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What is the security differences between Signal, Telegram, and WhatsApp messaging apps



What is the security differences between Signal Telegram and WhatsApp messaging apps

If your choice of encrypted messaging app is a toss-up between Signal, Telegram, and WhatsApp, don’t waste your time with anything besides Signal. This isn’t about which has cuter features, more bells, and whistles, or is generally helpful to use – this is about pure privacy. If that is the thing that you’re after, nothing beats Signal.

At this point, you likely definitely realize what occurred. On Jan. 7, in a tweet heard ’round the world, tech mogul Elon Musk proceeded with his quarrel with Facebook by supporting individuals drop its WhatsApp messenger and use Signal.

Twitter CEO Jack Dorsey retweeted his call. Around a similar time, right-wing social network Parler went dark after the Capitol attacks, while political boycotters fled Facebook and Twitter. It was the ideal storm – the quantity of new clients on Signal and Telegram has flooded by several million since.

The jolt likewise reignited security and privacy scrutiny over messaging apps all the more broadly. Among the three presently ruling download numbers, there are a few commonalities. Every one of the three is mobile apps accessible in the Play Store and App Store, and which support cross-platform messaging, have group chat features, offer multifactor authentication, and can be utilized to share files and photos. They all give encryption to messaging, voice, and video calls.

Signal, Telegram, and WhatsApp all use end-to-end encryption in some bit of their app, implying that if an external party intercepts your texts, they ought to be scrambled and unreadable. It additionally implies that the specific content of your messages as far as anyone knows can’t be seen by the individuals working for any of those applications when you are communicating with another private client. This forestalls law enforcement, your mobile carrier, and other snooping entities from having the option to read the contents of your messages, in any event, when they intercept them (which happens more frequently than you may think).

The privacy and security differences between Signal, Telegram, and WhatsApp couldn’t be greater, however. This is what you need to think about every one of them.


  • Doesn’t gather information, just your phone number
  • Free, no advertisements, supported by not-for-profit Signal Foundation
  • Completely open-source
  • Encryption: Signal Protocol

Signal is an ordinary one-tap install app that can be found in your normal marketplaces like Google’s Play Store and Apple’s App Store and works much the same as the standard text-messaging app. It’s an open-source improvement gave free of charge by the nonprofit Signal Foundation and has been broadly utilized for years by high-profile privacy icons like Edward Snowden.

Signal’s main function is that it can send – to either an individual or a group – completely encrypted text, video, audio, and picture messages, in the wake of verifying your phone number and allowing you independently verify other Signal clients’ identity. For a deeper plunge into the expected pitfalls and limitations of encrypted messaging apps, CNET’s Laura Hautala’s explainer is a lifeline.

With regards to privacy, it’s difficult to beat Signal’s offer. It doesn’t store your client information. What’s more, beyond its encryption ability, it gives you broadened, onscreen privacy options, including app-specific locks, blank notification pop-ups, face-blurring antisurveillance tools, and disappearing messages.

Infrequent bugs have demonstrated that the tech is a long way from bulletproof, obviously, yet the overall arc of Signal’s reputation and results have kept it at the top of every privacy-savvy individual’s list of identity protection tools. The Guardian, The Washington Post, The New York Times (which additionally suggests WhatsApp), and The Wall Street Journal all prescribe utilizing Signal to contact their reporters securely.

For years, the core privacy challenge for Signal lay not in its technology but rather in its more extensive appropriation. Sending an encrypted Signal message is extraordinary, however, if your beneficiary isn’t using Signal, at that point your privacy might be nil. Consider it like the herd immunity made by vaccines, however for your messaging privacy.

Since Musk’s and Dorsey’s supports have sent a flood of clients to get a security supporter shot, nonetheless, that challenge might be a thing of the past.


