Researchers could collect enough information to get the databases storing the data to execute commands.
People who use wearable gadgets to monitor their health or activity can be tracked with only $70 (£40) of hardware, research suggests.
The work, carried out by security firm Symantec, used a Raspberry Pi computer to grab data broadcast by the gadgets.
The snooping Pi was taken to parks and sporting events where it was able to pick out individuals in the crowds.
The work, carried out by security firm Symantec, used a Raspberry Pi computer to grab data broadcast by the gadgets.
The snooping Pi was taken to parks and sporting events where it was able to pick out individuals in the crowds.
In addition, the research team looked at the apps associated with some activity monitors or which use a smartphone to gather data. About 20% of the apps Symantec looked at did nothing to obfuscate data being sent across the net even though it contained important ID information, such as name, passwords and birth date.
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