independent reviews and verification of its software's source code, and announcing that it would migrate some of its core infrastructure for foreign customers from Russia to Switzerland. In November 2020 Kaspersky finished relocating the data of its customers from Russia to Switzerland. The company has also opened multiple transparency centers in Switzerland, Brazil, Canada, Spain and Malaysia which allow state agencies, government experts and regulators to review its source code. History The first version of Kaspersky Lab's antivirus software was developed by Eugene Kaspersky in 1989 in response to the Cascade Virus. Early versions had just 40 virus definitions and were mostly distributed to friends and family members. Kaspersky continued developing the software at KAMI, resulting in the AntiViral Toolkit Pro (AVP) product released in 1992. It was popularized in 1994 after a competitive analysis by Hamburg University gave his software first place. In 1997, Eugene Kaspersky, his wife Natalya Kaspersky, and Alexey De-Monderik left KAMI to form Kaspersky Lab, and to continue developing the antivirus product, then called AVP. The product was renamed Kaspersky Anti-Virus after an American company registered the AVP trademark in the US. In 1998, a Taiwanese student released a virus called CIH. During the first three weeks of the outbreak, Kaspersky Lab's AVP was the only software at the time able to remove it. This increased demand and led to deals with antivirus companies in Japan, Finland and Germany to integrate AVP into their software. According to WIRED, Kaspersky's software was "advanced for the time". For example, it was the first software to monitor viruses in an isolated quarantine. The company's revenue grew 280 percent from 1998 to 2000, with about 60 percent of its revenue coming from foreign sales. Natalya worked to broker deals abroad and localize the software. It opened offices in the UK, Poland, Holland and China. It later expanded to Germany, France, the US and Japan. By 2000, the company had 65 employees and sales in more than 40 countries. Kaspersky opened new offices in South East Asia and the Middle East in 2008 and in South Africa in 2009. It also expanded in India, the Middle East and Africa in 2010. In 2009, retail sales of Kaspersky Lab's antivirus products reached almost 4.5 million copies per year. In 2011, General Atlantic bought a 20 percent share of Kaspersky Lab for $200 million, with the expectation of helping the company go