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Cognizant TriZetto breach exposes health data of 3.4 million patients

TriZetto Provider Solutions, a healthcare IT company that develops software and services used by health insurers and healthcare providers, has suffered a data breach that exposed the sensitive information of over 3.4 million people. [...]

https://www.bleepingcomputer.com/news/security/cognizant-trizetto-breach-exposes-health-data-of-34-million-patients/
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Microsoft: Hackers abusing AI at every stage of cyberattacks

Microsoft says threat actors are increasingly using artificial intelligence in their operations to accelerate attacks, scale malicious activity, and lower technical barriers across all aspects of a cyberattack. [...]

https://www.bleepingcomputer.com/news/security/microsoft-hackers-abusing-ai-at-every-stage-of-cyberattacks/
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Termite ransomware breaches linked to ClickFix CastleRAT attacks

Ransomware threat actors tracked as Velvet Tempest are using the ClickFix technique and legitimate Windows utilities to deploy the DonutLoader malware and the CastleRAT backdoor. [...]

https://www.bleepingcomputer.com/news/security/termite-ransomware-breaches-linked-to-clickfix-castlerat-attacks/
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Hackers abuse .arpa DNS and ipv6 to evade phishing defenses

Threat actors are abusing the special-use ".arpa" domain and IPv6 reverse DNS in phishing campaigns that more easily evade domain reputation checks and email security gateways. [...]

https://www.bleepingcomputer.com/news/security/hackers-abuse-arpa-dns-and-ipv6-to-evade-phishing-defenses/
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EU court adviser says banks must immediately refund phishing victims

Athanasios Rantos, the Advocate General of the Court of Justice of the EU (CJEU), has issued a formal opinion suggesting that banks must immediately refund account holders affected by unauthorized transactions, even when it's their fault. [...]

https://www.bleepingcomputer.com/news/legal/eu-court-adviser-says-banks-must-immediately-refund-phishing-victims/
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Microsoft still working to fix Windows Explorer white flashes

Microsoft has confirmed that it's still working to fully address a known issue that causes bright white flashes when opening the File Explorer on some Windows 11 systems. [...]

https://www.bleepingcomputer.com/news/microsoft/microsoft-still-working-to-fix-windows-explorer-white-flashes/
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Why Password Audits Miss the Accounts Attackers Actually Want

Password audits often focus on complexity rules but miss the accounts attackers actually target. Specops Software explains how breached passwords, orphaned users, and service accounts can leave organizations exposed. [...]

https://www.bleepingcomputer.com/news/security/why-password-audits-miss-the-accounts-attackers-actually-want/
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FBI warns of phishing attacks impersonating US city, county officials

The Federal Bureau of Investigation (FBI) warns that criminals are impersonating U.S. officials in phishing attacks targeting businesses and individuals who request city and county planning and zoning permits. [...]

https://www.bleepingcomputer.com/news/security/fbi-warns-of-phishing-attacks-impersonating-us-city-county-officials/
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ShinyHunters claims ongoing Salesforce Aura data theft attacks

Salesforce is warning customers that hackers are targeting websites with misconfigured Experience Cloud platforms that give guest users access to more data than intended. However, the ShinyHunters extortion gang claims to be actively exploiting a new bug to steal data from instances. [...]

https://www.bleepingcomputer.com/news/security/shinyhunters-claims-ongoing-salesforce-aura-data-theft-attacks/
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Ericsson US discloses data breach after service provider hack

Ericsson Inc., the U.S. subsidiary of Swedish networking and telecommunications giant Ericsson, says attackers have stolen data belonging to an undisclosed number of employees and customers after hacking one of its service providers. [...]

https://www.bleepingcomputer.com/news/security/ericsson-us-discloses-data-breach-after-service-provider-hack/
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Dutch govt warns of Signal, WhatsApp account hijacking attacks

Russian state-sponsored hackers have been linked to an ongoing Signal and WhatsApp phishing campaign targeting government officials, military personnel, and journalists to gain access to sensitive messages. [...]

https://www.bleepingcomputer.com/news/security/dutch-govt-warns-of-signal-whatsapp-account-hijacking-attacks/
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Google: Cloud attacks exploit flaws more than weak credentials

Hackers are increasingly exploiting newly disclosed vulnerabilities in third-party software to gain initial access to cloud environments, with the window for attacks shrinking from weeks to just days. [...]

https://www.bleepingcomputer.com/news/security/google-cloud-attacks-exploit-flaws-more-than-weak-credentials/
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Microsoft Teams phishing targets employees with backdoors

Hackers contacted employees at financial and healthcare organizations over Microsoft Teams to trick them into granting remote access through Quick Assist and deploy a new piece of malware called A0Backdoor. [...]

https://www.bleepingcomputer.com/news/security/microsoft-teams-phishing-targets-employees-with-backdoors/
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Microsoft to enable Windows hotpatch security updates by default

Microsoft will turn on hotpatch security updates by default for all eligible Windows devices managed through Microsoft Intune and the Microsoft Graph API, beginning with the May 2026 Windows security update. [...]

https://www.bleepingcomputer.com/news/microsoft/microsoft-to-enable-hotpatch-security-updates-by-default-in-may/
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CISA: Recently patched Ivanti EPM flaw now actively exploited

CISA flagged a high-severity Ivanti Endpoint Manager (EPM) vulnerability as actively exploited in attacks and ordered U.S. federal agencies to patch systems within three weeks. [...]

https://www.bleepingcomputer.com/news/security/cisa-recently-patched-ivanti-epm-flaw-now-actively-exploited/
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The New Turing Test: How Threats Use Geometry to Prove 'Humanness'

Malware is evolving to evade sandboxes by pretending to be a real human behind the keyboard. The Picus Red Report 2026 shows 80% of top attacker techniques now focus on evasion and persistence, including geometry-based cursor tests and CPU timing checks. [...]

https://www.bleepingcomputer.com/news/security/the-new-turing-test-how-threats-use-geometry-to-prove-humanness/
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HPE warns of critical AOS-CX flaw allowing admin password resets

Hewlett Packard Enterprise (HPE) has patched multiple security vulnerabilities in the Aruba Networking AOS-CX operating system, including several authentication and code execution issues. [...]

https://www.bleepingcomputer.com/news/security/hpe-warns-of-critical-aos-cx-flaw-allowing-admin-password-resets/
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