GCHQ

42 candidates are competing in the grand final of the Cyber Security Challenge in London

Chancellor George Osborne said Isis fighters are trying to develop the ability to attack Britain's infrastructure.

Britain to bolster its defences following growing number of terrorism plots against it.

Chancellor set to warn that the terror group can cripple British infrastructure with cyberattacks.

Prime minister made the revelation as the UK government boosts MI5, MI6 and GCHQ numbers.

It is essential that the Investigatory Powers Bill doesn't let politicians decide who is spied on

May and her predecessors secretly approved the bulk collection of communication data since 2001.

The home office published the 296-page report on 4 November amid controversy.

Game-changing ruling will offer Edward Snowden protection in all EU member countries.

So-called Snooper's Charter could allow government to spy on citizens without legal ramifications.

Investigatory Powers Tribunal's ruling means MPs' emails, texts and phone calls can be tapped.

Hackers used Dridex malware to siphon £20m from British bank accounts prompting a global investigation.

UK and US intelligence agencies can hack phones after sending a text and know everything about you.

Newly released documents reveal GCHQ tracked web browsing of "every visible user on the internet".

Fill out Privacy International's form and you too can find out whether GCHQ illegally spied on you.

Security consultant says sensitive information goes through much more secure channels than emails

Seen typeface automatically censors words used by NSA and GCHQ to monitor emails and social media.

Documents obtained by newspaper show GCHQ cleared to spy on MSPs in March.

Parliamentarians demand court rule whether they are exempt from UK government surveillance.

UK's spy agencies must become more transparent and face tougher regulation, say former intelligence chiefs.

A soon to be published report will recommend judges have oversight of all warrants signed by ministers.

Human rights group says other NGOs must also have been electronically monitored.

XKeyscore allows NSA to track people's internet activity by simply typing in their email address.

Antivirus pioneer John McAfee questions the motives and reasons for Edward Snowden leaving Hong Kong for Russia

Schneier says the NSA should look in the mirror and not at Snowden to find source of top secret document leaks

Freedom of the press will not be safe in the UK under new domestic surveillance laws say journalists

A report claiming Russia and China have access to Snowden's cache of documents has been widely criticised

NSA spying powers expanded in 2012 to monitor IP addresses of foreign powers communicating with US.

NSA whistleblower Edward Snowden admits he is more hopeful than ever before, despite being an international fugitive.

GCHQ says that even if it wanted to, it does not have the resources to carry out widespread surveillance on citizens