(computing) Software that is installed without the user's knowledge or consent, often bundled with another product.
2003, William R. Cheswick, Steven M. Bellovin, Aviel D. Rubin, Firewalls and Internet security: repelling the wily hacker (page 241)They can acquire viruses, worms, foistware, and back doors.
2003, "data64", What browsers are vulnerable to drive-by download (on newsgroup alt.privacy.spyware)Is it possible to block foistware using Proxomitron or Privoxy filters ?
2004, "Sandi - Microsoft MVP", won't go to typed-in URL (on newsgroup microsoft.public.windows.inetexplorer.ie5.browserIt is essential to check for spyware/hijackware/foistware.