  • Information linked to you: Name, phone number, contacts, user ID
  • Free, forthcoming Ad Platform and premium features, funded predominantly by organizer
  • Just partly open-source
  • Encryption: MTProto

Telegram falls someplace in the privacy scale, and it stands separated from other messenger apps as a result of its efforts to establish a social network-style environment. While it doesn’t gather as much information as WhatsApp, it likewise doesn’t offer encrypted group calls like WhatsApp, nor as much client data privacy and company transparency as Signal. Information gathered by Telegram that could be connected to you incorporates your name, phone number, contact list, and user ID.

Telegram additionally gathers your IP address, something different Signal doesn’t do. Furthermore, dissimilar to Signal and WhatsApp, Telegram’s one-to-one messages aren’t encrypted by default. Or maybe, you need to turn them on in the app’s settings.

Telegram group messages likewise aren’t encrypted. Scientists found that while a portion of Telegram’s MTProto encryption scheme was open-source, a few parts were not, so it’s not totally clear what befalls your texts once they’re in Telegram’s workers.

Telegram has seen a few breaks. Around 42 million Telegram client IDs and phone numbers were uncovered in March of 2020, thought to be crafted by Iranian government authorities. It would be the second monstrous breach connected to Iran, after 15 million Iranian clients were uncovered in 2016.

A Telegram bug was abused by Chinese experts in 2019 during the Hong Kong protests. At that point, there was the deep-fake bot on Telegram that has been permitted to make produced nudes of women from regular pictures. Most recently, its GPS-enabled feature permitting you to discover others close to you has made clear issues for privacy.


  • Information connected to you: Too a lot to list
  • Free; business versions accessible for free, funded by Facebook
  • Not open-source, aside from encryption
  • Encryption: Signal Protocol

Let’s be clear: There’s a difference between privacy and security. Security is tied in with defending your information against unauthorized access, and privacy is tied in with safeguarding your identity paying little mind to who access that information.

On the security front, WhatsApp’s encryption is equivalent to Signal’s, and that encryption is secure. Yet, that encryption protocol is one of the few open-source parts of WhatsApp, so we’re being approached to believe WhatsApp more than we are Signal. WhatsApp’s actual app and other infrastructure have likewise confronted hacks, similarly as Telegram has.

Jeff Bezos’ phone was broadly hacked in January of 2020 through a WhatsApp video message. In December of the same year, Texas’ attorney general claimed – however, has not demonstrated – that Facebook and Google struck a back-room deal to uncover WhatsApp message content. A spyware merchant focused on a WhatsApp vulnerability with its software to hack 1,400 gadgets, bringing about a claim from Facebook.

WhatsApp’s unencrypted cloud-based backup feature has for quite some time been viewed as a security risk by privacy specialists and was one way the FBI got proof on infamous political fixer Paul Manafort. To finish it off, WhatsApp has likewise gotten known as a sanctuary for scam artists and malware purveyors throughout the years (similarly as Telegram has pulled in its a lot of platform misuse).

At the point when WhatsApp says it can’t see the content of the encrypted messages you send to another WhatsApp client, what it doesn’t say is that there’s a laundry list of other information that it gathers that could be connected to your identity: Your unique device ID, usage and advertising information, buy history and financial data, physical location, phone number, your contact data and that of your list of contacts, what products you’ve collaborated with, how frequently you use the app, and how it performs when you do. The list goes on. This is much more than Signal or Telegram.

At the point when someone asked the organization for what reason clients should agree to less data privacy, a WhatsApp representative called attention to that it limits how it manages this client information, and that the information collection just applies to certain clients. For example, financial transaction data collection would be important just to those WhatsApp clients in Brazil, where the service is accessible.

“We do not share your contacts with Facebook, and we cannot see your shared location,” the WhatsApp representative told CNET.

“While most people use WhatsApp just to chat with friends and family, we’ve also begun to offer the ability for people to chat with businesses to get help or make a purchase, with health authorities to get information about COVID, with domestic violence support agencies, and with fact-checkers to provide people with the ability to get accurate information,” the spokesperson said. “As we’ve expanded our services, we continue to protect people’s messages and limit the information we collect.”

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