Malware & Ransomware
Which organisations face new ransomware leak claims in latest surge?
Forty-three unverified theft statements were posted by eight groups in a single day, with Qilin leading the activity across multiple sectors.
Malware & Ransomware
Malware & Ransomware coverage from Breach Observer holds 16 articles, 14 of them reference guides. The newest was published on October 16, 2026. New stories are added as soon as they are confirmed, from more than 150 sources checked as often as every 45 seconds. Each story lists its sources. Primary sources we follow for this section include MITRE ATT&CK and No More Ransom.
Malware & Ransomware
Malware & Ransomware
Why infostealer cookie theft demands a unified intelligence vendor
Stolen session cookies bypass multi-factor authentication, making the choice of infostealer intelligence vendor a critical operational decision for security teams.
Malware & Ransomware
Disaster Recovery for Small Teams: Restore Operations Fast
Most small businesses fail recovery not due to lost data, but because they lack documented procedures for manual business processes during downtime.
Malware & Ransomware
Malicious Mobile Apps: Risks and Protection for Small Businesses
Mobile devices bypass network perimeter defences, allowing malware to harvest credentials and exfiltrate data directly from the device without triggering standard alerts.
Malware & Ransomware
Email Attachment Scanning: How It Works and What It Misses
Static scanning fails against fileless attacks, requiring sandboxing to execute code in isolation before delivery reaches the inbox.
Malware & Ransomware
Adware Risks for Small Businesses: Detection and Mitigation Strategies
Adware creates persistent network noise that masks genuine threats, forcing security teams to waste resources filtering benign but annoying traffic from actual attacks.
Malware & Ransomware
Backdoors Explained: How Hidden Access Points Compromise Your System
A backdoor is a concealed entry point that bypasses standard security controls, allowing persistent access long after the initial intrusion method is discovered and closed.
Malware & Ransomware
Golden Images: The Hidden Risks of Reusing System Templates
Reusing a single system template spreads initial configuration errors across every deployed machine, creating a single point of failure for your entire infrastructure.
Malware & Ransomware
Stop IoT Malware Infections Before They Spread
Network segmentation isolates infected devices, preventing lateral movement even when credentials are stolen or firmware is compromised by persistent threats.
Malware & Ransomware
Backdoors: Risks and Protection for Small Businesses
Most backdoors bypass perimeter defences entirely because they reside inside applications you authorised, turning trusted software into a persistent entry point.
Malware & Ransomware
Email Attachment Scanning: Practical Defences for Small Teams
Fileless malware and legitimate scripts bypass signature checks, making behavioural analysis and execution sandboxing the only reliable filters for untrusted attachments.
Malware & Ransomware
PyPI Package Risks: How to Block Supply Chain Attacks
Malicious code hides in trusted Python libraries, allowing attackers to bypass perimeter defences and execute commands directly within your development environment without triggering standard alerts.
Malware & Ransomware
How Reimaging Infected Computers Works: The Mechanics and Limits
Reimaging erases the operating system to remove persistent threats, but it fails to protect data stored on separate volumes or hidden in firmware components.
Malware & Ransomware
How to Remove Malware From a Mac: A Step-by-Step Incident Response
Manual removal often fails because persistence mechanisms survive standard deletion, requiring a forensic approach to ensure the threat cannot re-establish control.
Malware & Ransomware
Early Warning Signs of Ransomware-as-a-Service Attacks
Ransomware-as-a-service operators use modular architecture to split responsibilities, creating distinct network signatures for encryption and data exfiltration that standard antivirus often misses.
Malware & Ransomware
Reimaging Infected Computers: The Only Way to Guarantee Clean Systems
You will learn why wiping and reinstalling the operating system is the only method that removes hidden rootkits and persistent malware.
