Kirils Solovjovs

Owner -


Kirils Solovjovs is an IT policy activist, bug bounty hunter, and the most visible white-hat hacker in Latvia having discovered and responsibly disclosed or reported multiple security vulnerabilities in information systems of both national and international significance. He has extensive experience in social engineering, penetration testing, network flow analysis, reverse engineering, and the legal dimension. 

He has developed the jailbreak tool for Mikrotik RouterOS, as well as created e-Saeima, helping the Latvian Parliament become the first parliament in the world that is prepared for a fully remote legislative process.  

MITM on PSTN — novel methods for intercepting phone calls

In this talk the author proposes a novel method for intercepting phone calls over PSTN, including mobile networks. We’ll briefly each discuss the necessary components of the attack, including Caller ID spoofing, SS7, call diverts, and social engineering, and then join the all together to form the novel attack method. 

Two separate methods will be proposed. 

The author will provide a pre-recorded demo of each attack. 


2. SS7 features and attacks 

3. Relevant social engineering techniques 

4. Attack 1: Simultaneous ring attack 

5. Attack 2: Diversion attack 

6. Tactic 1: Interception of phone calls 

7. Tactic 2: Alteration of phone calls (content) 

8. Tactic 3: Alteration of phone calls (metadata) 

9. Proposed solutions 

Are you the next cyber security superstar?

If you are passionate about an information security topic or you have strong technical skills developing researches on your own, you should definitely Apply at Call for Papers. By submitting you will have the chance to showcase your work to +2000 attendees.

Other speakers joining this year

Hrishikesh Somchatwar

Masters Student Eurecom, Sophia Antipolis

Maksim Iavich

President of SCSA, Professor Caucasus University

Matei Badanoiu

Hacker Deloitte

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Sponsors & Partners

They help us make this conference possible.


Orange Romania is part of the Orange Group, one of the largest global telecommunications operators that connects hundreds of millions of customers worldwide. With over 11 million local customers and an annual turnover exceeding 1.5 billion euros, Orange Romania connects 1 in 2 Romanians and offers an extensive range of communication solutions for both individual and corporate customers, from basic connectivity services to complete mobile, fixed internet, TV packages, and complex IT&C solutions through Orange Business

Orange Romania is the number 1 operator in terms of network performance, and also holds nine consecutive Top Employer certifications, which confirm that Orange Romania, in addition to the remarkable products and services it offers, pays special attention to its employees and working environment. In the past 3 years Orange has launched two 5G Labs in Bucharest and Iasi, that aim to support researchers, startups and companies to test their 5G solutions in advance. 

In addition, Orange is a long-term supporter of the startup ecosystem through the Orange Fab accelerator program designed to support entrepreneurs in the development of innovative products and their distribution locally and internationally.

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