Totally secure communication
for your peace of mind

  • Post-quantum
    ready
  • End-to-end
    encrypted
  • Zero
    knowledge
  • European Team
    and Technology

KvantPhone is an easy-to-use, quantum resistant
secure communication service

Designed for governmental organizations and businesses offering the following:

  • Totally secure calls and messages
  • Secure conference calling
  • Best practice cryptography
KvantPhone: a quantum resistant secure communication service
  • Convenience and discretion
  • Set-up in minutes
  • Regular security audits

No backdoor of any kind – guaranteed.

Backdoors often get hacked, allowing others to access and decrypt your communications.
Our team has made a huge effort to maximise the security of our users communications – click here to learn more.

Why to secure your communication

Secure communication is now a necessity

Widely available technologies and the new world of quantum computers
put calls and messages increasingly at risk from:

 

Surveillance
by hostile governments

Criminal
eavesdropping

Industrial
espionage

We created KvantPhone to secure and protect your communications.
It’s time to get back your privacy.

Secure communication is no longer optional

Widely available technologies and the new world of quantum computers put calls and messages increasingly at risk from:

 

Industrial
espionage

Criminal
eavesdropping

Surveillance
by hostile governments

We created KvantPhone to secure and protect your communications.

It’s time to get back your privacy.

Encrypted all the way
All around security
Secure administration
Quantum resistance

Maximum security without the need for any special hardware

KvantPhone’s best-practice methodology ensures maximum security for voice and instant message communications on your mobile phone.

By using KvantPhone, you can be sure that your calls or messages cannot be compromised, and that what you say or message remains inaccessible to third parties.

  • Secure peer-to-peer calling
  • Encrypted conference calls
  • Secure instant messaging
  • Secure file sending
  • End-to-end encryption
  • Secure authentication
  • Perfect forward secrecy
  • Quantum resistant
  • Intuitive admin interface
  • Cloud or on-site deployment
  • Secure user management
  • Organisation management features

Built-in quantum resistance in all features

“In light of quantum computing advancements, post-quantum cryptography and quantum resistant secure communication measures are gaining increased importance.”

To understand the details of KvantPhone’s post-quantum security, read the Security White Paper.

Fields of application – industry expertise

KvantPhone is designed to cover all your communication needs.
Here are some use cases why and how our customers use KvantPhone

  • Governmental Organisations

    “By adopting KvantPhone’s secure government-grade communication system, our teams can coordinate sensitive projects with full confidence.”

  • Military Organisations

    “KvantPhone provides a secure, dependable communication layer that our command staff can trust.”

  • Law Enforcement Agencies

    “In our work, confidentiality is not optional. Whether working in the field or from headquarters, our officers need a trusted communication system.”

  • Law firm

    “We have been seeking for years a reliable solution that secures not only our intra-team communications, but also voice communications with our clients.”

  • Energy trading

    “Our activity in the energy sector attracts a lot of unsolicited attention from competitors. A trade or contract for us can involve tens of millions of dollars.”

  • NGO

    “KvantPhone provides reliable and effective 24/7 customer support, which means that we can get assistance with the service worldwide any time, should we need it.”

Why our customers choose KvantPhone

Proven
comprehensive security

Secure admin interface
for user management

Fixed monthly subscription
No up-front investment

Advanced features
for large organizations

No special
hardware required

European technology
and developer team

Why our customers choose KvantPhone

Proven
comprehensive security

Secure admin interface
for user management

Fixed monthly subscription
No up-front investment

Advanced features
for large organizations

No special
hardware required

European technology
and developer team

Extraordinary balance of security and customer experience

 

  • No need for special hardware
  • Security does not affect usability & user experience
  • Independently reviewed – ongoing verifications
  • Comprehensive management features

 

We provide a service warranty!

(vs. “As is ” approach)

KvantPhone: extraordinary balance of security and customer experience

Extraordinary balance of security and customer experience

KvantPhone: extraordinary balance of security and customer experience
  • No need for special hardware
  • Security does not affect usability & user experience
  • Independently reviewed – ongoing verifications
  • Comprehensive management features

 

We provide a service warranty!

(vs. “As is ” approach)

Extraordinary balance of security and customer experience

 

  • No need for special hardware
  • Security does not affect usability & user experience
  • Independently reviewed – ongoing verifications
  • Comprehensive management features

 

We provide a service warranty!

(vs. “As is ” approach)

KvantPhone: extraordinary balance of security and customer experience
KvantPhone is built using best-practice cryptography and security protocols.

Independently Proven Security

  • KvantPhone is built using best-practice cryptography and security protocols including quantum-resistant methodologies.

  • The system is continuously updated. Independent third parties regularly review our software.

  • Smart system architecture means potential hackers can never eavesdrop, even if they gained access to KvantPhone’s source code. Not even KvantPhone’s developers can access your private data.

Our security and values explained.
Learn how KvantPhone protects you.

GDPR compliant
KvantPhone visual illustrating Our security and values explained. Learn how KvantPhone protects you.
KvantPhone visual illustrating Our security and values explained. Learn how KvantPhone protects you.
KvantPhone is built using best-practice cryptography and security protocols.

Independently Proven Security

  • KvantPhone is built using best-practice cryptography and security protocols including quantum-resistant methodologies.

  • The system is continuously updated. Independent third parties regularly review our software.

  • Smart system architecture means potential hackers can never eavesdrop, even if they gained access to KvantPhone’s source code. Not even KvantPhone’s developers can access your private data.

Our security and values explained.
Learn how KvantPhone protects you.

GDPR compliant
KvantPhone visual illustrating Our security and values explained. Learn how KvantPhone protects you.
KvantPhone visual illustrating Our security and values explained. Learn how KvantPhone protects you.
KvantPhone is built using best-practice cryptography and security protocols.

Independently Proven Security

  • KvantPhone is built using best-practice cryptography and security protocols including quantum-resistant methodologies.

  • The system is continuously updated. Independent third parties regularly review our software.

  • Smart system architecture means potential hackers can never eavesdrop, even if they gained access to KvantPhone’s source code. Not even KvantPhone’s developers can access your private data.

Our security and values explained.
Learn how KvantPhone protects you.

GDPR compliant
KvantPhone visual illustrating Our security and values explained. Learn how KvantPhone protects you.
KvantPhone visual illustrating Our security and values explained. Learn how KvantPhone protects you.

Ready to make your communication secure?

Guard against eavesdroppers with KvantPhone’s maximally reliable and secure communication service.