(Reuters) - International Business Machines Corp reported full-year profit forecast that missed Wall Street expectations, sending the shares of the company down 6 percent in extended trading.

WASHINGTON (Reuters) - The U.S. Internal Revenue Service's computers suffered a technical problem that prevented some taxpayers from filing or paying their 2017 returns on Tuesday ahead of a midnight deadline.

(Reuters) - An activist hedge fund that wants Facebook to set up a risk oversight committee asked fellow shareholders on Tuesday to back the proposal, highlighting investor concerns over the company's handling of controversies such as the recent data privacy row.

MOSCOW (Reuters) - Russia's state communications regulator on Tuesday said it had blocked IP addresses owned by Google and Amazon, saying they were being used by the Telegram messaging service which Moscow moved to ban this week.

NEW YORK (Reuters) - Cambridge Analytica was planning to raise money by issuing a new type of digital currency before it became embroiled in a scandal surrounding the misuse of Facebook Inc personal data, sources familiar with the matter told Reuters on Tuesday.

(Reuters) - New York Attorney General Eric Schneiderman on Tuesday sought information from 13 cryptocurrency trading platforms, including Coinbase Inc and Gemini Trust, about their operations such as fee structures and safety measures to protect customer accounts.

LONDON (Reuters) - Some of Europe's biggest venture capital firms are buying into sales of new virtual coins or asking their investors to give them the freedom to do so, in a sign of mainstream investor backing for the booming but controversial crowd-funding tool.

SAN FRANCISCO (Reuters) - Shares of Twitter Inc surged nearly 11 percent on Tuesday and were on track for their best session in two months after Morgan Stanley upgraded its recommendation on the social network to "equal-weight" from "underweight".

WASHINGTON (Reuters) - The Federal Communications Commission voted unanimously on Tuesday to advance new rules barring a U.S. government program from purchasing equipment or services from companies posing a security threat to the country's communications networks.

WASHINGTON (Reuters) - China's Huawei Technologies Co Ltd [HWT.UL], viewed with suspicion in congress as a potential threat to U.S. national security, has laid off five employees at its Washington office and slashed lobbying expenditures, according to sources familiar with the matter and government ...

DETROIT (Reuters) - Volkswagen AG unit Electrify America said on Tuesday it has selected several suppliers, including Switzerland's ABB LtdS> and South Korea's Signet EV Inc, to install more than 2,000 high-speed electric vehicle chargers in the United States by the end of 2019.

ZURICH (Reuters) - ABB said on Tuesday it received an order from Volkswagen unit Electrify America to provide high power electric vehicle chargers across the United States, the biggest U.S. project to date in that field.

WASHINGTON (Reuters) - The Federal Communications Commission voted unanimously Tuesday to advance new rules to bar the use of funds from a government program to purchase equipment or services from companies that pose a security threat to U.S. communications networks and is considering additional ste...

MOSCOW (Reuters) - Russia's drive to build a large power-generating turbine to lessen its dependence on Western technology has suffered a major set-back after a prototype broke beyond repair, two sources familiar with the project told Reuters.

SAN FRANCISCO (Reuters) - Microsoft, Facebook and more than 30 other global technology companies on Tuesday announced a joint pledge not to assist any government in offensive cyber attacks.

WASHINGTON (Reuters) - The U.S. Supreme Court on Tuesday dismissed Microsoft Corp's privacy fight with the Justice Department over whether prosecutors can force technology companies to hand over data stored overseas after Congress passed legislation that resolved the dispute.

STRASBOURG (Reuters) - Identity cards held by EU citizens will be required to include digital images of the holder's fingerprints as part of a crackdown on fraudulent documents used by criminals and extremists, the European Commission proposed on Tuesday.

LONDON (Reuters) - A prominent campaigner to leave the European Union, Arron Banks, denied allegations on Tuesday by a former employee of political consultancy Cambridge Analytica that he had misused personal data for political purposes.

BRUSSELS (Reuters) - Technology companies such as Google, Microsoft and Facebook will be forced to hand over users' data to European law enforcement officials even when it is stored on servers outside the bloc, under a law proposed by the EU on Tuesday.

(Reuters) - Tesla Inc shares fell as much as 2 percent in premarket trading on Tuesday, a temporary halt in production of its Model 3 sedan adding to nerves about the electric car maker's consistent failure to keep its promises on vehicle output.

MADRID (Reuters) - Robots will eventually replace human workers in the retail industry, the chief executive of Chinese e-commerce company JD.com predicted on Tuesday.

JAKARTA (Reuters) - A Facebook official apologised to Indonesian members of parliament on Tuesday during a five-hour grilling at a public hearing on issues ranging from the misuse of personal data to the oversight of content by the social media giant.

SAN FRANCISCO (Reuters) - Digital maps startup Mapbox Inc told Reuters on Tuesday that it has hired a lead product manager from the local search unit of Alphabet Inc's Google to serve as head of product for maps and search.

PARIS (Reuters) - France's Vivendi is asking Telecom Italia (TIM) investors to trust its long-term strategy ahead of a leadership showdown against activist fund Elliott.

SAO PAULO (Reuters) - Amazon.com Inc is in talks with Brazilian airline Azul SA on shipping goods in the country, two sources with knowledge of the matter told Reuters, in the latest sign of the retailer's big plans in Latin America's largest economy.

PARIS (Reuters) - French media group Vivendi defended its strategy for Telecom Italia (TIM) in a document released on Tuesday, insisting it is best placed as the number one shareholder to provide stability for the former monopoly.

MOSCOW (Reuters) - Russia's state telecommunications regulator said on Tuesday it had sent requests to Google and Apple asking them to remove the Telegram messenger service from their application stores, the Interfax news agency reported.

SEOUL (Reuters) - Six months after South Korea banned the issuance of new cryptocurrencies, they are starting to creep back into the country by using overseas listings for local trading.

SHANGHAI/BEIJING (Reuters) - A move by the United States to ban American firms selling components to the Chinese telecom equipment maker ZTE Corp will also hit a target closer to home: Qualcomm Inc, a U.S. company that is a major supplier of chips for ZTE's phones.

(Reuters) - Uber's robust growth in Brazil, its biggest market outside the United States, has given the ride-hailing app a far stronger position than it had in Asian markets that it recently exited, a senior executive said on a visit to South America.