However, some experts worry that, without additional security measures, this type of tracking technology could inadvertently make users more vulnerable to spying.
"If you lose your laptop, a commercial service can tell you where it is right now," says Tadayoshi Kohno, an assistant professor of computer science at the University of Washington, in Seattle. "The issue, from a privacy perspective, is that this also means that someone who might break into or have access to the commercial service's database might be able to track you even before the laptop leaves your possession."
For details, see Technology Review.