"The hack sends his voice commands to a proxy server, which in turn enables Siri to get a remote readout of the current temperature or to change your thermostat's climate settings," writes Gizmodo's Mario Aguilar.
"It's a pretty cool trick, but the point of the hack is to build a framework so that developers can experiment with extending Siri's functionality far beyond what Apple has officially sanctioned," Aguilar writes. "In theory, Siri could be used to control nearly any internet-connected device."
Go to "Siri Hacked to Control Your Thermostat or Almost Anything Else" to read the details.
For regular security news updates, follow eSecurityPlanet on Twitter: @eSecurityP.