Rebekah Brooks, former News of the World news editor James Weatherup and former managing editor Stuart Kuttner all denied conspiracy to hack phones.
Brooks also denied two charges of conspiracy to commit misconduct in public office.
She also denied two counts of conspiracy to pervert the course of justice. Her personal assistant Cheryl Carter also denies the charge.
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Guillier conceded a "severe defeat" defeat to his supporters as the result came in.
The outage struck Hartfield-Jackson Atlanta International Airport at around 1pm local time, stopping all outgoing flights.
It will be a chilly day for many parts with the highest temperatures, about 10 Celsius (50F) in the far northwest.