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I am connecting to the Internet with a modem. The tariff I have has a transfer cap; it is a limited package. My latest bill was five times more than what usually I get, even though this time I used it much less than usual.
I am sure somebody else is using my connection. How can I find out who it is?
2If you're using a modem directly connected to your computer, and don't have a wireless router or access point, ask your family members. – Daniel Beck – 2010-12-31T11:13:23.837
a cable/dsl modem or a telephone modem? – Nifle – 2010-12-31T11:40:42.517
Is your bill calculated by connect-time or transferred-bytes? – harrymc – 2010-12-31T13:59:44.740