Sylvain Hajri

Expert in Open Source Intelligence, Founder and CEO – Epieos

Paris (France)

Sylvain Hajri

Expert in Open Source Intelligence, Founder and CEO – Epieos

Paris (France)

Sylvain Hajri

Expert in Open Source Intelligence, Founder and CEO – Epieos

Paris (France)

Sylvain Hajri, a former cybersecurity consultant, is now a leading expert in Open Source Intelligence (OSINT). 

In 2019, he co-founded OSINT-FR, a global association with over 17,000 members from diverse backgrounds such as journalists, law enforcements, lawyers, cyber security experts…

Sylvain shares his expertise through teaching and delivering conferences on OSINT at renowned institutions like Interpol, the Economic Warfare School, EM Lyon, and ILERI. He imparts his knowledge to students worldwide and also delivers presentations to professionals in the field.

In 2020, Sylvain further solidified his impact on the industry by founding epieos.com, an innovative OSINT tool designed to facilitate reverse searches of email and telephone addresses. This groundbreaking solution has played a pivotal role in resolving numerous anti-terrorist investigations, cases involving crimes against children, and combating cybercrime, underscoring Sylvain's commitment to leveraging technology for societal good.


Social Media Account(s) and Website(s):






The ultimate anti-stalking guide by Sylvain Hajri (in French)


Sylvain Hajri, a former cybersecurity consultant, is now a leading expert in Open Source Intelligence (OSINT). 

In 2019, he co-founded OSINT-FR, a global association with over 17,000 members from diverse backgrounds such as journalists, law enforcements, lawyers, cyber security experts…

Sylvain shares his expertise through teaching and delivering conferences on OSINT at renowned institutions like Interpol, the Economic Warfare School, EM Lyon, and ILERI. He imparts his knowledge to students worldwide and also delivers presentations to professionals in the field.

In 2020, Sylvain further solidified his impact on the industry by founding epieos.com, an innovative OSINT tool designed to facilitate reverse searches of email and telephone addresses. This groundbreaking solution has played a pivotal role in resolving numerous anti-terrorist investigations, cases involving crimes against children, and combating cybercrime, underscoring Sylvain's commitment to leveraging technology for societal good.


Social Media Account(s) and Website(s):






The ultimate anti-stalking guide by Sylvain Hajri (in French)


Sylvain Hajri, a former cybersecurity consultant, is now a leading expert in Open Source Intelligence (OSINT). 

In 2019, he co-founded OSINT-FR, a global association with over 17,000 members from diverse backgrounds such as journalists, law enforcements, lawyers, cyber security experts…

Sylvain shares his expertise through teaching and delivering conferences on OSINT at renowned institutions like Interpol, the Economic Warfare School, EM Lyon, and ILERI. He imparts his knowledge to students worldwide and also delivers presentations to professionals in the field.

In 2020, Sylvain further solidified his impact on the industry by founding epieos.com, an innovative OSINT tool designed to facilitate reverse searches of email and telephone addresses. This groundbreaking solution has played a pivotal role in resolving numerous anti-terrorist investigations, cases involving crimes against children, and combating cybercrime, underscoring Sylvain's commitment to leveraging technology for societal good.


Social Media Account(s) and Website(s):






The ultimate anti-stalking guide by Sylvain Hajri (in French)