Thread starter, yes, your telephone and internet line can be
tapped (old fashioned method) is by connecting your line to the
culprit's computer
any traffic or msg going through this line goes into the
culprit's line as well. he can also "borrow" your line as well.
The downside is the culprit must be physically close to the line
and if not alert enough, can get caught on the spot
there are other more advanced methods of hacking, though.
especially internet