The Theft Problem

There are brief discussions of the theft problem here:

Hardware Ideas#The colour of the case,

Case design#The Theft Problem,

Case design#Blank field for personalizing indented in the case

How can we make sure that adults do not steal these laptops and start to use them for nefarious purposes?

Make them different to public available comercial products

If the olpc laptop has different

• color
• shape
• size of motherboard

it can be easily identified as a olpc laptop.

Serial Number

The MAC Adress can be used as a serial number. If a laptop is stolen this number will be written to a database. There can be a USB Stick with a small linux and all serial numbers of stolen laptops. If you boot from this USB stick it should show if the laptop is stolen. (MAC adresses can be changed temporarily by software)

RFID Access Wristband

I would like to propose a different approach than using a different color set for the casing, or using the MAC address. I do agree with the previous posts that the theft problem is a serious burden of this project that must not be underestimated.

I do think that the color set of the casing should not be changed, even if these machines were to be distributed to first world countries (Which isn't planned yet, I know). In my view, a prime appeal of these machines are actually the bright and colorful casings they have. Striping them of these shells would transform them in some way to a "usual gadget" which it shouldn't be. These machines don't deserve to be "usual", they deserve better. I think these colors are actually cool.

Let me now move on to the theft problem. I would propose, that every child who gets such a notebook, would also be given a wristband. This wristband should be equally colorful as the laptop, so that the child could better find it, should it be lost. The wristband, which could be made of nylon should include an RFID chip. When the laptop is started it should first scan for a specific RFID signal. If it is detected, then the laptop should start as normal. If not, then the laptop should be automatically shut down, thus making it worthless for anyone who isn't allowed to use it, like thieves or their customers. The "Wristband-Login" should well secured, so that it would even with first world technologies and knowledge be difficult to crack it. Over time, thieves would finally come to the conclusion, that it doesn't make sense to steal these machines from schools, or from whereever the children store them. The "Wristband-Login" would also prevent people from using the machine without the childs permission, thus protecting its privacy, and ultimately the privacy of its contacts in the email or instant messenger program. So, what happens if the child would lose the wristband you might ask? Well, I strongly assume that in every region, where these laptops are to be delivered, there would be some sort of a central support station, to where these kids could go, if ever there was a problem with the machine. These central support stations should also have replacement wristbands on stock and a "Wristband RFID writer", so that they could recreate the wristband for the child. Mind you, these RFID connections should also be encrypted, so that the children can't be tracked.

To sum up, the RFID Wristband would have following advantages and disadvantages:

• + The laptop can only be started with the specifically for this machine made RFID wristband in close distance, thus making it worthless for thieves, their customers or any person who wants to access the data on the child's notebook.
• + RFID Wristbands are cheap to make and easy to replace.
• + Large numbers of notebooks could be stored at school without fearing that they were stolen, because twenty laptops would require the wristbands of twenty children which are almost impossible to get.
• + There is no need for a login password, which means that you won't encounter the problems connected to them as well.

• - RFID wristbands could be tracked, if they are not encrypted.
• - If there wasn't a central support station, it would be hard to get a wristband replacement, should it be lost.

All in all I think the advantages are considerably greater than the disadvantages. It would also greatly increase the privacy of the child and the people in its contact lists.