Latest Cybersecurity News and Articles

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Europol Dismantles SIM Farm Network Powering 49 Million Fake Accounts Worldwide

Europol on Friday announced the disruption of a sophisticated cybercrime-as-a-service (CaaS) platform that operated a SIM farm and enabled its customers to carry out a broad spectrum of crimes ranging from phishing to investment fraud. The coordinated law enforcement effort, dubbed Operation SIMCARTEL, saw 26 searches carried out, resulting in the arrest of seven suspects and the seizure of

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New .NET CAPI Backdoor Targets Russian Auto and E-Commerce Firms via Phishing ZIPs

Cybersecurity researchers have shed light on a new campaign that has likely targeted the Russian automobile and e-commerce sectors with a previously undocumented .NET malware dubbed CAPI Backdoor. According to Seqrite Labs, the attack chain involves distributing phishing emails containing a ZIP archive as a way to trigger the infection. The cybersecurity company's analysis is based on the ZIP

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Silver Fox Expands Winos 4.0 Attacks to Japan and Malaysia via HoldingHands RAT

The threat actors behind a malware family known as Winos 4.0 (aka ValleyRAT) have expanded their targeting footprint from China and Taiwan to target Japan and Malaysia with another remote access trojan (RAT) tracked as HoldingHands RAT (aka Gh0stBins). "The campaign relied on phishing emails with PDFs that contained embedded malicious links," Pei Han Liao, researcher with Fortinet's FortiGuard

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Microsoft: Russia, China Increasingly Using AI to Escalate Cyberattacks on the US

The U.S. is the top target for cyberattacks, with criminals and foreign adversaries targeting companies, governments and organizations. The post Microsoft: Russia, China Increasingly Using AI to Escalate Cyberattacks on the US appeared first on SecurityWeek.

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Security Leaders Share Why 77% Organizations Lose Data Due to Insider Risks

77% of organizations have experienced insider-related data loss in the last 18 months.

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In Other News: CrowdStrike Vulnerabilities, CISA Layoffs, Mango Data Breach

Other noteworthy stories that might have slipped under the radar: Capita fined £14 million, ICTBroadcast vulnerability exploited, Spyware maker NSO acquired. The post In Other News: CrowdStrike Vulnerabilities, CISA Layoffs, Mango Data Breach appeared first on SecurityWeek.

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North Korean Hackers Combine BeaverTail and OtterCookie into Advanced JS Malware

The North Korean threat actor linked to the Contagious Interview campaign has been observed merging some of the functionality of two of its malware programs, indicating that the hacking group is actively refining its toolset. That's according to new findings from Cisco Talos, which said recent campaigns undertaken by the hacking group have seen the functions of BeaverTail and OtterCookie coming

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Over $3 Million in Prizes Offered at Pwn2Own Automotive 2026

Set for January 2026 at Automotive World in Tokyo, the contest will have six categories, including Tesla, infotainment systems, EV chargers, and automotive OSes. The post Over $3 Million in Prizes Offered at Pwn2Own Automotive 2026 appeared first on SecurityWeek.

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Email Bombs Exploit Lax Authentication in Zendesk

Cybercriminals are abusing a widespread lack of authentication in the customer service platform Zendesk to flood targeted email inboxes with menacing messages that come from hundreds of Zendesk corporate customers simultaneously.

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Hackers Steal Sensitive Data From Auction House Sotheby’s

Sotheby's has disclosed a data breach impacting personal information, including SSNs. The post Hackers Steal Sensitive Data From Auction House Sotheby’s appeared first on SecurityWeek.

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Identity Security: Your First and Last Line of Defense

The danger isn’t that AI agents have bad days — it’s that they never do. They execute faithfully, even when what they’re executing is a mistake. A single misstep in logic or access can turn flawless automation into a flawless catastrophe. This isn't some dystopian fantasy—it's Tuesday at the office now. We've entered a new phase where autonomous AI agents act with serious system privileges. They

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‘Highest Ever’ Severity Score Assigned by Microsoft to ASP.NET Core Vulnerability

CVE-2025-55315 is an HTTP request smuggling bug leading to information leaks, file content tampering, and server crashes. The post ‘Highest Ever’ Severity Score Assigned by Microsoft to ASP.NET Core Vulnerability appeared first on SecurityWeek.

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Researchers Uncover WatchGuard VPN Bug That Could Let Attackers Take Over Devices

Cybersecurity researchers have disclosed details of a recently patched critical security flaw in WatchGuard Fireware that could allow unauthenticated attackers to execute arbitrary code. The vulnerability, tracked as CVE-2025-9242 (CVSS score: 9.3), is described as an out-of-bounds write vulnerability affecting Fireware OS 11.10.2 up to and including 11.12.4_Update1, 12.0 up to and including

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Prosper Data Breach Impacts 17.6 Million Accounts

Hackers stole names, addresses, dates of birth, email addresses, Social Security numbers, government IDs, and other information. The post Prosper Data Breach Impacts 17.6 Million Accounts appeared first on SecurityWeek.

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Vulnerabilities Allow Disruption of Phoenix Contact UPS Devices

An attacker can exploit the flaws to put devices into a permanent DoS condition that prevents remote restoration. The post Vulnerabilities Allow Disruption of Phoenix Contact UPS Devices appeared first on SecurityWeek.

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Gladinet Patches Exploited CentreStack Vulnerability

The unauthenticated local file inclusion bug allows attackers to retrieve the machine key and execute code remotely via a ViewState deserialization issue. The post Gladinet Patches Exploited CentreStack Vulnerability appeared first on SecurityWeek.

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Microsoft Revokes 200 Fraudulent Certificates Used in Rhysida Ransomware Campaign

Microsoft on Thursday disclosed that it revoked more than 200 certificates used by a threat actor it tracks as Vanilla Tempest to fraudulently sign malicious binaries in ransomware attacks. The certificates were "used in fake Teams setup files to deliver the Oyster backdoor and ultimately deploy Rhysida ransomware," the Microsoft Threat Intelligence team said in a post shared on X. The tech

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North Korean Hackers Use EtherHiding to Hide Malware Inside Blockchain Smart Contracts

A threat actor with ties to the Democratic People's Republic of Korea (aka North Korea) has been observed leveraging the EtherHiding technique to distribute malware and enable cryptocurrency theft, marking the first time a state-sponsored hacking group has embraced the method. The activity has been attributed by Google Threat Intelligence Group (GTIG) to a threat cluster it tracks as UNC5342,

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Hackers Abuse Blockchain Smart Contracts to Spread Malware via Infected WordPress Sites

A financially motivated threat actor codenamed UNC5142 has been observed abusing blockchain smart contracts as a way to facilitate the distribution of information stealers such as Atomic (AMOS), Lumma, Rhadamanthys (aka RADTHIEF), and Vidar, targeting both Windows and Apple macOS systems. "UNC5142 is characterized by its use of compromised WordPress websites and 'EtherHiding,' a technique used

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Microsoft Revokes Over 200 Certificates to Disrupt Ransomware Campaign

The tech giant attributed the attacks to Vanilla Tempest, also known as Vice Spider and Vice Society. The post Microsoft Revokes Over 200 Certificates to Disrupt Ransomware Campaign appeared first on SecurityWeek.