London Daily

Focus on the big picture.
Sunday, Nov 16, 2025

Microsoft identifies more than 40 organizations targeted in massive cyber breach

Microsoft identifies more than 40 organizations targeted in massive cyber breach

Microsoft has identified more than 40 of its customers around the world that had problematic versions of a third-party IT management program installed and that were specifically targeted by the suspected Russian hacking campaign disclosed this week, the company said in a blog post Thursday.
The tech company said that 80% of those victims are in the US while the rest are in seven other countries: Canada, Mexico, Belgium, Spain, the United Kingdom, Israel and the United Arab Emirates.

"It's a certainty that the number and location of victims will keep growing," said Microsoft President Brad Smith, who added that the company has worked to notify the affected organizations.

Microsoft's analysis represents the clearest and most specific assessment yet of the scope of the damage caused by the hacking campaign, which was secretly conducted through a third-party software program sold by SolarWinds, an IT management firm.

The software that the suspected Russian malware was delivered with, SolarWinds Orion, has as many as 18,000 global customers, including government agencies, private companies and other organizations. Microsoft said Thursday that the attack "reached many major national capitals outside Russia."

"The attack unfortunately represents a broad and successful espionage-based assault on both the confidential information of the U.S. Government and the tech tools used by firms to protect them," Smith wrote. "The attack is ongoing and is being actively investigated and addressed by cybersecurity teams in the public and private sectors, including Microsoft."

Microsoft has been working as an investigative partner to cybersecurity firm FireEye, which is also a victim and issued the first warning about the supply chain attack.

Previously, FireEye also identified victims across several sectors and countries, including government, consulting, technology, telecom and extractive entities in North America, Europe, Asia and the Middle East.

Earlier Thursday, Reuters reported that Microsoft had been compromised as well. Microsoft said it has "isolated and removed" a vulnerability in its systems tied to third-party software that had facilitated a suspected Russian hacking campaign.

Updates to the software sold by SolarWinds were used as a carrier for malicious code that US officials believe may be linked to Russia. That software was found in Microsoft's network, the company said in a statement Thursday evening.

The statement marks Microsoft's first public acknowledgment that in addition to investigating the malware, it was also a victim of it.

"Like other SolarWinds customers, we have been actively looking for indicators of this actor and can confirm that we detected malicious Solar Winds binaries in our environment, which we isolated and removed," the statement said.

Microsoft has not found evidence that an actual data breach occurred or that the attackers exploited their access, the company added. The company pushed back on a Reuters report that suggested Microsoft's products had been used to compromise other victims.

"Our investigations, which are ongoing, have found absolutely no indications that our systems were used to attack others," Microsoft said.
Newsletter

Related Articles

0:00
0:00
Close
Nearly Half of Job Losses Under Labour Government Affect UK Youth
UK Chancellor Reeves Eyes High-Value Home Levy in Budget to Raise Tens of Billions
UK Urges Poland to Choose Swedish Submarines in Multi-Billion € Defence Bid
US Border Czar Tom Homan Declares UK No Longer a ‘Friend’ Amid Intelligence Rift
UK Announces Reversal of Income Tax Hike Plans Ahead of Budget
Starmer Faces Mounting Turmoil as Leaked Briefings Ignite Leadership Plot Rumours
UK Commentator Sami Hamdi Returns Home After US Visa Revocation and Detention
UK Eyes Denmark-Style Asylum Rules in Major Migration Shift
UK Signals Intelligence Freeze Amid US Maritime Drug-Strike Campaign
TikTok Awards UK & Ireland 2025 Celebrates Top Creators Including Max Klymenko as Creator of the Year
UK Growth Nearly Stalls at 0.1% in Q3 as Cyberattack Halts Car Production
Apple Denied Permission to Appeal UK App Store Ruling, Faces Over £1bn Liability
UK Chooses Wylfa for First Small Modular Reactors, Drawing Sharp U.S. Objection
Starmer Faces Growing Labour Backlash as Briefing Sparks Authority Crisis
Reform UK Withdraws from BBC Documentary Amid Legal Storm Over Trump Speech Edit
UK Prime Minister Attempts to Reassert Authority Amid Internal Labour Leadership Drama
UK Upholds Firm Rules on Stablecoins to Shield Financial System
Brussels Divided as UK-EU Reset Stalls Over Budget Access
Prince Harry’s Remembrance Day Essay Expresses Strong Regret at Leaving Britain
UK Unemployment Hits 5% as Wage Growth Slows, Paving Way for Bank of England Rate Cut
Starmer Warns of Resurgent Racism in UK Politics as He Vows Child-Poverty Reforms
UK Grocery Inflation Slows to 4.7% as Supermarkets Launch Pre-Christmas Promotions
UK Government Backs the BBC amid Editing Scandal and Trump Threat of Legal Action
UK Assessment Mis-Estimated Fallout From Palestine Action Ban, Records Reveal
UK Halts Intelligence Sharing with US Amid Lethal Boat-Strike Concerns
King Charles III Leads Britain in Remembrance Sunday Tribute to War Dead
UK Retail Sales Growth Slows as Households Hold Back Ahead of Black Friday and Budget
Shell Pulls Out of Two UK Floating Wind Projects Amid Renewables Retreat
Viagogo Hit With £15 Million Tax Bill After HMRC Transfer-Pricing Inquiry
Jaguar Land Rover Cyberattack Pinches UK GDP, Bank of England Says
UK and Germany Sound Alarm on Russian-Satellite Threat to Critical Infrastructure
Former Prince Andrew Faces U.S. Congressional Request for Testimony Amid Brexit of Royal Title
BBC Director-General Tim Davie and News CEO Deborah Turness Resign Amid Editing Controversy
Tom Cruise Arrives by Helicopter at UK Scientology Fundraiser Amid Local Protests
Prince Andrew and Sarah Ferguson Face Fresh UK Probes Amid Royal Fallout
Mothers Link Teen Suicides to AI Chatbots in Growing Legal Battle
UK Government to Mirror Denmark’s Tough Immigration Framework in Major Policy Shift
UK Government Turns to Denmark-Style Immigration Reforms to Overhaul Border Rules
UK Chancellor Warned Against Cutting Insulation Funding as Budget Looms
UK Tenant Complaints Hit Record Levels as Rental Sector Faces Mounting Pressure
Apple to Pay Google About One Billion Dollars Annually for Gemini AI to Power Next-Generation Siri
UK Signals Major Shift as Nuclear Arms Race Looms
BBC’s « Celebrity Traitors UK » Finale Breaks Records with 11.1 Million Viewers
UK Spy Case Collapse Highlights Implications for UK-Taiwan Strategic Alignment
On the Road to the Oscars? Meghan Markle to Star in a New Film
A Vote Worth a Trillion Dollars: Elon Musk’s Defining Day
AI Researchers Claim Human-Level General Intelligence Is Already Here
President Donald Trump Challenges Nigeria with Military Options Over Alleged Christian Killings
Nancy Pelosi Finally Announces She Will Not Seek Re-Election, Signalling End of Long Congressional Career
UK Pre-Budget Blues and Rate-Cut Concerns Pile Pressure on Pound
×