CallProtector – Secured Encrypted Voice Calls Hopefully…

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Ed: Todays pitch is a fundamentally great idea, however the thing that would scare the hell out of me if I were one of the target customers is the fact that you just can’t know if a provider and their app really has the security smarts they claim.

While this level of security in the hands of individuals may be used for nefarious business, there is also a legitimate use case to evade malicious Nation States who would seek to repress reporters and activists.

I guess what qualifies as a Malicious Nation State is actually just a matter of perspective, all States are malicious to someone.

Encrypting voice calls is in fact the ultimate mission critical security application for a reporter or political activist, if you get this wrong a knock at the door will come in the middle of the night.

Normally the first rule in security is don’t let anyone know anything about how your security strategy, technology and end points, however for marketing purposes this team has chosen to publicise the encryption and security methods they use.

I guess keeping quiet about their security stack isn’t going to help them in the case of a persistent attack from a nation state however I find it a little disturbing that they think this is a good idea to be very specific about their methods.

I note a few weird things about the company, it has both an English and German site, but is located in Monkok in Hong Kong and interesting location given the proximity to China and the fact that there is no constitutional or rule of law certainties.

Also the English is not fantastic on the page, there are spelling and grammar errors.


It gets a little more disturbing, they list the use of 521 bit encryption (this is an odd/strange number, you would normally expect a multiple of 8 ie 512 bit) which as far as I could tell was not one of the listed key sizes on the Wikipedia entry for AES256.

Not to say that this isn’t a legitimate company and product, but I have to say that if the web copy is sloppy or factually incorrect there is no way I would trust my life to these guys and their security.


Startup Name CallProtector
What problem are you solving? Companies/journalists can communicate worldwide over their phones without being scared of someone listening to them.
What is your solution? We are encrypting your voice data with an algorithm for top secret military communication. Be safe on iOS and Android.
Target Market Companies, journalists
How will you make money? Subscriptions/Advertisement
Tell us about the market & founders, why is this a great opportunity? We are a young team of 2 developers from Austria who are normally developing enterprise applications for big companies. While developing for them we often got asked how to securely communicate on their iOS or Android devices. There was no good solution so we decided to develop one and 3 years later we are here.
Founders Names Michael Lukas
What type of funding has the company received? Bootstrap
Twitter Handle @CallProtector
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