A 52-year-old man has been arrested by detectives investigating computer hacking linked to business espionage, Scotland Yard said today.
The man was held at around 7am at his home in Oxfordshire on suspicion of offences under the Computer Misuse Act.
He is currently being questioned and his home is being searched, police said.
The arrest was carried out under Operation Tuleta, an investigation into alleged computer hacking and other privacy breaches.
It falls under part of the inquiry that is looking at suspected business espionage.
Today's arrest brings the number of people held under Operation Tuleta to 20.