Internet giant Yahoo now believes a 2013 security breach exposed all 3bn of its users at the time.

Quarterly results from Google owner Alphabet and Facebook provided fresh evidence this week that the digital advertising market is effectively a duopoly, a dynamic that has deep implications for two of Silicon Valley’s titans.

A student has admitted carrying out a string of high-profile cyber attacks on the websites of several multi-national firms.

The IDA has said it is assessing the implications of job cuts at Verizon on its Irish workforce.

Seeking out new revenues, big phone firms at the Mobile World Congress are trying to loosen Google, Amazon and Facebook’s grip, write Eric Auchard and Sophie Sassard.

Verizon Communications has said it would buy Yahoo’s core business for $4.48bn (€4.22bn), lowering its original offer by $350m in the wake of two massive cyber attacks at the internet company.

Stocks around the world continued their march higher on Monday, and US indexes again hit new highs.

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Yahoo have revealed that the information of 1 billion users has been compromised following a breach in 2013, making it the largest data breach ever.

Samsung will issue a global recall of the Galaxy Note 7 smartphone as soon as this weekend after its investigation into explosion claims found batteries were at fault, according to South Korea's Yonhap News.

Verizon Communications agreed to buy Yahoo’s web assets for $4.83bn (€4.39bn), ending the company’s two-decade run as an independent business that took it from Stanford University startup at the dawn of the internet age to also-ran behind nimbler online rivals such as Google and Facebook.

US telecommunications rivals Verizon and AT&T are set to go through to the third and final round of bidding in the auction for Yahoo’s core internet assets.

Companies should encrypt their data and move away from using paper documents in order to protect valuable information and thwart the continuing threat posed by hackers and criminals.

Yahoo has formed a committee of independent directors to explore strategic alternatives, alongside its plan to revamp and spin off its internet business.

Operating profits more than doubled, to €7.1m, at Irish software firm Openet Telecom last year, new accounts show.

Pure Telecom, the Irish-owned fixed-line, broadband and cloud telecom services provider, is to add 30 jobs over the next 18 months, as part of its expansion across Munster.

Samsung Electronics has unveiled a new Galaxy Note phablet and a larger version of its curved-screen S6 edge smartphone, marking a fresh bid by the South Korean company to revive momentum in its handset business.

US telecommunications giant Verizon has confirmed its intention to buy AOL for $4.4bn (€3.9bn), turning the biggest US wireless carrier into a leading provider of content and video for the web and mobile phones.

Nokia is in talks to buy smaller telecom equipment maker Alcatel-Lucent, a deal combining the industry’s two weakest players that is backed by the French government but could pose challenges in cutting costs.

The body that regulates internet addresses is investigating if it can crack down on a Canadian company accused of using the new .sucks domain name to extract exorbitant sums from celebrities and firms seeking to protect their public brands.

USA: A Pennsylvania man recovering from surgery has won $7m (€6.4m) off a lottery ticket tucked into his get-well-soon card.

Britain’s electronic spying agency, in co-operation with the US National Security Agency, hacked into the networks of a Dutch company to steal codes that allow both governments to seamlessly eavesdrop on mobile phones worldwide, according to documents given to journalists by Edward Snowden.

US companies are forecast to cross the Atlantic to raise funds in euro at the fastest pace in at least eight years as borrowing costs in Europe fall below dollar rates by the most in a decade.

US stocks closed higher on Monday, keeping major indexes at record levels.

Chinese censors have blocked access to several popular websites as they target content delivery networks that serve much of the internet, according to a US internet service company.

Irish software firm Openet last year returned to operating profit in spite of a dip in revenues to €95.44m.

One hundred new high-skill jobs are to be created in Co Westmeath.

Amazon CEO Jeff Bezos has unveiled a new smartphone called Fire Phone.

Mobile phone giant Vodafone has reported a “mixed” year after its annual earnings fell in the face of continued pressure on European revenues.

Better results from retailers and demand for telecommunications shares market helped push the stock market to a small gain yesterday.

A 71-year-old woman is believed to have suffered about 1,000 stings in Southern California after being attacked by a swarm of killer bees that covered her entire body.

Shareholders in Vodafone say they support chief executive Vittorio Colao’s plan to rebuild the company with pricey European broadband assets, even though it could complicate a lucrative bid from AT&T.

Netflix has agreed to pay for more-direct access to Comcast’s broadband network to improve speed and reliability for its video-streaming customers, according to sources.

Vodafone Group Plc completed the biggest sale of the past decade yesterday, leaving the wireless carrier about half the size it was, as chief executive Vittorio Colao embarks on a new expansion strategy.

Vodafone shareholders have voted overwhelmingly in favour of a bumper 84 billion US dollar (€61bn) payout from the sale of the company’s stake in US mobile phone operator Verizon Wireless.

Speculation linking mobile phone giant Vodafone to a £60 billion takeover swoop from AT&T was shot down by the American firm today.