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avatar for Sergey Puzankov

Sergey Puzankov

Positive Technologies
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Sergey was born in 1976. He graduated from Penza State University with a degree in automated data processing and management systems in 1998. Before joining Positive Technologies in 2012, he worked as a quality engineer at VimpelCom. Being a security expert in telecommunication systems at Positive Technologies, he researches signaling network security and participates in audits for mobile operators around the world. Sergey is also the general developer of the PT Telecom Vulnerability Scanner tool, member of the PT Telecom Attack Discovery development team, writes Positive Technologies annual reports on telecom security. He is part of the team that revealed vulnerable points in popular two-factor authentication schemes using texts and demonstrated how easy it is to compromise Facebook, WhatsApp, Telegram accounts, and a Bitcoin wallet. Apart from that, Sergey actively contributes the results of security research and discovered vulnerabilities to global organizations, such as GSMA and ITU.

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