Spam

Where Text-Message Spam Comes From


Text-message spam rose 45 percent, to 4.5 billion messages, in 2011. Cloudmark, a security company, analyzed spam texts and found that most originate on the coasts. It’s likely the senders live there, do business there, or both, according to the company.

Data: Cloudmark
Robertson is a reporter for Bloomberg News in San Francisco.

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