International corporations such as Google, Facebook, Microsoft, Myspace, Shutterstock, and Yahoo! have voluntarily censored content for Chinese markets in order to be allowed to do business in the country. In October 2008, Canadian research group Citizen Lab released a new report saying TOM's Chinese-language Skype software filtered sensitive words and then logged these, with users' information to a file on computer servers which were insecure. In September 2007, activists in China had already warned about the possibility that TOM's versions have or will have more trojan horse capability. Skype president Josh Silverman said it was "common knowledge" that Tom Online had "established procedures to meet local laws and regulations ... to monitor and block instant messages containing certain words deemed offensive by the Chinese authorities."