Via Schneier, a report that FitBit trackers could, in theory, spread malware to users' computers:
The athletic-achievement-accumulating wearables are wide open on their Bluetooth ports, according to research by Fortinet. The attack is quick, and can spread to other computers to which an infected FitBit connects.
Attacks over Bluetooth require an attacker hacker to be within metres of a target device. This malware can be delivered 10 seconds after devices connect, making even fleeting proximity a problem. Testing the success of the hack takes about a minute, although it is unnecessary for the compromise.
"Fortinet first contacted us in March to report a low-severity issue unrelated to malicious software. Since that time we’ve maintained an open channel of communication with Fortinet. We have not seen any data to indicate that it is currently possible to use a tracker to distribute malware," [FitBit said].
The researcher has made it clear that this is a proof-of-concept attack, and not one that exists in the wild.
The final score from my FitBit challenge over the weekend was: friend, 33,800; me, 37,800. Yesterday I gave Parker 3 hours of walks and also walked home from dinner instead of taking public transit or a Divvy, which got me almost to 23,800 steps (and 17.7 km) for the day.
There was a cost. My feet hurt, Parker was lethargic this morning, and I ate too much. And this week it's not likely I'll get 10,000 steps in every day this week because I've got an all-day meeting Wednesday. Which is probably a good thing, according to my feet and my dog.
Following a friend's example, I got a FitBit this week. The same friend has challenged me for the weekend, getting 15,300 steps to my 14,000 yesterday, and going hiking this afternoon. Ah, but I have a dog, you see. And the weather is perfect. So far today I've walked 15,400 steps (11.6 km), almost all of it with Parker, and we're about to go out for another walk.
Here's walk #1, this morning, in Lincoln Park:
And walk #2, at lunchtime, down the Lakefront Path:
I got my 15,000-step badge on Friday, my first full day with the thing. Today I'm aiming for 20,000. My friend is too. This will be close, I'm guessing...