Deals of the day-Mergers and acquisitions

Dec 23 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 1430 GMT on Tuesday:

ServiceNow <NOW.N> has agreed to buy cybersecurity startup Armis for $7.75 billion in cash, the companies said, as the enterprise software maker looks to attract new customers amid growing risks of cyberattacks.

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SiriusPoint subsidiary International Medical Group (IMG) will acquire Assist America, a provider of global emergency travel assistance services, the Bermuda-based (re)insurer said.

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Danish offshore wind developer Orsted <ORSTED.CO> has agreed to sell a 55% stake in its Greater Changhua 2 offshore wind farm in Taiwan to life insurance company Cathay in a deal worth around 5 billion Danish crowns ($788.74 million), it said.

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Private healthcare operator Akdital <AKT.CS> has agreed to buy Tunisia's Taoufik Hospitals Group for $90 million, the Moroccan company said.

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Azerbaijan's state energy company SOCAR signed a deal to buy a 870 MW gas-fired power plant in central Turkey from Gama Enerji for $225 million, the company said.

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Samsung Electronics <005930.KS> announced a $1.8 billion deal to acquire Germany's ZF Friedrichshafen's autonomous driving technology unit to combine it with its audio business and offer next-generation in-car platforms.

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The Australian Retirement Trust (ART) will acquire a near 20% stake in Scentre Group's iconic Westfield Sydney shopping mall for A$864 million ($575.68 million), the shopping centre owner said.

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