Tamer Sahin, is an Cybersecurity professional. Sahin worked on the philosophy of Ethical Hacking and concentrated on institutionalizing his professional life. He has consulted on various cases concerning Cybersecurity at both national and international levels. He used his talent as an Ethical Hacker, Cybersecurity Professional to detect the vulnerabilities of numerous computer systems. He developed defense strategies for some of the leading organizations in the private sector and public institutions.


In this context, he established one of the first commercial Cybersecurity Threat Intelligence Infrastructures (2011). This software and infrastructure have been used in Turk Telekom (Turkey’s largest telecom provider) and Isbank (Turkey’s largest bank) companies for many years. Tamer is one of the developers of “Mindwall IDS,” one of the first Intrusion Detection software developed for the USA and the global market. The Mindwall Intrusion Detection Software received early-stage investments from the USA and has been tested by such institutions as JPMorgan Chase Bank, Citibank, and AT&T. During the COVID-19 outbreak; Tamer Sahin works on a comprehensive Penetration Testing project carried out at a market-leading German company. This German-based company offers professional management and infrastructural services for the storage, distribution, and logistics stages of the Pfizer-BioNTech COVID-19 vaccine. With this work, he contributed to the safe delivery of the vaccine to the whole world.


In collaboration with world-renowned software developers like Microsoft, HP, Redhat, and AOL, Tamer Sahin discovered the vulnerabilities in the software they developed. Sahin enriched the world of information security by publishing more than 50 security advisories registered under his name. He also discovered the critical Zero Day security vulnerabilities in some software companies’ products; published the first security vulnerability announcement on Bugtraq and other global security platforms in 1999.


The New York Times journalist and US Cybersecurity and Infrastructure Security Agency (CISA) advisor Nicole Perlroth referred in her best seller book “This Is How They Tell Me the World Ends” to Tamer Sahin and described him as “the first person in the world who found and sold a Zero Day vulnerability.”


News about Sahin has been published in many written/visual media and discussed as lecture topics and projects at educational institutes such as the Istanbul Technical University, Bilkent University, Isik University, and Private Izmir American College. Sahin gives speeches/seminars and leads panels at universities and corporate companies worldwide to transfer his knowledge to others. He wrote about his experiences in the book “Hackers Mind” (original title “Hacker’in Akli,” published by Dogan Kitap.) The book made three editions and was on the bestseller list for a month. It is listed in the archives of the National Library of Congress Washington DC, Princeton University, Columbia University, Harvard University, The Library of Grand National Assembly of Turkey, Patrick Henry College, Salem College, and Birmingham-Southern College. Tamer Sahin was asked the final question in the Turkish broadcast of the world-famous quiz TV show “Who Wants to Be a Millionaire?”. Moreover, he has been the subject of the Republic of Turkey Ministry of National Education college achievement exam as a question.


His clients include world-class companies and government agencies like Philip Morris, United Biscuits, Nestlé, Hilton, Saint Gobain, Godiva, HDI Insurance, Heinemann, Deutsche Welthungerhilfe, Kässbohrer, CNN Turk, Turk Telekom, Isbank, Eurasia Tunnel, Government of the Philippines, The Grand National Assembly of Turkey, Central Bank of the Republic of Turkey, Savings Deposit Insurance Fund of Turkey, Borsa Istanbul, The Union of Chambers and Commodity Exchanges of Turkey, Radio and Television Supreme Council of Turkey.


Sahin has the OSCP, OSWP, OSWE, eCPTXv2, CRTE, CEH Practical, PenTest+, Security+ and CNSS professional Ethical Hacking/Cybersecurity certificates, which are accepted as the global industry standards. He is a Faculty of Economics, Department of International Relations graduate. He still works on providing solutions for the leading companies in the sector.