International Business Machines Corp missed Wall Street estimates for third-quarter revenue as software sales slow down and a boost from the launch of new server products begins to dry up, driving its shares down 4 percent on Tuesday.

* Changes come into force on Oct. 29 in Europe (Adds analyst comment, background)

International Business Machines Corp missed Wall Street estimates for third-quarter revenue on Tuesday, weighed down by slowing demand for its mainframe servers.

Netflix Inc added more subscribers than expected in the third quarter, as new seasons of original shows such as "Orange is The New Black" and "BoJack Horseman" pulled in users.

Public companies that fail to tighten their cyber security controls could be violating federal law, the U.S. Securities and Exchange Commission (SEC) said on Tuesday.

Dell Technologies Inc said on Tuesday it was sticking to its plans to go public by buying back its tracking stock, a day after activist investor Carl Icahn opposed the move.

U.S. tech giant Google will charge smartphone makers a licensing fee for using its popular Google Play app store and also allow them to use rival versions of its Android mobile operating system to comply with an EU antitrust order.

Telefonica Brasil SA has begun integrating its pay TV service with Netflix Inc's streaming platforms, Brazil's largest telecoms company said on Tuesday, in another step in its focus on high-end services.

India's central bank on Tuesday laid out guidelines that would allow for seamless payments between different mobile wallets, in a move that could further boost the use of digital payments in the country.

* Shares fall most since Google's September Renault contract win