The Hacker News | #1 Trusted Source for Cybersecurity News — Index Page

The Computer Emergency Response Team of Ukraine (CERT-UA) has disclosed details of a new social engineering campaign orchestrated by Russian nation-state threat actors targeting IT workers in the country by masquerading as recruiters to trick them into installing malware. CERT-UA pinned the activity on a threat cluster it tracks as UAC-0145 , which is a subgroup within Sandworm (aka APT44, Seashell Blizzard, and UAC-0002), a sophisticated hacking group affiliated with the GRU. The campaign is assessed to be ongoing since May 2026. "Specifically, on job search websites, after reviewing a candidate's resume, the attackers contact a potential victim – typically a system administrator or IT specialist – on behalf of an IT company (such as ATLAS Business Group)," CERT-UA said .  Although initial communications take place via built-in online chat, the conversation subsequently shifts to messaging apps like Telegram, where a preliminary chat takes place with a purported H...

Security researchers found a way to enter Microsoft SharePoint servers as any user, including an administrator, with no valid account. A significant part of the work that found it was done through an AI agent. The flaw, tracked as  CVE-2026-55040  (CVSS 9.1), affects SharePoint Server Subscription Edition, SharePoint Server 2019, and SharePoint Server 2016. Microsoft's affected-product list covers only those three on-premises editions, and SharePoint Online is not among them. It lets a remote unauthenticated attacker assume a chosen user's identity. The attack has one prerequisite: the intruder has to know which account they want to become, either by its Active Directory security identifier (SID) or its user principal name (UPN), which is formatted like an email address. Rapid7 then chained the bypass to a separate remote code execution flaw and ran code on the server with no credentials. Microsoft and the firm disclosed that second flaw on August 11 as  CVE-2026...

The ransomware group known as DeadLock has been observed using decentralized infrastructure to facilitate victim communications and data leak operations in a bid to improve operational resilience. "Its recovery ecosystem combines the Session messaging network with blockchain-backed services that store and deliver resources used throughout the extortion process," the Microsoft Threat Intelligence team said . The tech giant said it observed the ransomware being deployed by multiple threat actors, including an affiliate for Lynx and INC ransomware. DeadLock was first detected in July 2025, employing double extortion tactics to encrypt victim environments and apply pressure by threatening to publicly release exfiltrated data. As of this month, the group has claimed 96 victims , with most of them located in Italy, Spain, Poland, Türkiye, and the U.S. In an analysis published earlier this January, Singapore-headquartered Group-IB said the group has managed to keep a lowe...

OpenAI on Monday unveiled a new cybersecurity-focused model called GPT‑5.6‑Cyber that it said is focused on vulnerability research, penetration testing, and incident response. "Built on GPT‑5.6 Sol, it is trained to improve capabilities on several specialized cybersecurity tasks (e.g., finding zero-day vulnerabilities and developing exploit chains) and to reduce refusals for certain higher-risk, dual-use cyber tasks," OpenAI said . The artificial intelligence (AI) company said it's making GPT 5.6 Cyber available through Daybreak Red, a new tier that provides access to its purpose-trained cybersecurity models to other firms for authorized vulnerability research, exploit validation, and security testing. GPT-5.6-Cyber, a more cyber-permissive version of GPT-5.6 Sol, builds upon GPT‑5.5‑Cyber , which OpenAI released in June 2026. To measure the reduced rate of refusals provided by GPT‑5.6‑Cyber through Daybreak Red access, OpenAI said it created an internal evaluat...

A malicious SIM card can order the device it sits in to run commands of the attacker's choosing. On the cellular modules built into electric-vehicle chargers, industrial routers, and car telematics units, that is enough to take the whole device over. Researchers at the University of Birmingham and the security firm Fuzzware tested 26 phones and cellular modules for the capability, found it switched on in 9 of them, and used it to run their own code on a commercial EV charger. Six of the eight cellular modules they tested accepted the command. Only 3 of 18 phones did: the OPPO Find X5, the OPPO Reno 14 F 5G, and the ASUS Zenfone 9. No iPhone or Pixel was among them. The exposure is in machine-to-machine hardware. Five of the six were Quectel parts, three of them pulled from an EV charger, an industrial router, and a car's telematics control unit. Knowing the victim's number is not enough: every attack starts with a hostile card already in the slot, swapped by hand,...