erc: who: United States. General Accounting Office. what: Information Security: The Melissa Computer Virus Demonstrates Urgent Need for Stronger Protection Over Systems and Sensitive Data when: 19990415 where: https://digital.library.unt.edu/ark:/67531/metadc289583/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://digital.library.unt.edu/ark:/67531/