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A massive database storing tens of millions of SMS text messages, most of which were sent by businesses to potential customers, has been found online.

The database is run by TrueDialog, a business SMS provider for businesses and higher education providers, which lets companies, colleges, and universities send bulk text messages to their customers and students.

The database stored years of sent and received text messages from its customers and processed by TrueDialog.

The database contained information about university finance applications, marketing messages from businesses with discount codes, and job alerts, among other things.

One table alone had tens of millions of messages, many of which were message recipients trying to opt-out of receiving text messages.