’s a GUI based implementation of many security focused apps:Bitwarden, Cups,Sphinx, Matrix. Primarily a BTC/LN platform but you pick & choose to match your interest.
    h

    Stay Free,

    joe

     

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  • Sat, Oct 09, 2021 - 1:23pm

    #29
    westcoastjan

    westcoastjan

    Status: Platinum Member

    Joined: Jun 04 2012

    Posts: 1078

    1

    Remembering the good ol' days...

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  • Sat, Oct 16, 2021 - 6:33pm

    travelbug007

    travelbug007

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    Joined: Dec 16 2020

    Posts: 10

    1

    Signal better than Telegram

    Hi Chuck,

    Rob Braxman did a great cover of the various messaging/email secure apps, and Signal rated a bit higher than Telegram..





    Worth the watch if your interested in Privacy/Security...

    He has great topics..

    Cheers and see everyone on Signal I hope!!

     

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