Which of the Following Statements About E-Procurement Security Issues Is

Which of the following statements about e-procurement security issues is true?

A) There are no security risks for companies doing business on the Internet.
B) Firewalls provide more-than-enough security for all Internet exchanges.
C) Hackers typically avoid business-to-business transactions due to the extensive security in place.
D) Extranet users and Internet users face the same security risks and use the same basic encryption methods.
E) Providing e-procurement security can involve a substantial financial investment from a company.