Find useful information and documents about our service,
see how CryptTalk compares and read how our customers benefit from using CryptTalk.

About our services and security

Why trust CryptTalk?
Our security philosophy

Learn more about our
security philosophy.

Our security philosophy

CryptTalk Security
White Paper

Discover how CryptTalk makes your communication completely secure.

Download White Paper (PDF)

Proven Security
NCC review details

Learn about the CryptTalk Mobile
Application Security Assessment
by NCC Group.

Assessment details


See CryptTalk's main features.

Open brochure (PDF)

Markets &
Case Studies

See how our customers
from various sectors
benefit from using CryptTalk.

Read Case Studies

Support Center &
Frequently Asked Questions

Got any questions? Go to our Support Center for assistance or to submit a question.

Open Help Center

Press resources and some media coverage

Our Story
Interview with the founders

Szabolcs Kun and Attila Megyeri, co-founders, tell their story.

Read article

Why we do this?
A deeper insight about us

We believe that your personal privacy matters a great deal.

Read article

CryptTalk video spot

A short introduction to CryptTalk.

Watch video

CryptTalk boosted
by encryption controversy

"This is a solution with no back door, without any special hardware
and, very importantly, even we, the vendors,
cannot decrypt calls made using CryptTalk"

Read article

But, aside from the marketing
spiel, how good is CryptTalk?

"Indeed, few companies do not have back doors. CryptTalk, thus, only has two or three competitors in the very secure segment."

Read article

CryptTalk for Journalists
(Interview by GEN)

We are committed to support investigative journalism and the protection of free speech.

Read the interview

For specific inquiries, please email us at:

Reports and articles about surveillance

We have collected you useful articles and reports about surveillance and eavesdropping.

Vodafone outlines government
efforts to censor telecoms

Vodafone Law Enforcement Disclosure
report Country-by-country legal annexe.

Read report

Telenor's report
authority requests

Authority requests for access to electronic
communication (country data).

Read report

Bugged, Tracked, Hacked
A 60 Minutes Special Investigation

German hackers intercept and record mobile phone conversations between a 60 Minutes reporter in Europe and an Independent Australian Senator, Nick Xenophon, in Australia's Parliament House.

Watch the report

FORBES on governmental

"Statistics on how often your phone company hands data over to law enforcement."

Read article

Keys Under Doormats
(MIT Report)

Mandating insecurity by requiring
government access to all data and

Read report

Further useful
articles and reports

See our collection of articles
on interception and surveillance.

Coming soon!

For our users

User's Manual

For individual users subscribing
through the App Store℠.

Open manual

CryptTalk PRO
User's Manual

For business users
with corporate subscription.

Open manual


Open page

Stay secure!
Practical advice

Open page

Legal aspects
of our service

Open page

CryptTalk PRO
Master Service Agreement

Download (PDF)