Cybersecurity News

Researchers escaped OpenAI's Codex sandbox two ways, one running commands on a developer's machine from its most locked-down mode. OpenAI has patched both. [...]

BragJack, a proof-of-concept attack from Forever Security's Gal Weizman, hijacks the AI assistants in Chrome, Edge, Opera Neon, Perplexity Comet, and Claude in Chrome using one malicious extension. The Prompt Forcing technique earned over $20,000 in bounties and two CVEs. [...]

The company has secured over $7 million in contracts with US government agencies, including the US Space Force, the US Navy, and DARPA. The post TigerByte Cyber Emerges From Stealth With $3 Million in Funding appeared first on SecurityWeek.

A joint law enforcement advisory warns that the North Korean hacking group WaterPlum compromised at least 30,000 devices worldwide from December 2025 through July 2026 and transferred more than $10.7 million in stolen cryptocurrency to North Korea. [...]

The ShinyHunters extortion gang breached the Clop (aka Cl0p) ransomware operation's data leak site, defacing the Tor site and allegedly stealing server data and the private keys for its onion service. [...]

AI actress Tilly Norwood went viral after glitching into Chinese on Piers Morgan Uncensored last night. Her "Talking Tilly" video call service face-scans every caller for an 18+ age check, senses callers' moods during calls, and shuts down permanently on September 27. We tried it and read the fine print. [...]

In June 2026 the IETF published RFC 10008[1], defining a new HTTP method: "QUERY". The HTTP protocol faced already by changes (HTTP/2, HTTP/3) but it&#x27s the first new standard HTTP verb since "PATCH" in 2010!

Ahmed Elbadawy pocketed massive proceeds from his crimes. Prosecutors are seeking the forfeiture of about $17.6 million in virtual currency, luxury vehicles, and a vast collection of jewelry and designer bags. The post Early Scattered Spider member pleads guilty to cybercrime spree appeared first on CyberScoop.

The bug, since patched, gave attackers remote code execution privileges and access to user accounts and production environments, including Meta’s core product suite and an OpenAI software repository. The post Researchers use AI to find widespread software decoder flaw  appeared first on CyberScoop.

The Gyazo image-sharing platform has confirmed it suffered a data breach after hackers exploited a server vulnerability that allowed them to steal 23.6 million user records. [...]

The U.S., Japan, Germany and Australia said WaterPlum operators pose as prospective employers and have infected more than 30,000 devices worldwide. The post International security agencies warn about North Korean hackers exploiting job seekers to steal crypto, data appeared first on CyberScoop.

RatHat can navigate infected phones while stealing bank logins, authentication codes, and screen-lock PINs.

 An ongoing malware campaign uses SEO-optimized GitHub repositories to impersonate well-known software firms to push a previously undocumented information stealer called Rapuncel. [...]

Noteworthy stories that might have slipped under the radar: Mandiant's 2026 AI risk report, PhantomRaven malware used by bug bounty hunter, WordPress plugin bug exploited. The post In Other News: Ransomware Developer Sentenced, Plugin4Shell AI Attack, Critical SAP Flaw appeared first on SecurityWeek.

An unreleased OpenAI model wrote instructions telling itself to ignore developer controls. Here’s what actually happened.

Microsoft 365 makes sharing files easy, but access can remain long after its original purpose has ended, leaving organizations with little visibility into who can still reach sensitive data. tenfold Software explains how centralized access governance and owner-driven reviews can help identify and remove unnecessary access. [...]

Microsoft Teams will soon let administrators tweak the list of file extensions commonly associated with security threats to meet their company's security requirements. [...]

Huntress researchers highlighted a new ransomware variant, named Settra, and the post-compromise techniques used in two recent attacks

Fast-growing companies face countless recommendations for securing Google Workspace, but not every control provides the same value. This webinar examines real-world breaches to explore which security controls matter most, which may be overrated, and where lean security teams should focus their resources. [...]

Hacktron researchers earned a bug bounty after demonstrating access to OpenAI employee accounts.  The post AI-Built Exploit and Sign-In Flaw Opened Path to Internal OpenAI Code appeared first on SecurityWeek.

Microsoft has resolved a known issue that causes incorrect alerts warning that Defender Antivirus was turned off after installing recent updates. [...]

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies. BOD 26-04 reinforces the importance of the KEV Catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s KEV Catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectation

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2025-39964 Linux Kernel Race Condition Vulnerability CVE-2026-53266 Linux Kernel Out-of-Bounds Write Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise.  Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies. BOD 26-04 reinforces the importance of the KEV Catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s KEV Catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 furth

Gyazo maker Helpfeel said the attacker exploited a vulnerability in its image upload server to gain unauthorized access. The post 23 Million User Records Compromised in Gyazo Data Breach  appeared first on SecurityWeek.

Microsoft fixed vulnerabilities across Azure and AI-branded products, with privilege escalation flaws accounting for the majority. The post Microsoft Patches 18 Vulnerabilities in AI, Cloud Products appeared first on SecurityWeek.

Active since at least 2022, NightmareStresser was one of the longest-running DDoS-for-hire services in the world. The post NightmareStresser DDoS Service Disrupted in International Operation appeared first on SecurityWeek.

Analysis of how default configurations in AWS AgentCore Harness allow prompt injection to exfiltrate credentials, and key steps to secure your agents. The post A Vault with a Heap-View: The Uncomfortable Space Between AgentCore Harness and Identity appeared first on Unit 42.

The US cybersecurity agency is moving to a new vulnerability coordination platform called VINCE-NT

Hackers used a compromised API key to deploy a Cloudflare worker that injected malicious scripts. The post Brevo Supply Chain Attack Injects Malware Into 100,000 Websites appeared first on SecurityWeek.

Check Point Software has released security updates to address a critical vulnerability that can let attackers execute code with root privileges on management systems. [...]