Hertz data breach caused by CL0P ransomware attack on vendor

The Hertz Corporation, on behalf of Hertz, Dollar, and Thrifty brands, is sending breach notifications to customers who may have had their name, contact information, driver's license, and—in rare cases—Social Security Number exposed in a data breach. The car rental giant’s data was stolen in a...

Medusa Ransomware Claims NASCAR Breach in Latest Attack

Medusa ransomware hits NASCAR, demands $4M ransom, leaks internal files. Group also claims Bridgebank, McFarland, and Pulse Urgent Care...

Cloak Ransomware Hits Virginia Attorney General’s Office, Disrupts IT Systems

Cloak ransomware group claims attack on Virginia attorney general's office, demands ransom for stolen data. Investigation underway. Find out the impact and what's being done...

Live Ransomware Demo: See How Hackers Breach Networks and Demand a Ransom

Cyber threats evolve daily. In this live webinar, learn exactly how ransomware attacks unfold—from the initial breach to the moment hackers demand payment. Join Joseph Carson, Delinea's Chief Security Scientist and Advisory CISO, who brings 25 years of enterprise security expertise. Through a liv...

Tata Technologies Hit by Hunters International Ransomware, 1.4TB Data at Risk

Tata Technologies hit by Hunters International ransomware attack. The group threatened to leak 1.4TB of data. Learn about…...

Becoming Ransomware Ready: Why Continuous Validation Is Your Best Defense

Ransomware doesn't hit all at once—it slowly floods your defenses in stages. Like a ship subsumed with water, the attack starts quietly, below the surface, with subtle warning signs that are easy to miss. By the time encryption starts, it's too late to stop the flood. Each stage of a ransomware...

Ransomware Targets ESXi Systems via Stealthy SSH Tunnels for C2 Operations

Cybersecurity researchers have found that ransomware attacks targeting ESXi systems are also leveraging the access to repurpose the appliances as a conduit to tunnel traffic to command-and-control C2 infrastructure and stay under the radar. "ESXi appliances, which are unmonitored, are increasingl...

UnitedHealth almost doubles victim numbers from massive Change Healthcare data breach

UnitedHealth says it now estimates that the data breach on its subsidiary Change Healthcare affected 190 million people, nearly doubling its previous estimate from October. In May, UnitedHealth CEO Andrew Witty estimated that the ransomware attack compromised the data of a third of US individuals...

UnitedHealth Group’s Massive Data Breach Impacts 190 Million Americans

UnitedHealth Group has confirmed that a ransomware attack targeted its subsidiary, Change Healthcare, in February 2024, impacting 190…...

A week in security (January 6 – January 12)

Last week on Malwarebytes Labs: Dental group lied through teeth about data breach, fined $350,000 AI-supported spear phishing fools more than 50% of targets US Cyber Trust Mark logo for smart devices is coming GroupGreeting e-card site attacked in "zqxq" campaign Massive breach at location data...

BayMark Health Services sends breach notifications after ransomware attack

BayMark Health Services, Inc. BayMark notified an unknown number of patients that attackers stole their personal and health information. BayMark profiles itself as North America’s largest provider of medication-assisted treatment MAT for substance use disorders helping tens of thousands of...

Dental group lied through teeth about data breach, fined $350,000

A US chain of dental offices known as Westend Dental LLC denied a 2020 ransomware attack and its associated data breach, instead telling their customers that data was lost due to an “accidentally formatted hard drive.” Unfortunately for the organization, the truth was found out. Westend Dental...

Telecom Giant BT Group Hit by Black Basta Ransomware

BT Group, a major telecommunications firm, has been hit by a ransomware attack from the Black Basta group. The attack targeted the company's Conferencing division, leading to server shutdowns and potential data theft...

No company too small for Phobos ransomware gang, indictment reveals

The US Department of Justice has charged a Russian national named Evgenii Ptitsyn with selling, operating, and distributing a ransomware variant known as “Phobos” during a four-year cybercriminal campaign that extorted at least $16 million from victims across the world. The government’s indictmen...

Starbucks Shifts to Manual Processes After Contractor Ransomware Attack

Ransomware attack cripples Starbucks operations, forcing the coffee giant to rely on manual processes for employee scheduling and…...

Why your vote can’t be “hacked,” with Cait Conley of CISA (Lock and Code S05E23)

This week on the Lock and Code podcast … The US presidential election is upon the American public, and with it come fears of "election interference." But "election interference" is a broad term. It can mean the now-regular and expected foreign disinformation campaigns that are launched to sow...

City of Columbus breach affects around half a million citizens

A ransomware attack against the City of Columbus, Ohio—which drew public scrutiny following the city government's attempt to silence a researcher who told the public about the attack—has received a little more detail from an unexpected source: The Attorney General for the state of Maine. In a dat...

Change Healthcare Breach Hits 100M Americans

Change Healthcare says it has notified approximately 100 million Americans that their personal, financial and healthcare records may have been stolen in a February 2024 ransomware attack that caused the largest ever known data breach of protected health information. Image: Tamer Tuncay,...

100 million US citizens officially impacted by Change Healthcare data breach

In April, we reported that a “substantial proportion” of Americans may have had their health and personal data stolen in the Change Healthcare breach. That was based on a report provided by the UnitedHealth Group after the February cyberattack on its subsidiary Change Healthcare. The attack on...

Security Researcher Sued for Disproving Government Statements

This story seems straightforward. A city is the victim of a ransomware attack. They repeatedly lie to the media about the severity of the breach. A security researcher repeatedly proves their statements to be lies. The city gets mad and sues the researcher. Lets hope the judge throws the case out...