London Daily

Focus on the big picture.
Sunday, Mar 22, 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
Meghan Markle’s Possible UK Return Sparks Renewed Attention on Sussex Role
Starmer Convenes Urgent Talks on Cost-of-Living Pressures Linked to Iran Conflict
Starmer Convenes Urgent Talks on Cost-of-Living Pressures Linked to Iran Conflict
UK Investors Eye Bargain Shares Ahead of ISA Deadline Amid Market Volatility
UK Investors Eye Bargain Shares Ahead of ISA Deadline Amid Market Volatility
Northern Lights Expected Over UK Skies Tonight Amid Strong Solar Activity
UK Condemns Iran Missile Strike and Warns Against Threats to British Personnel
UK Warns of Global Flight Disruptions as Iran Conflict Escalates Under Trump’s Leadership
UK Condemns Iran After Missile Strike Targets Strategic Diego Garcia Base
Deadly Meningitis Outbreak in UK Reinforces Urgency of Vaccination Campaigns
Iran Launches Long-Range Missile Strike on Remote US-UK Base, Signaling Expanded Reach
Iran Launches Long-Range Missile Strike on Remote US-UK Base, Signaling Expanded Reach
UK Rules Out Cyprus Base Role in Joint US Self-Defence Framework
UK Ends Hereditary Peerage Rights in Parliament in Historic Constitutional Reform
Lord Walney Warns of Expanding Iranian Influence Networks Within the United Kingdom
Iranian National Among Two Arrested After Attempt to Access UK Nuclear Submarine Base
Deregulation, Artificial Intelligence, and Fraud Laws Reshape UK Financial Services Landscape
UK Considers Lower Speed Limits to Reduce Fuel Use Amid Escalating Energy Crisis
UK Borrowing Costs Surge to Post-Crisis High as Markets React to Inflation and War Risks
UK Government Prepares Emergency Economic Measures as Iran Conflict Fuels Financial Risks
Meningitis B Outbreak in the UK Raises Urgent Health Warnings as Cases Surge
Iran Issues Stark Warning to Britain Over US Base Access Amid Expanding Conflict
United Kingdom Authorizes US Strikes from British Bases as Iran Threatens Key Shipping Routes
Reform UK Suspends Scottish Candidate Following Financial Misconduct Allegations
Apple issues an unusual warning: this is how your iPhone can be hacked without you doing anything
UK and Nigeria Reach Agreement to Accelerate Return of Irregular Migrants
UK Sets New Aid Priorities Following Significant Budget Reductions
Cyprus President Urges Open Dialogue Over Future of British Sovereign Base Areas
Cyprus President Urges Open Dialogue Over Future of British Sovereign Base Areas
UK Plans 50% Steel Tariffs in Bold Move to Protect Domestic Industry
Iran Conflict Sends Shockwaves Through UK Economy as Energy Costs and Trade Risks Surge
UK Health Officials Warn Kent Meningitis Outbreak Still Active as Cases Continue to Rise
UK Climate Progress Faces Scrutiny Over Reliance on Carbon Accounting Methods
UK Deploys Advisers to United States to Shape Plan for Reopening Strait of Hormuz
Amazon Bets on AI-Driven Alexa Upgrade to Revive UK Smart Speaker Market
UK Abortion Law Changes Spark Strong Response from Church Leaders and Pro-Life Advocates
UK Abortion Law Changes Spark Strong Response from Church Leaders and Pro-Life Advocates
GB News Faces Regulatory Complaints Over On-Air Remarks on ‘Genocide’ Claims
UK Signals Expanded Support for Gulf Allies as Iranian Attacks Intensify Regional Threats
UK VAT Decision Opens Path for Potential Refunds to U.S. Biopharma Firms
UK and Canada Advance ‘Middle Power’ Strategy to Shape Global Influence Beyond Superpowers
Google Explores AI Opt-Out Features in Search to Address UK Regulatory Concerns
Google Explores AI Opt-Out Features in Search to Address UK Regulatory Concerns
UK Fuel Prices Poised to Surge as Global Tensions Drive Oil Market Volatility
UK Fuel Prices Poised to Surge as Global Tensions Drive Oil Market Volatility
UK Holds Back on Hormuz Escort Mission While Continuing Talks with Allies
TrumpRx Pricing Platform Faces Scrutiny as Some Medicines Remain Costlier Than in the UK
UK, Netherlands and Finland Explore Joint Defence Investment Bank to Boost Military Capability
Deadly Meningitis Outbreak in Kent Raises Alarm as Cases Surge and Emergency Response Expands
UK Security Adviser Viewed US-Iran Nuclear Deal as Within Reach Before Sudden Escalation
×