Latest cybersecurity reporting from selected sources.

Storm-2949 turned stolen credentials into a cloud-wide breach, moving from identity compromise to large-scale data theft without using malware. This incident shows how threat actors can exploit trusted systems to operate undetected. The post How Storm-2949 turned a compromised identity into a cloud-wide breach appeared first on Microsoft Security Blog.

Cloud app developer Vercel appears to have suffered a security breach

Ransomware groups are targeting hypervisors to maximize impact, allowing a single breach to encrypt dozens of virtual machines at once. Drawing on real-world incident data, Huntress explains how attackers exploit visibility gaps at the hypervisor layer and outlines steps orgs can take to harden virtualization infrastructure. [...]

Also: DSLRoot Turns Homes Into Proxies, Cyberattack Disrupts Swedish TownsThis week: TransUnion incident affects 4.5 million, DSLRoot residential proxies, Operation Serengeti 2.0, ZipLine campaign exploits contact forms, a cyberattack disrupts 200 Swedish municipalities, Maryland Transit Administration hit by ransomware, TAG-144 escalated attacks in South America.

Former Business Partner's Third-Party Software at Center of Hospital Chain's IncidentAscension Health is notifying nearly 440,000 patients of a breach involving a former business partner and exploit of a third-party software flaw. Some experts speculate the incident involved Cleo managed file transfer software. The breach is one of several Ascension experienced in recent months.

Cloud services provider Rackspace on Thursday confirmed that the ransomware gang known as Play was responsible for last month's breach