Ransomware “presents the most immediate danger to the UK”, according to the head of the National Cyber Security Centre (NCSC).
NCSC CEO Lindy Cameron issued the warning as part of her speech during Monday’s Cyber 2021 conference at Chatham House.
Reflecting on her first year as NCSC CEO, Cameron said that the body has witnessed “real-world impact from a spate of ransomware attacks” which had caused “significant damage (...) to the public sector”.
The ransomware attacks on Ireland’s Health Service Executive (HSE) and London’s Hackney Borough Council were among the examples listed by Cameron, who also mentioned US incidents targeting SolarWinds and Colonial Pipeline.
Despite the rise in attacks, many UK organisations “have no incident response plans, or ever test their cyber defences,” she added.
The speech comes days after a report found that only a third (35.8%) of businesses have insurance cover for ransomware attacks, despite it being one of the most common forms of cyber threat. Almost one in six (15.9%) of respondents also reported having no disaster recovery plan in place, making them unprepared to deal with a potential attack.
Cameron also advised organisations to not succumb to hackers’ financial demands, saying that the NCSC expects ransomware to “continue to be an attractive route for criminals as long as organisations remain vulnerable and continue to pay”.
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“We have been clear that paying ransoms emboldens these criminal groups – and it also does not guarantee your data will be returned intact, or indeed returned at all,” she added.
Russia was named the culprit of the UK’s ransomware woes, with the NCSC and the National Crime Agency (NCA) finding that “cyber criminals based in Russia and neighbouring countries are responsible for most of the devastating ransomware attacks against UK targets”.
China, North Korea, and Iran were also found to be threats to the UK’s cyber security – Cameron said that, although the latter two states are “less sophisticated than Russia and China”, they “regularly use digital intrusions to achieve their objectives – including through theft and sabotage”.
Russia had been found to be behind last year’s attack on SolarWinds, with US and UK security agencies also publishing a joint advisory warning against a ‘global brute force campaign’ orchestrated by the Russian government.
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