BIOMETRI

      another weapon in the fight against computer crimes is biometric, or the degisting of biological characteristics, these technologies work by sampling “unique” biological features, such as the voice, the pattern of blood vessels in the reting or fingerprints.

FIREWALL

                Rolf Oppliger, describes as firewall as a “blockade “between an internal privately owned network (such an internet) that is believed to be secure and an external network, such as Internet, which is not assumed to be secure. The metaphor of blockade is perhaps useful, but others have suggested that a firewall can be more accurately to a “moat around a castle”.

Firewall technology consists of a set of mechanism that are embedded in hardware, software or both. This technology includes fitters and

Ø                      gateways that are designed to secure communication traffic entering or leaving a specific network domain.