Microsoft Service Basic Filtering Engine (BFE) is a service that manages firewall Internet Protocol Security (IPsec) policies and implements user mode filtering. Company BFE's full name is Guangzhou Beifayi Information Technology Co., Ltd. Its brand product service is "Export Easy", which is the first to provide full-process logistics services for cross-border e-commerce. In 2005, it established warehouses in the UK, the US and Australia to expand its cross-border B2C business. In 2007, it became one of the top ten sellers on eBay in China. In 2008, it won the former eBay China Research