Couple of months back I was testing Linux with different encryption levels and left the encryption level to WEP on my access point. I normally use WPA2 AES.
Yesterday, I was checking my broadband bill and was surprised to find out that they had charged me for downloading an extra 4 GB of data. I checked my usage online for the current month and it was already 8GB! This is despite the fact that I have been on holiday for ten days, and my normal usage involves casual browsing and downloading e-mails.
Furthermore, I never exceeded my download limit since I started with my ISP. My ISP also confirms that this is quite unusual and against my normal usage pattern. I have asked them to provide me some usage statistics but they can only give me the data that I already see on my account online.
I am quite certain that somebody hacked into my wireless lan. But I want to confirm this. The admin consoles (web interfaces) of my wireless access point and ADSL modem-router do not give me the option to see any logs from which I could extract usage stats.
I have read in some posts that one can access log files on routers and access points. If so, I just want to find out how to do that.
Can anyone help me with this? I'd really appreciate it.
My wireless access point is: EW-7206APg Wireless LAN Access Point Modem router: Speed Touch 510 Alcatel