Attacks by Russian hackers could threaten British democracy, GCHQ has warned politicians.
The spy agency's computer security chief has written to political parties offering advice on preventing hacks, according to The Sunday Times.
US intelligence officials have accused the Kremlin of using cyber-attacks to influence the November election. But Foreign Secretary Boris Johnson said there was so far no evidence of successful attacks in the UK.
In a letter to politicians, Ciaran Martin, chief executive of GCHQ's National Cyber Security Centre (NCSC), said: "You will be aware of the coverage of events in the United States, Germany and elsewhere reminding us of the potential for hostile action against the UK political system.
"This is not just about the network security of political parties' own systems. Attacks against our democratic processes go beyond this and can include attacks on parliament, constituency offices, think tanks and pressure groups and individuals' email accounts."
He said GCHQ would offer tailored seminars to help political parties understand the threats and reduce the risk of information being stolen.
In February, Mr Martin warned that Britain had been targeted with 188 attempted high-level hacks in the previous three months, "many of which threatened national security".
Chancellor Phillip Hammond, a former defence and foreign secretary, added that the NCSC had been blocking more than 200 attacks a day on government departments and the public over the last six months.
A report by US intelligence officials concluded that Russian President Vladimir Putin ordered the hacking of the Democratic National Committee to influence the November election in favour of Donald Trump.
Meanwhile Germany's domestic intelligence chief warned in December of "increasingly aggressive cyber-espionage" by a hacking group believed to be controlled by the Russian state.
Mr Johnson told ITV's Peston On Sunday: "We have no evidence that the Russians are actually involved in trying to undermine our democratic processes at the moment. We don't actually have that evidence.
"But what we do have is plenty of evidence that the Russians are capable of doing that. And there is no doubt that they have been up to all sorts of dirty tricks."
The foreign secretary said there was "very little doubt" that the Kremlin was behind the hacking in the US, cyber-attacks on French TV stations and an attempted coup in Montenegro.
Let's hope the Russians do a better job than the Australians of choosing our government. Rupert Murdoch and Lynton Crosby came up with some right duffers.
Let's hope the Russians do a better job than the Australians of choosing our government. Rupert Murdoch and Lynton Crosby came up with some right duffers.
Mr Johnson told ITV's Peston On Sunday: "We have no evidence that the Russians are actually involved in trying to undermine our democratic processes at the moment. We don't actually have that evidence.
"But what we do have is plenty of evidence that the Russians are capable of doing that. And there is no doubt that they have been up to all sorts of dirty tricks."
The foreign secretary said there was "very little doubt" that the Kremlin was behind the hacking in the US, cyber-attacks on French TV stations and an attempted coup in Montenegro.
Beware of the bogey man too.
Mr Johnson told ITV's Peston On Sunday: "We have no evidence that the Russians are actually involved in trying to undermine our democratic processes at the moment. We don't actually have that evidence."But what we do have is plenty of evidence that t
Does anybody actually not think that the USA and UK also indulge in this kind of thing against the Russian and Chinese and any particular Government they do not have good relations with?
The Obama Governemnt was hacking Merkels phone. What do you think they do with countries they aren't friendly with.
Does anybody actually not think that the USA and UK also indulge in this kind of thing against the Russian and Chinese and any particular Government they do not have good relations with? The Obama Governemnt was hacking Merkels phone. What do you th
When I strolled down to the polling booth there were definitely a lot of east europeans hanging around
they even hang around the coffee shops in town
and some on building sites
so this information must be right - they talk foreign so I guess they must be russian spies
When I strolled down to the polling booth there were definitely a lot of east europeans hanging aroundthey even hang around the coffee shops in town and some on building sitesso this information must be right - they talk foreign so I guess they must
I doubt they do, more of a case of disbelieving anything asserted by the pc brigade I would think. Unlimited immigration is good for this country, would be a recent example of their more outrageous untruths.
I doubt they do, more of a case of disbelieving anything asserted by the pc brigade I would think. Unlimited immigration is good for this country, would be a recent example of their more outrageous untruths.