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Dell to offload RSA security unit.

The computer giant announced Tuesday that it will sell RSA to a coalition led by Symphony Technology Group in a $2.075 billion all-cash transaction.

RSA, which is perhaps best known for its hardware security tokens and namesake conference, helps its more than 12,500 customers detect, investigate and respond to cybersecurity threats, according to the company. The sale is aimed at simplifying Dell's business and product portfolio, the company's Chief Operating Officer Jeff Clarke said in a blog post.

The sale is expected to close in the next six to nine months, the company said.

Martin Cooper with his original DynaTAC cell phone.

Photo: Ted Soqui/Getty Images

Martin Cooper helped invent one of the most consequential and successful products in history: the cell phone. And almost five decades after he made the first public cell phone call, on a 2-pound brick of a device called the DynaTAC, he's written a book about his career called "Cutting the Cord: The Cell Phone Has Transformed Humanity." In it he tells the story of the cell phone's invention, and looks at how it has changed the world and will continue to do so.

Cooper came on the Source Code Podcast to talk about his time at Motorola, the process of designing the first-ever cell phone, whether today's tech giants are monopolies and why he's bullish on the future of AI.

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David Pierce

David Pierce ( @pierce) is Protocol's editor at large. Prior to joining Protocol, he was a columnist at The Wall Street Journal, a senior writer with Wired, and deputy editor at The Verge. He owns all the phones.

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