He will succeed Iain Lobban, who announced his departure earlier this year after five years in the job.
Diplomat appointed to head UK eavesdropping agency →
"Cyberspace is contested every day, every hour, every minute, every second," Lobban said. "I can vouch for that from the displays in our own operations center of minute-by-minute cyber attempts to penetrate systems around the world."
UK says it gets hit by 1,000 cyber attacks monthly →
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