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Mobile phone spam is any unsolicited message sent in bulk that targets a mobile phone. Mobile phone spam delivers spam messages as a text via SMS.
Also known as cell phone spam, SMS spam, text spam and m-spam.
Generally speaking, mobile phone spam/SMS spam is less prevalent than email spam. It is relevant in two ways: First off, depending on the cell phone plan, the user might need to pay additional fees for text messages received. Second, the tools to filter SMS spam are more limited on a smartphone as compared to an email client.