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Google to Buy Cybersecurity Firm Mandiant for $5.4 Billion

  • Internet-search giant to pay $23 a share in all-cash deal
  • Mandiant to boost Google’s business against Amazon, Microsoft
Google will purchase Mandiant for $23 a share in an all-cash deal.

Google will purchase Mandiant for $23 a share in an all-cash deal.

Photographer: Kirill Kudryavtsev/AFP/Getty Images

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Google agreed to purchase cybersecurity company Mandiant Inc. for $5.4 billion, adding internet security products that will bolster the technology giant’s cloud-computing business as it takes on larger rivals Amazon Web Services and Microsoft Corp. 

The acquisition, Google’s second-biggest ever, signals that the Alphabet Inc. company has stepped off the sidelines of large dealmaking despite intense regulatory scrutiny. As it seeks to expand its third-place cloud-infrastructure unit, which sells computing power and storage via the internet, buying Mandiant will give Google a fuller range of software tools to protect clients by responding quickly to online threats.