Ransomware encrypts or steals data to disrupt operations and extort victims, making backups, access controls, and incident response essential.
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Background for this topic.
Ransomware is malware used to deny access to systems or data, usually by encrypting files and demanding payment for decryption. Many operations also steal sensitive information and threaten to publish it, so an attack can create both an availability crisis and a privacy or disclosure risk. Initial access may involve phishing, stolen credentials, exposed remote services, or exploitation of unpatched vulnerabilities; attackers may then move through the network before deploying the payload.
Defenses should combine vulnerability management, phishing-resistant authentication where practical, endpoint and network monitoring, and backups that are isolated from routine administrator access and regularly tested for recovery. Organizations should also limit privileges and segment critical systems to reduce the blast radius. An incident requires rapid containment, preservation of forensic evidence, restoration from known-good backups, and assessment of notification, legal, and regulatory obligations. Threat intelligence can help identify relevant criminal infrastructure or tactics, but it does not replace sound access control, patching, detection, and recovery practices.
Three international vehicle manufacturers have fallen to supply chain cyberattacks in the past month alone.
Operation Cronos didn’t kill LockBit – it just came back meaner Trend Micro has sounded the alarm over the new LockBit 5.0 ransomware strain, which it warns is "significantly more dangerous" than past versions due to its newfound ability to simultaneously target Windows, Linux, and VMware ESXi environments. …
The downstream consequences of Miljödata’s ransomware attack continue to affect major organizations Volvo North America is the latest large organization to announce attackers accessed employee data after a ransomware attack struck its HR system provider.…
Cybersecurity company watchTowr Labs has disclosed that it has "credible evidence" of active exploitation of the recently disclosed security flaw in Fortra GoAnywhere Managed File Transfer (MFT) software as early as September 10, 2025, a whole week before it was publicly disclosed
Trend Micro highlighted the new LockBit version’s improved technical improvements and cross-platform functionality compared to previous iterations
The UK’s National Crime Agency has arrested a suspect in connection with a ransomware attack on Collins Aerospace
Trend™ Research analyzed source binaries from the latest activity from notorious LockBit ransomware with their 5.0 version that exhibits advanced obfuscation, anti-analysis techniques, and seamless cross-platform capabilities for Windows, Linux, and ESXi systems.
Huntress analysts discovered a previously unseen ransomware variant, Obscura, spreading from a victim company's domain controller. Learn how Obscura works—and what it means for defenders—in this week's Tradecraft Tuesday. [...]
The UK's National Crime Agency has arrested a suspect linked to a ransomware attack that is causing widespread disruptions across European airports. [...]
After air passenger travel hit across the Atlantic, organized crime agency strikes Breaking The UK's National Crime Agency has arrested a man as part of an investigation into a ransomware attack that disrupted airports around the world last weekend.…
Bayhealth Medical Center Was Among Cybercrime Group's Many 2024 Healthcare VictimsBayhealth Medical Center in Delaware - an alleged victim of a 2024 hack by the "notorious" and prolific ransomware gang Rhysida that resulted in a breach affecting nearly a half-million people - has agreed to a preliminary settlement in a proposed class action lawsuit stemming from the incident.
What's Left After Raking In Millions From Other People's Blood, Sweat and Tears?Things that continue to elude scientific observation: the Loch Ness Monster, Bigfoot and the ransomware hacker who voluntarily chose retirement. "There's no such thing as 'retirement' in cybercrime," despite some ransomware hackers dangling promises to leave the field.
Now-Dormant Gang Claimed North Carolina, Florida Groups on Data Leak Site This YearTwo medical practices - in North Carolina and Florida - are notifying a total of more than 700,000 patients whose information was potentially stolen in separate hacks earlier this year. The now-dormant ransomware gang BianLian had claimed both organizations as victims on its dark website.
The disruptions over the weekend at several major European airports were caused by a ransomware attack targeting the check-in and boarding systems. [...]
Major European Airports Continue to Face Service Disruptions Following Friday HackEuropean cyber defenders classified as a ransomware attack an incident that disrupted several major European airports including London Heathrow resulting in flight cancelations and delays over the weekend and Monday.
Juvenile Male Tied to Hack Attacks Against MGM Resorts and Caesars EntertainmentThe net continues to close on suspected members of the notorious ransomware-wielding group called Scattered Spider, with Las Vegas police announcing the arrest of a teenage, juvenile male suspect tied to 2023 attacks that hit MGM Resorts and Caesars Entertainment.
Airport staff revert to manual ops as travellers urged to use self-service check-in where possible The EU's cybersecurity agency today confirmed that ransonmware is the cause of continued disruption blighting major airports across Europe.…
PLUS: Luxury brands under fire; FBI warns crims are spoofing it again; ICE buys phone cracking software Infosec in brief Online criminals prefer to deal in digital assets, but a side effect of a ransomware attack has seen a French museum robbed of $705,000 in physical gold nuggets.…