The Net (1995)

Genre: Action | Crime | Drama | Thriller
Tagline: Her driver's license. Her credit cards. Her bank accounts. Her identity.
Starring: Sandra Bullock, Jeremy Northam, Dennis Miller, and Diane Baker

Plot: Angela Bennett's a software engineer type who works from home and has few friends outside of cyberspace. Taking her first vacation in years she becomes embroiled in a web (sic) of computer espionage.

imdb
wikipedia