Researchers recently discovered that the digital radios used by the FBI, Secret Service and Homeland Security can be jammed with a $30 children's toy.

"A GirlTech IMME, Mattel's pink instant-messaging device with a miniature keyboard that's marketed to pre-teen girls, can be used to disrupt sensitive radio communications used by every major federal law enforcement agency, a team of security researchers from the University of Pennsylvania is planning to announce tomorrow," writes CNET News' Declan McCullagh.

"Converting the GirlTech gadget into a jammer may be beyond the ability of a street criminal for now, but that won't last, says associate professor Matt Blaze, who co-authored the paper that will be presented ... at the USENIX Security symposium in San Francisco," McCullagh writes.

Go to "Security flaw founds in feds' digital radios" to read the details.

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