Marks & Spencer Hit by Ransomware Attack, Outages Reported
British retail giant Marks & Spencer (M&S) experienced a ransomware attack that caused widespread disruption, including to its contactless payment system and online ordering. The breach was detected on April 18, 2025. Threat actors known as 'Scattered Spider' are believed to be responsible, having reportedly breached M&S as early as February and stolen the Windows domain's NTDS.dit file.
Signal context
First seen: Apr 18, 2025
Last updated: Jun 26, 2026
Status: Public signal
Key points
- Ransomware attack caused widespread disruption.
- Contactless payment and online ordering systems affected.
- Breach detected on April 18, 2025.
Signal analysis
BetaThis analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.
Sector: Retail Trade
Likely country: 🇬🇧 United Kingdom
inferred from signal text
Watch ransomware, endpoint compromise and business interruption exposure.
- Source type: outside the affected organization
Impact area: Availability
- 1 signal in the same sector
- 22 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
April 2025 Data Breaches: 4 Million SSNs Leaked, 23M+ in Settlements | Pomeriumhttps://www.pomerium.com/blog/april-2025-data-breachesPublic source from pomerium.com.
Marks & Spencer breach linked to Scattered Spider ransomware attack - Bleeping Computerhttps://www.bleepingcomputer.com/news/security/marks-and-spencer-breach-linked-to-scattered-spider-ransomware-attack/Public source from bleepingcomputer.com.
Cyber News Roundup April 25th 2025 - Integrity360https://www.integrity360.com/en-us/resources/threat-intel-roundup/threat-intel-roundup-4-25-25Public source from integrity360.com.
Top 10 Cyber-Attacks of 2025 - Infosecurity Magazinehttps://www.infosecurity-magazine.com/news-features/top-10-cyberattacks-of-2025/Public source from infosecurity-magazine.com.
April 2025 Data Breaches: 4 Million SSNs Leaked, 23M+ in Settlements | Pomeriumhttps://pomerium.com/blog/april-2025-data-breaches/Public source from pomerium.com.
Related signals
Grouped by why the signal is relevant.
eogb.co.uk Hit by Stormous Ransomware Group
eogb.co.uk, a UK-based organization, was claimed as a victim by the Stormous ransomware group. The incident was discovered on June 28, 2026, at 21:29 UTC, with deep access to Microsoft Dynamics GP, internal legal documents, partnership agreements, customer contracts, operational spreadsheets, financial reports, and executive documents.
Alamo Heights ISD Reports Data Breach Following Ransomware Attack
Alamo Heights Independent School District (ISD) reported a data breach impacting over 26,000 people, disclosed to the Texas Attorney General's office on June 25, 2026 (published June 26, 2026 UTC). The breach was linked to a ransomware attack by the Qilin group, which occurred on April 9, 2026. The compromised information included names, Social Security numbers, driver's license numbers, and bank and medical information.
Latvijas Valsts Mezi (LVM) Suffers Cybersecurity Breach
Latvia's state-owned company Latvijas Valsts Mezi (LVM) confirmed a cybersecurity breach of its IT systems, reported on June 26, 2026. The incident, discovered around June 22, led to hackers accessing LVM's IT infrastructure. External IT systems, including 'LVM GEO' and the 'Mednis' hunting app, were taken offline, along with some internal communication systems. A foreign ransomware group claimed responsibility for the attack, which raised concerns due to LVM's role in developing an electoral IT platform for Latvia's parliamentary elections.
Challenge Manufacturing Data Breach Exposes Social Security Numbers
Challenge Manufacturing, an automotive manufacturing company, disclosed a data breach to the Texas Attorney General on June 26, 2026. The Chaos ransomware group claimed responsibility on May 17, 2026, stating they obtained 270 GB of data from the company's systems.
ATLAS ELEKTRONIK GmbH Hit by TheGentlemen Ransomware Attack
On June 25, 2026, the ransomware group 'TheGentlemen' claimed responsibility for a cyberattack on ATLAS ELEKTRONIK GmbH, a German defense technology company specializing in maritime electronics and naval systems. The group issued an ultimatum, threatening to leak sensitive company data unless negotiations commence. The attack was reported on June 25, 2026, and is being monitored by cybersecurity intelligence platforms.
Malicious 'Edgecution' Extension Exploits Microsoft Edge Native Messaging for Ransomware Deployment
Security researchers reported on June 25, 2026, the discovery of a new malware campaign dubbed 'Edgecution,' which utilizes a malicious Microsoft Edge extension to deploy ransomware and a Python-based backdoor. The extension abuses the Native Messaging API to escape the browser sandbox and establish a persistent system-level executor. Attackers are reportedly using Microsoft Teams for social engineering, directing victims to fake 'Outlook Updates Management Console' websites to trick them into installing the malicious extension. This campaign is believed to be operated by an Initial Access Broker (IAB) linked to the 'Payout Kings' ransomware operation.
