The cell phone providers falsely advertised the security of their systems
December 11, 2008 (IDG News Service) Mobile service providers AT&T Inc. and T-Mobile have been banned from saying that their voice-mail systems are safe from sabotage after agreeing to permanent injunctions filed in a Los Angeles court.
The cell phone providers falsely advertised the security of their systems, according to the Los Angeles District Attorney's Office. During an investigation, "cell phones purchased by undercover investigators were easily hacked into, enabling the voice mail to be changed at will," the district attorney said in a statement today.
"Hacking into voice mail allowed messages to be changed or erased. Important information could be removed from the voice mail and phony information could be inserted," the district attorney said. "Imagine the havoc that could result."
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If you click to read the article, it goes on to tell details of how it was done via "SpoofcCard"...