Digitically scraped records from more than 700 UK internet service providers show they have been hacked, it has been claimed.
The National Audit Office (NAO) is examining whether the UK’s data was hacked in April 2016 by Russian state-sponsored hackers.
The data breach was revealed when it was discovered that a British company, EMI Technologies, had been the victim of a cyber-attack.
In a report released on Wednesday, the NAO said it had been unable to determine the extent of the damage caused to the company’s computer systems, and that it was still investigating how the information was leaked.
“The NAO has been unable, as yet, to determine how many of these attacks were carried out by the Russian Federation,” the report said.
“As a result of the investigation, we are unable to provide a specific figure for the number of attacks that have been carried out in the UK.”
The report said that the data breach could be attributed to two distinct actors, one based in Ukraine, the other in Belarus.
“Both actors are believed to have been involved in the attack,” it said.
The report did not reveal the nationality of the second actor.
The NAOP’s investigation was launched after the Government announced the creation of a cybersecurity taskforce, chaired by Lord Oakeshott, the chairman of the House of Lords, which is responsible for tackling cybercrime.
The group of cybercrime experts includes representatives from Microsoft, Yahoo, Google and other companies.
Lord Oakeshoett, who is a former police and intelligence chief, was appointed in April to head the taskforce.