Cyber attack Europol says it was unprecedented in scale. Image copyright. Webroot. Image caption. The ransomware has been identified as Wanna. Cry here shown in a safe environment on a security researchers computer. A cyber attack that hit organisations worldwide including the UKs National Health Service was unprecedented, Europes police agency says. Europol also warned a complex international investigation was required to identify the culprits. Ransomware encrypted data on at least 7. Friday. Payments were demanded for access to be restored. European countries, including Russia, were among the worst hit. Although the spread of the malware known as Wanna.
Computer Hacking Crime Australia FullCry and variants of that name appears to have slowed, the threat is not yet over. Europol said its cyber crime team, EC3, was working closely with affected countries to mitigate the threat and assist victims. Media playback is unsupported on your device. Media caption. NHS cyber attack My heart surgery was cancelledIn the UK, a total of 4. National Health trusts were hit by Fridays cyber attack, of which all but six are now back to normal, according to the Home Secretary Amber Rudd. The attack left hospitals and doctors unable to access patient data, and led to the cancellation of operations and medical appointments. Who else has been affected by the attack Some reports say Russia has seen more infections than any other country. Banks, the state owned railways and a mobile phone network were hit. Russias interior ministry said 1,0. In Germany, the federal railway operator said electronic boards had been disrupted people tweeted photos of a ticket machine. Frances carmaker Renault was forced to stop production at a number of sites. Other targets have included Large Spanish firms such as telecoms giant Telefonica, and utilities Iberdrola and Gas Natural. Portugal Telecom, a university computer lab in Italy, a local authority in Sweden. The US delivery company Fed. Ex. Schools in China, and hospitals in Indonesia and South Korea. Coincidentally, finance ministers from the G7 group of leading industrial countries had been meeting on Friday to discuss the threat of cyber attacks. They pledged to work more closely on spotting vulnerabilities and assessing security measures. Read more I was the victim of a ransom attackWho has been hit by the NHS cyber attackExplaining the global ransomware outbreak. A hack born in the USA How did it happen and who is behind itThe malware spread quickly on Friday, with medical staff in the UK reportedly seeing computers go down one by one. NHS staff shared screenshots of the Wanna. Cry programme, which demanded a payment of 3. Bitcoin to unlock the files for each computer. The infections seem to be deployed via a worm a program that spreads by itself between computers. Most other malicious programs rely on humans to spread by tricking them into clicking on an attachment harbouring the attack code. By contrast, once Wanna. Cry is inside an organisation it will hunt down vulnerable machines and infect them too. Media playback is unsupported on your device. Australia is a highly connected countrytechnology and the internet are crucial to Australias way of life. While the potential of the internet and digital economy. Media caption. The BBCs Rory Cellan Jones explains how Bitcoin works. It is not clear who is behind the attack, but the tools used to carry it out are believed to have been developed by the US National Security Agency NSA to exploit a weakness found in Microsofts Windows system. This exploit known as Eternal. Blue was stolen by a group of hackers known as The Shadow Brokers, who made it freely available in April, saying it was a protest about US President Donald Trump. A patch for the vulnerability was released by Microsoft in March, which would have automatically protected those computers with Windows Update enabled. Media playback is unsupported on your device. Media caption. Technology explained what is ransomwareMicrosoft said on Friday it would roll out the update to users of older operating systems that no longer receive mainstream support, such Windows XP which the NHS still largely uses, Windows 8 and Windows Server 2. The number of infections seems to be slowing after a kill switch appears to have been accidentally triggered by a UK based cyber security researcher tweeting as Malware. Tech. Blog. But in a BBC interview, he warned that it was only a temporary fix. It is very important that people patch their systems now because there will be another one coming and it will not be stoppable by us, he said. Media playback is unsupported on your device. Media caption. How a computer expert managed to slow the spread of Wanna. CryptorAccidental hero by Chris Foxx, technology reporter. The security researcher known online as Malware. Tech was analysing the code behind the malware on Friday night when he made his discovery. He first noticed that the malware was trying to contact an unusual web address but this address was not connected to a website, because nobody had registered it. So, every time the malware tried to contact the mysterious website, it failed and then set about doing its damage. Malware. Tech decided to spend 8. By owning the web address, he could also access analytical data. But he later realised that registering the web address had also stopped the malware trying to spread itself. It was actually partly accidental, he told the BBC. Blogger halts ransomware by accidentHave you or your company been affected by the cyber attack Email us at haveyoursaybbc. You can also contact us in the following ways Tweet BBCHave. Your. Say. Whats. App 4. 47. 55. 5 1. Text an SMS or MMS to 6. UK or 4. 4 7. 62.