Signal Messenger is consider the one of the most secure apps ever conceived. The brainchild of privacy legend Moxie Marlinspike, Signal replaces your default SMS messenger app, making it almost seamless to use.
What is Signal?
Signal is a secure messenger app that replaces your Android phone or iPhone’s regular SMS app. Messages to and from other Signal users are sent over the internet and protected by very strong end-to-end encryption. Signal also supports VoIP and video calls between the users, it is available for android, iPhone and desktop devices.
Here are Five reasons why every one should be using signal
1- Signal is an open source application
Open source software is a software whose source code has been made publicly available by its copyright holder. This means that it can be independently audited for errors and to ensure that it isn’t doing something it shouldn’t. Signal was fully independently audited in 2016 and was found to be cryptographically secure. If the application is closed source, it will be hard to know what the application’s code is really doing, and so we cannot relay upon closed source applications on the security of our communications.
2- Signal employs end-to-end encryption
With Signal, all messages and traffic is encrypted prior to be sent, and can only be decrypted by the intended recipient(s). This emanates the need for any third party to be trusted on the security of your data. The only way for an adversary to access messages sent by Signal is if it has direct physical access to your or the recipient’s phone. Even then, Signal includes the option to encrypt all stored messages, which make it impossible to access them unless the phone owner can somehow be coerced into revealing their passcode. However , it is worth mentioning that sending a message to a non-Signal users is using the regular SMS and then, it is not secure.
3- Signal private messenger is secure
Signal messages are securely encrypted with Signal Protocol, which is arguably the most secure text messaging protocol ever developed. It amalgamates the Extended Triple Diffie-Hellman (X3DH) key agreement protocol, Double Ratchet algorithm, pre-keys, and uses Curve25519, AES-256, and HMAC-SHA256 as cryptographic primitives.
4- It is NOT WhatsApp
5- Signal is praised by Edoward Snowden and recently recommended Elon Musk
For years, the ex-NSA (National Security Agency) whistleblower Edward Snowden has been raising awareness about so-called secure messaging applications or programs and publically criticised apps like Skype, Google Allo, and Telegram. In fact, NSA documents leaked by him showed how Microsoft handed over plain text Skype chats of users to the agency. But today, citing the tense situation in Iran, the whistleblower has posted a series of tweets explaining why Telegram Messenger app is unsafe and it can be secured with little effort. Snowden is a big fan of encrypted messaging app Signal and advises his followers to use Signal. In fact, in one of his tweets, he mentioned using Signal app every day.
Tesla and Spacex CEO Elon Musk who has been a Facebook products critic in recent years, has tweeted to his 41.5 Million followers to use signal.
Signal has revolutionized private chat by introducing highly secure open source end-to-end encrypted messaging that is as easy and seamless to use as sending regular SMS text messages. Quite simply, if you want secure private conversations, then there is no real competition to Signal.