Hacker News Reader

I would use it to detect friends that come over to my place and load their taste in music on my media server.

Can do the same thing a little more simply by sniffing phone 802.11x mac addresses and/or bluetooth identifiers.

Can also modify the idea a bit to create an "unknown person" warning system if it detects unauthorized device IDs broadcasting within range.

> Can do the same thing a little more simply by sniffing phone 802.11x mac addresses and/or bluetooth identifiers.

I believe the iPhone now randomizes MAC addresses when probing.

No, not in practicality. It only changes the MAC when the iPhone is asleep. Since apps have so much background functionality, the phones almost never sleep.

Reply on news.ycombinator.com