An investigation has discovered that arms dealers are trading on a secret website and are offering to covertly import weapons such as AK-47 automatic assault rifles into the UK.

A recording of an international conference call about computer hacking involving FBI officials and Metropolitan Police officers has been leaked on the Web – by the hackers they are investigating.

Hackers working under the Anonymous umbrella have brought down the website of the European Parliament and several Irish government websites.

The credit card details of dozens of City of London finance executives have been posted online following an attack by computer hackers on a US private intelligence firm.

Pictures of small electronic devices that are said to have been dropped by parachute near a town in northern Syria have been posted online.

The UK website of Amnesty International has been hacked in a campaign that appears to be targeting human rights workers, according to security experts.

A university engineering academic claims to have solved a challenge posed by the spy agency GCHQ on a website designed to attract new recruits.

Hackers have published details of apparently compromised Ministry of Defence email accounts.

Three key Israeli government websites appear to have been attacked in a cyber-strike that is being linked to the Anonymous hacking collective.

Anonymous hackers have claimed responsibility for a cyber-attack that is said to have to have forced the official website of CapitalOne bank offline.