The brand name for AVG Technologies' Security Software is AVG, which comes from their first product, Anti-Virus Guard. AVG Technologies is a privately held Czech company formed in 1991 by Jan Gritzbach and Tomas Hofer. In early September 2005, a large stake in the company was bought by Intel Corporation. On April 19, 2006, ewido Networks became a part of the AVG Technologies group.
On November 6, 2006, Microsoft announced that AVG Security products would be available directly from the Windows Security Center in Windows Vista. Since June 7, 2006, the AVG software has also been used as an optional component of GFI Mail Security, produced by GFI Software. On December 5, 2007, AVG Technologies announced the acquisition of Exploit Prevention Labs, developer of the LinkScanner safe surfing technology. On February 8, 2008, Grisoft announced that they would change the company name from Grisoft to AVG Technologies. This change was made to increase the effectiveness of their marketing activities.