At one internet provider, China Mobile Hong Kong, the disconnection — of a type known as a drop action — indicates direct involvement by the telecom company. “A drop action is a specifically configured element of a D.N.S. firewall environment” Mr. April said. “This is not something the owner could have configured, intentionally or accidentally.”China Mobile Hong Kong, an arm of China Mobile, the Chinese state-run company, declined to comment. Two others tested by the Times, SmarTone and Hutchison Telecommunications, which are controlled by local conglomerates, did not respond to emailed requests for comment.Users of PCCW, another locally …
