Stories by Reuters

Twitter tumbles on concerns about hacking activity

Twitter shares fell almost 7 percent on Monday after the company said it was investigating unusual traffic that might be from state-sponsored hackers and, in what appeared to be an unrelated issue, a security firm said hackers used the platform to try to steal user data.

Google+ shutdown accelerated after new privacy snafu

Google will shut down its Google+ social media service in April, four months ahead of schedule, after finding a software flaw for the second time this year that allowed partner apps to access its users' private data.

Top Huawei executive arrested on US request

The daughter of Huawei's founder, a top executive at the Chinese technology giant, was arrested in Canada and faces extradition to the United States, stirring up fears it could reignite a Sino-U.S. trade row and roiling global stock markets.

Up to 500 million customers affected by Marriott breach

Marriott International has revealed hackers accessed up to 500 million customer records in its Starwood Hotels reservation system in an attack that began four years ago, exposing data including passport numbers and payment cards.

Dell.com resets all passwords after breach

Dell has revealed it reset passwords for all accounts on its Dell.com online electronics store on Nov. 14, five days after it discovered and stopped hackers who were attempting to steal customer data.

Google workers push to stop censored Chinese search project

More than 200 employees comprising engineers, designers and managers at Google published an open letter on Tuesday, demanding that the company end development of a censored search engine for Chinese users, escalating earlier protests against the secretive project.