BlackBerry files a patent infringement lawsuit against Nokia, demanding royalties on the Finnish company's mobile network products.
The company buys Endgame's US federal government services business, and VeriSign's iDefense Security Intelligence Services business.
The company buys InvestTech Systems Consulting - its fourth acquisition this year.
The software start-up was on the verge of listing in New York when it was bought for $3.7 billion.
The US Labour Department sues Oracle America, alleging it systematically paid its white, male employees more than other workers.
More than 60 acquisitions or investments took place over the festive season in the global ICT world.
Overall worldwide ICT spend was up a mere 0.3% in a trying year.
The company bought Austria-based Automic for €600 million.
The company spent $2.3 billion on the identity theft protection services provider.
The company bought ServiceMax, as well as two start-ups, Bit Stew Systems and Wise.io.
Windstream and EarthLink announced a $1.1 billion merger.
The company bought Level 3 Communications in yet another large consolidation within the telecoms sector.
The $47 billion deal is another consolidation move within the market and the largest deal in this sector.