Companies and organisations are increasingly using a range of alternative schemes/technologies to protect their information systems and e-commerce facilities.
Such schemes/technologies include the use of:
1. system firewalls
2. intrusion detection systems
3. data/information encryption facilities,
4. digital certificates, and/or
5. authentication and authorisation software.
Describe each of the above schemes/technologies and explain how each of them assists in protecting a company’s/organization’s information systems and e-commerce facilities.