Latest cybersecurity reporting from selected sources.

Researchers compiled a list of 3.5 billion WhatsApp mobile phone numbers and associated personal information by abusing a contact-discovery API that lacked rate limiting. [...]

Cox Enterprises is notifying impacted individuals of a data breach that exposed their personal data to hackers who breached the company network after exploiting a zero-day flaw in Oracle E-Business Suite. [...]

Huntress analysts reconstructed a Qilin ransomware attack from a single endpoint, using limited logs to reveal rogue ScreenConnect access, failed infostealer attempts, and the ransomware execution path. The investigation shows how validating multiple data sources can uncover activity even when visibility is reduced to a "pinhole." [...]

The U.S. Cybersecurity & Infrastructure Security Agency (CISA) is warning government agencies to patch an Oracle Identity Manager tracked as CVE-2025-61757 that has been exploited in attacks, potentially as a zero-day. [...]

Nvidia has confirmed that last month's security updates are causing gaming performance issues on Windows 11 24H2 and Windows 11 25H2 systems. [...]

Microsoft has released an out-of-band cumulative update to fix a known issue causing the November 2025 KB5068966 hotpatch update to reinstall on Windows 11 systems repeatedly. [...]

Grafana Labs is warning of a maximum severity vulnerability (CVE-2025-41115) in its Enterprise product that can be exploited to treat new users as administrators or for privilege escalation. [...]

American cybersecurity firm CrowdStrike has confirmed that an insider shared screenshots taken on internal systems with unnamed threat actors. [...]

The Federal Communications Commission (FCC) has rolled back a previous ruling that required U.S. telecom carriers to implement stricter cybersecurity measures following the massive hack from the Chinese threat group known as Salt Typhoon. [...]

Two British teenagers have denied charges related to an investigation into the breach of Transport for London (TfL) in August 2024, which caused millions of pounds in damage and exposed customer data. [...]

Avast is rolling out Scam Guardian, a free AI-powered protection layer that analyzes websites, messages, and links to detect rising scam threats. Powered by Gen Threat Labs data, it reveals hidden dangers in code and adds 24/7 scam guidance through the Avast Assistant. [...]

Google has started rolling out ads in AI mode, which is the company's "answer engine," not a search engine. [...]

China-linked APT24 hackers have been using a previously undocumented malware called BadAudio in a three-year espionage campaign that recently switched to more sophisticated attack methods. [...]

Data from Italy's national railway operator, the FS Italiane Group, has been exposed after a threat actor breached the organization's IT services provider, Almaviva. [...]

Data from Italy's national railway operator, the FS Italiane Group, has been exposed after a threat actor breached the organization's IT services provider, Almaviva. [...]

A major spike in malicious scanning against Palo Alto Networks GlobalProtect portals has been detected, starting on November 14, 2025. [...]

Salesforce says it revoked refresh tokens linked to Gainsight-published applications while investigating a new wave of data theft attacks targeting customers. [...]

American cybersecurity company SonicWall urged customers today to patch a high-severity SonicOS SSLVPN security flaw that can allow attackers to crash vulnerable firewalls. [...]

D-Link is warning of three remotely exploitable command execution vulnerabilities that affect all models and hardware revisions of its DIR-878 router, which has reached end-of-service but is still available in several markets. [...]

Windows 11 migration is inevitable as Windows 10 support ends, and unsupported systems create major security and ransomware risks. Acronis explains how to use this migration to review backups, strengthen cybersecurity, and ensure data stays recoverable. [...]