A 29-year-old British citizen suspected of involvement in a cyberattack that left nearly one million Deutsche Telekom customers without services has been arrested.
Britain’s National Crime Agency arrested the unidentified Briton on Wednesday at an airport in London, Germany federal police said.
The hacking attack in November targeted internet routers belonging to Deutsche Telekom, disrupting connections for some 900,000 customers in Germany, the government said earlier.
Hackers deliberately targeted the remote management of DSL routers, the Federal Office for Information Security (BSI) said, while the German telecoms giant also confirmed the attack.
Deutsche Telekom reinstated all the disrupted connections within days, and the Bonn-based company said there was no indication that customer data was stolen.
Following the arrest, Cologne public prosecutor Dr Daniel Vollmert said police hoped to extradite the man to Germany, where he could face a charge of attempted computer sabotage. The offence carries a prison sentence of up to 10 years.
Dr Vollmert told the Press Association: “He is accused of being the mastermind behind the attack.”