London Daily

Focus on the big picture.
Tuesday, Aug 04, 2026

Ransomware attacks in UK have doubled in a year, says GCHQ boss

Ransomware attacks in UK have doubled in a year, says GCHQ boss

Jeremy Fleming says ransomware is proliferating as it is ‘largely uncontested’ and highly profitable
The head of the UK spy agency GCHQ has disclosed that the number of ransomware attacks on British institutions has doubled in the past year.

Jeremy Fleming, the director of GCHQ, said locking files and data on a user’s computer and demanding payment for their release had become increasingly popular among criminals because it was “largely uncontested” and highly profitable.

His comments, made on Monday to the Cipher Brief annual threat conference, follow warnings that Russia and China are harbouring criminal gangs that are successfully targeting western governments or firms.

“I think that the reason [ransomware] is proliferating – we’ve seen twice as many attacks this year as last year in the UK – is because it works. It just pays. Criminals are making very good money from it and are often feeling that that’s largely uncontested,” he told delegates.

GCHQ has declined to give the exact numbers of ransomware attacks recorded in the UK this year or last. However, a US Treasury report released this month disclosed that suspicious ransomware-related transactions in the US over the first six months of this year were worth around $590m. The top 10 hacking groups believed to be behind criminal activity had moved about $5.2bn worth of bitcoin over the past three years, the report claimed.

Amid growing concerns over China and Russia’s ties to ransomware gangs, Fleming also called for more clarity over the links between criminals and hostile states.

“In the shorter term we’ve got to sort out ransomware, and that is no mean feat in itself. We have to be clear on the red lines and behaviours that we want to see, we’ve got to go after those links between criminal actors and state actors,” he said.

Ransomware is malware that employs encryption to hold a victim’s information at ransom. A user or organisation’s critical data is encrypted so that they cannot access files, databases, or applications. A ransom is then demanded to provide access. It has been used as part of a number of high-profile cyber-attacks in recent years, including the 2017 attack on the NHS.

Specialists believe Russian ransomware will continue to expand given the proliferation of cyber hacking tools and cryptocurrency payment channels.

Lindy Cameron, chief executive of the National Cyber Security Centre (NCSC), said this month that ransomware “presents the most immediate danger” of all cyber threats faced by the UK, in a speech to the Chatham House thinktank.

In May this year, the then foreign secretary, Dominic Raab, said states such as Russia could not “wave their hands” and say ransomware gangs operating from their territory had nothing to do with them.

Since then the west has sought to ramp up the pressure on the Kremlin. Joe Biden twice raised the issue with Vladimir Putin over the summer and he hinted that the US would be prepared to attack computer servers belonging to the gangs if nothing was done.
Newsletter

Related Articles

0:00
0:00
Close
Europe’s Drying Rivers Trigger Power Cuts, Factory Shutdowns and Wildfire Emergencies
Nigel Farage Expresses Openness to Potential Alliance with Restore Britain
AstraZeneca Merger Talks Reflect Intensifying Pharmaceutical Consolidation
University Merger May Set Template for Higher Education Reform
Apple's Legal Challenge Highlights Growing Tension Over Encryption and Surveillance
Prime Minister Andy Burnham's Agenda Signals Shift Toward Greater Regional Devolution
Mental Health Trust Faces Criticism Over Planned £25 Million Budget Cuts
Scientists and Cultural Leaders Call for Funding to Save Jodrell Bank Observatory
UK Manufacturing Output Reaches Highest Level in Nearly Two Years
University of Greenwich and University of Kent Complete Landmark Merger
Nigel Farage Unveils Naval Border Proposal Amid Questions Over £5 Million Donation
Prime Minister Andy Burnham Pledges Tougher Action on Small Boat Crossings
Apple Challenges UK Government Over Encrypted Data Access Demands
AstraZeneca Shares Fall After Reports of $400 Billion Bristol Myers Squibb Merger Talks
Triple Lock Lifts UK State Pension but Leaves a Wider Retirement Gap
Danube Drought Forces Hungary’s Paks Nuclear Plant Into Full Shutdown
Ceuta Death Toll Rises as Spain and Europe Clash Over Border Response
Cuba’s Grid Fails Again as Fuel Crisis Deepens
Nazca Lines Flight Crash Kills Thirteen as Peru Suspends Aerodiana
Modern Slavery Decisions Broaden the Al Fayed Inquiry’s Frame
FIFA’s Retreat Leaves a Larger Question Over Who Guards the Game
Two Firefighting Crew Members Die in Helicopter Collision West of Athens
Public Sector Automation Through Artificial Intelligence
Regional Investment Beyond London
Protection of Strategic Technology Assets
UK Competition Regulator Blocks Major Foreign Takeover of British Quantum Computing Firm
UK Government Commits Two Billion Pounds to Modernise Northern Rail Network
UK Parliament Approves Planning Reforms to Accelerate Housing Construction on Green Belt Land
Scotland Approves Major Floating Offshore Wind Expansion in the North Sea
United Kingdom and European Union Sign Defence and Critical Minerals Cooperation Agreement
NHS Invests Five Hundred Million Pounds in Artificial Intelligence Diagnostics to Reduce Waiting Lists
Bank of England Cuts Interest Rate to Three Point Seven Five Percent as Inflation Pressures Ease
Ceuta Border Surge Recasts Europe’s Migration Debate
Burnham Promises a Harder Channel Response as Crossings Test His New Government
Glasgow 2026 Commonwealth Games End With Organisers Defending Smaller Format as Sustainable Model
Reform UK Faces Labour Criticism Over Nigel Farage Leadership Return Discussions
Environment Agency Restricts River Thames Navigation as Low Water Levels Raise Concerns
UK Government Launches Free Bus Travel Scheme for Children During Summer Holidays
Chancellor Rachel Reeves Confirms October Budget Date and Plans Wider Regional Funding Shift
Prime Minister Andy Burnham Promises Tougher Action on Small Boat Crossings Amid European Migration Pressure
UK Economic Growth Forecast Raised Slightly as Inflation Expected to Remain Above Target Until 2029
National Farmers Union Warns of Food Shortage Risks as Drought and Heatwaves Damage UK Crops
Finland Deploys Commercial-Scale Thermal Batteries Using Crushed Rock to Store Renewable Grid Energy
Valued at $109 Million: F-35B Fighter Jet Crashes in Southern California
Sainsbury Agrees to Sell Argos in £120 Million Deal to Private Consortium
High Court Clears Way for Construction of Chinese Embassy at Royal Mint Court
UK Fuel Prices Climb to Multi-Month Highs as Strait of Hormuz Tensions Disrupt Oil Supplies
Severe Summer Drought and Record Heat Put UK Harvests at Risk
Prime Minister Andy Burnham Faces Labour Backbench Opposition Over Potential Support for New North Sea Oil and Gas Drilling
Bank of England Warns Inflation Will Stay Above 3% as Middle East Energy Shock Prolongs Cost-of-Living Pressures
×