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"a vendor-supplied Firewall went down and connection to some operational data was unexpectedly lost"
https://sg.news.yahoo.com/southwest-airlines-resumes-operations-briefly-160117118.html
"a vendor-supplied Firewall went down and connection to some operational data was unexpectedly lost"
https://sg.news.yahoo.com/southwest-airlines-resumes-operations-briefly-160117118.html