OpenAI has parted ways with three members of its safety team after they leaked private information in violation of company policies, The Wall Street…
Tag: The Hacker News
US-Focused CSuite Phishing Steals Microsoft 365 Sessions and Deploys RMM Tools for Remote Access
ANY.RUN researchers traced a US-focused CSuite phishing campaign across 351 sandbox analyses, with 51% of submissions coming from the United States.…
Why CISOs Struggle to Answer the Board’s Three Hardest Questions, and How to Fix the Report
The quarterly board meeting is two weeks out. The security team is pulling exports from the identity provider, the cloud posture tool, the vulnerability…
Attackers Exploit NetScaler Flaw for Root Access, Deploy WHIPSHOT and SLAPSHOT
Unknown threat actors have been observed exploiting a newly patched security flaw in Citrix NetScaler ADC and NetScaler Gateway appliances to target…
OpenSSL Fixes High-Severity DTLS Flaw That Can Leak Heap Memory Unencrypted
A High-severity OpenSSL flaw can leak heap memory to the other side of a DTLS connection or crash the program, OpenSSL said on September 29 as it released…
Citrix NetScaler CVE-2026-88772 Exploit Details Show Pre-Auth Path to Shellcode Execution
Cybersecurity researchers have disclosed technical details of a recently patched critical security flaw in Citrix NetScaler ADC and Gateway that has come…
Android 17 Advanced Protection Locks Accessibility Services to Verified Accessibility Tools
Google has announced a new security measure that limits access to Android’s accessibility services to verified applications classified as Accessibility…
Critical FortiMail Zero-Day Flaw Exploited in Attacks Allows Unauthenticated Arbitrary File Writes
The U.S. Cybersecurity and Infrastructure Security Agency (CISA), on Thursday, added a critical security flaw impacting Fortinet FortiMail to its Known…
Police Arrest 16-Year-Old Suspected of Running KillSec, Seize Ransomware Leak Site and Servers
Police in Spain have arrested a 16-year-old whom investigators suspect of running the KillSec ransomware group. KillSec is accused of stealing data from…
Dutch Police Arrest 24-Year-Old Amsterdam Man in ShinyHunters Investigation
Dutch authorities have confirmed that they arrested a 24-year-old man from Amsterdam in connection with the ShinyHunters group. “It is true that this…
ThreatsDay: AI-Powered Zero-Day Chain, 543K Live Secrets, Model Inspection RCE and 13 More Stories
This week, the useful words are boring ones: inspect, cache, compile, store, trust. Each sounds harmless. Each can become an attack path when a system…
Official MCP Python SDK Flaw Can Let Malicious Servers Steal OAuth Credentials
A malicious MCP server could trick an application built on the official MCP Python SDK into handing over the OAuth credentials it uses to log in to a real…
OpenAI Shelves GPT-6.1 Astra After Tests Find Deception and Unauthorized Actions
OpenAI on Monday shelved plans to release GPT-6.1 Astra, a next-generation artificial intelligence (AI) model that was planned for an October launch,…
OpenAI Pauses Tool Use After Agent Bypasses Internet Controls to Reach External Chatbot
OpenAI said it has made the decision to pause training of its most powerful models after one of its agents during reinforcement learning (RL) training…
WordPress Backdoor Rebuilds Itself After Cleanup Using Files, Database, and Shared Memory
Cybersecurity researchers have shed light on a WordPress compromise in which threat actors deployed multiple persistence mechanisms to ensure that the…
How Financial Services Companies Can Modernize Their Software Supply Chain
Every security leader at a bank, insurer, or asset manager has had a version of this conversation: Security wants to eliminate a class of vulnerabilities.…
OpenAI Disrupts Reasoning Extraction Campaign Linked to Moonshot AI Associates
OpenAI on Wednesday said it identified and disrupted a coordinated distillation campaign that was designed to illicitly extract protected reasoning from…
CISA Adds Exploited Cisco Catalyst SD-WAN Manager Auth Bypass to KEV
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a critical authentication bypass flaw impacting Cisco Catalyst SD-WAN…
Google Rolls Out Gemini 4 Argon to Trusted Cyber Defenders, Plans Guardrail-Free Version
Google on Wednesday announced its latest frontier artificial intelligence (AI) model, Gemini 4 Argon, that it said is being rolled out to a set of trusted…
Apple CoreGraphics PoC Emerges as WhatsApp PDF Checks Hint at Possible Delivery Path
Security researchers have published the first public proof-of-concept for CVE-2026-86950, an Apple CoreGraphics flaw Apple says may have been used in…