Ilfak Guilfanov (Russian: Ильфак Исмагилович Гильфанов, born 12 november 1966) is a Russian software developer, computer security researcher and blogger. He became well known when he issued a free hotfix for the Windows Metafile vulnerability on 31 December 2005.[1] His unofficial patch was favorably reviewed and widely publicized because no official patch was initially available from Microsoft.[2] Microsoft released an official patch on 5 January 2006.
Guilfanov was born in a small village in the Tatarstan Region of Russia in a Volga Tatar family.
He graduated from Moscow State University in 1987 with a Bachelor of Science in Mathematics.
He is the systems architect and main developer for IDA Pro[3], which is Hex-Rays' commercial version of the Interactive Disassembler Guilfanov created. A freeware version of this reverse engineering tool is also available.
Actually, he lives in Liège, Belgium.
He worked for DataRescue[4].
In 2005, Guilfanov founded Hex-Rays[5]. In 2020, the income of the company has eclipsed the mark of 20 million euros per year[6].
In 2022, a consortium of investors Smartfin, SFPIM and SRIW acquired Hex-Rays[7] for 81 million euros[8].