Bitdefender is a Romanian cybersecurity and anti-virus software company. It was founded in 2001 by Florin Talpeş who is currently the CEO. Bitdefender develops and sells anti-virus software, internet security software, endpoint security software, and other cybersecurity products and services.
As of 2017, the software has about 500 million users worldwide. As of March 2017, Bitdefender ranks third in the global ranking of Windows anti-malware application vendors by revenue.