iron box: n. [Unix/Internet] A special environment set up to
trap a cracker logging in over remote connections long enough to
be traced. May include a modified shell restricting the cracker's
movements in unobvious ways, and `bait' files designed to keep him
interested and logged on. See also back door, firewall machine,
Venus flytrap, and Clifford Stoll's account in "The Cuckoo's
Egg" of how he made and used one (see the Bibliography in
Appendix C). Compare padded cell.