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an animation showing a cable visualizing an encrypted flow

In today's digital era, communication plays a key role in every firm. Big companies have to deal with a significant quantity of sensitive data on a daily basis, including intellectual property, trade secrets, financial information, and private client data. Safeguarding this data is vital to protecting the company's image and avoiding legal and financial ramifications. This is where encrypted texting applications come into play.

In 2023, the necessity of adopting encrypted messaging applications for major enterprises cannot be stressed. With the growth of cyber dangers, including ransomware attacks and data breaches, organizations need to take every feasible action to secure their critical information. Encrypted messaging applications may give an extra degree of protection to guarantee that private information is kept secure from prying eyes.

Display of a preview on an encrypted business chat.

Encrypted messaging applications are meant to offer end-to-end encryption, guaranteeing that only the sender and recipient can read the messages. This degree of security makes it almost hard for anybody to intercept and understand the communications, including hackers, cybercriminals, and government authorities.

One big advantage of adopting encrypted messaging applications is that they may help organizations comply with data protection rules, such as the General Data Protection Regulation (GDPR) and the California Consumer Privacy Act (CCPA) (CCPA). These rules compel corporations to take efforts to secure personal data, and the usage of encrypted messaging applications may indicate that the company is taking this obligation seriously.

Secure from the start.

Common IM apps use standard encryption protocols when sending an attachment, whereas KLine offers an internal encryption of the attachment before you even hit “send”. Any attachement  you send or receive will be pre-encrypted.


Transport Layer Security (TLS), and its now-deprecated predecessor, Secure Sockets Layer (SSL),are cryptographic protocols designed to provide communications security over a computer network. Several versions of the protocols find widespread use in applications such as web browsing, email, instant messaging, and voice over IP (VoIP). Websites can use TLS to secure all communications between their servers and web browsers.

RSA 4096 BIT

RSA (Rivest–Shamir–Adleman) is one of the first public-key cryptosystems and is widely used for secure data transmission. In such a cryptosystem, the encryption key is public and it is different from the decryption key which is kept secret (private). In RSA, this asymmetry is based on the practical difficulty of the factorization of the product of two large prime numbers, the "factoring problem".


The Advanced Encryption Standard (AES)  is a specification for the encryption of electronic data established by the U.S. National Institute of Standards and Technology (NIST) in 2001. AES has been adopted by the U.S. government and is now used worldwide. It supersedes the Data Encryption Standard (DES), which was published in 1977. The algorithm described by AES is a  symmetric-key algorithm, meaning the same key is used for both encrypting and decrypting the data.


ZRTP is a cryptographic key-agreement protocol to negotiate the keys for encryption between two end points in a Voice over Internet Protocol (VoIP) phone telephony call based on the Real-time Transport Protocol. It uses Diffie–Hellman key exchange and the Secure Real-time Transport Protocol (SRTP) for encryption.

In the safest
of hands.

KLine smartphones are equipped with a VPN (Virtual Private Network) protection that can not be disabled. Your conversation will travel to the server through a tunnel that will make your IP anonymous, until you reach our switchboard, which in turn will travel back to the server and contact the sender of the conversation. The difference with common VPN services is that KLine will block any incoming or outgoing data connection (Youtube, Google, etc.), so as to completely prevent any unauthorised access/attacks by Trojans, crackers and entities.

A visual graph of how our encrypted flow works
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