Not long ago, my Wife bought a 1994 Chev. Lumina
4 door sedan. I found water in the spare tire compartment
below the trunk floor.
I found out that the water was coming in around the
wire harness (tail lights). I used a silicon sealer around
the grommet where the wires enter the back of the trunk.
I wish GM had a better technique to enter the wires.
Before you type your password, credit card number, etc.,
be sure there is no active key logger (spyware) in your PC.