______________ is a Unix security scanning tool developed at Texas A&M university.

COPS (Computer Oracle and Password System) is another early Unix security tool, but it was not developed at Texas A&M.

SATAN (Security Administrator Tool for Analyzing Networks) is a well-known network security scanner, but it was developed by Dan Farmer and Wietse Venema, not at Texas A&M.

TIGER (Tiger Improved Gnu for Error Reporting) is a security auditing and intrusion detection tool specifically designed for Unix systems, and it was indeed developed at Texas A&M University.

AGGIE is a nickname for Texas A&M students/alumni, not a security tool.

SNIFFER is a generic term for packet capture tools, not a specific security scanner developed at Texas A&M.