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CISA issues warning over Medusa ransomware after 300 victims from critical sectors impacted
CISA has issued an alert over ongoing activity linked to the Medusa ransomware as a service (RaaS) group, warning it has impacted hundreds of critical organizations. The agency issued a joint advisory alongside the FBI and the Multi-State Information Sharing and Analysis Center (MS-ISAC), stating that as of February 2025 Medusa developers and affiliates had hit over 300 victims in…
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More than 300,000 US healthcare patients impacted in suspected Rhysida cyber attacks
Two US healthcare organizations have warned threat actors were able to breach their internal systems, exposing more than 300,000 individuals. On 7 March 2025, Kansas-based healthcare provider Sunflower Medical Group published an alert stating that over 220,000 patients had their personally identifiable information (PII) accessed in a data breach. An advisory published by the firm revealed it discovered suspicious activity…
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Microsoft says malvertising campaign impacted 1 million PCs
Microsoft has taken down an undisclosed number of GitHub repositories used in a massive malvertising campaign that impacted almost one million devices worldwide. The company’s threat analysts detected these attacks in early December 2024 after observing multiple devices downloading malware from GitHub repos, malware that was later used to deploy a string of various other payloads on compromised systems. After…
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US drug testing firm says data breach impacted 3.3 million people
DISA Global Solutions, a leading US background screening and drug and alcohol testing firm, has suffered a data breach impacting 3.3 million people. In January, the company first disclosed a cybersecurity incident that occurred between February 9, 2024, and April 22, 2024, the day it discovered the breach. In an update earlier this month, DISA revealed that the threat actors…
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UnitedHealth reveals 190 million US citizens were impacted by the Change Healthcare breach
UnitedHealth has confirmed that the total number of customers impacted by last year’s Change Healthcare breach is far higher than previously thought. 190 million US citizens are now expected to have been impacted by the attack, equivalent to well over half of the US population. Previous estimates suggested that the total victims represented a third of the population. “The vast…
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UnitedHealth now says 190 million impacted by 2024 data breach
UnitedHealth has revealed that 190 million Americans had their personal and healthcare data stolen in the Change Healthcare ransomware attack, nearly doubling the previously disclosed figure. In October, UnitedHealth reported to the US Department of Health and Human Services Office for Civil Rights that the attack affected 100 million people. However, as first reported by TechCrunch, UnitedHealth confirmed on Friday that…
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Nearly all of the top US banks were impacted by third party breaches last year
Virtually all of the top 100 US banks were hit by third party data breaches last year, including every one of the top ten. Research from SecurityScorecard found 97% of firms reported third-party breaches across the year, although only 6% of vendors were compromised. A similar number also suffered fourth-party breaches, traced back to just 2% of vendors. Ryan Sherstobitoff,…
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Intel, AMD CPUs on Linux impacted by newly disclosed Spectre bypass
The latest generations of Intel processors, including Xeon chips, and AMD’s older microarchitectures on Linux are vulnerable to new speculative execution attacks that bypass existing ‘Spectre’ mitigations. The vulnerabilities impact Intel’s 12th, 13th, and 14th chip generations for consumers and the 5th and 6th generation of Xeon processors for servers, along with AMD’s Zen 1, Zen 1+, and Zen 2 processors.…
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