Police track phones with silent SMS

In Europe security services have been sending thousands of Silent SMS messages, allowing them to locate and track phones without the recipient's knowledge. A legal vacuum exists around the technique. Owni.eu reports via @jranck.

Also known as Flash-SMS, the Silent SMS uses an invisible return signal, or “ping”. Developers from the Silent Services company, who created some of the first software for sending this type of SMS, explain:

The Silent SMS allows the user to send a message to another mobile without the knowledge of the recipient mobile’s owner. The message is rejected by the recipient mobile, and leaves no trace. In return, the sender gets a message from a mobile operator confirming that the Silent SMS has been received.

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Previously: - Silent SMS track terrorists

emily | 5:41 PM | Technology |
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