"We continue to see Russian-aligned hacktivist groups targeting UK organisations and although denial-of-service attacks may be technically simple, their impact can be significant, said NCSC director of national resilience, Jonathan Ellison. By overwhelming important websites and online systems, these attacks can prevent people from accessing the essential services they depend on every day. All organisations, especially those identified in today's alert, are urged to act now by reviewing and implementing the NCSC's freely available guidance to protect against DoS attacks and other cyber threats."
"Although relatively unsophisticated, denial of service attacks can prove exceedingly disruptive - besides knocking vital public-facing operations offline, they also cause their victims to tie themselves in knots analysing, defending against, and recovering from them, losing time, money, and operational focus. The NCSC said the current wave of attacks was driven by ideology and the UK's support for Ukraine, as opposed to financial gain."
A wave of denial of service attacks is targeting UK organisations, especially local government and critical national infrastructure operators, and is attributed to Russian-aligned hacktivist groups motivated by ideology and UK support for Ukraine rather than financial gain. The attacks are relatively unsophisticated yet highly disruptive, knocking public-facing operations offline and consuming victims' time, money, and operational focus during analysis, defence, and recovery. The NCSC urged at-risk organisations to review and implement its guidance and to work with upstream ISPs to establish existing mitigations and any limits ISPs may impose to protect other customers.
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