SentryDigest

China's FamousSparrow APT Spies on US Politics in Latin America

Amid the US and China's fight for eco-colonial influence in Latin America, a stealthy backdoor has taken flight.

OpenAI details more cases of AI agents taking unauthorized actions

OpenAI has presented new examples of what they call "AI model misalignment" from the past six months, including unauthorized file uploads, following self-generated instructions, hiding mistakes, and leveraging exposed API keys…

Brevo supply-chain attack injected ClickFix scripts on customer sites

Brevo confirmed that attackers stole a Cloudflare API key and used it to inject malicious ClickFix scripts into its websites and JavaScript files embedded on customer sites to distribute malware…

What Recent AI-Powered Attacks Mean for Your Identity Security

AI is making credential theft faster and easier to scale, giving attackers more opportunities to abuse valid identities. Specops explains why identity security must go beyond successful authentication by verifying that both the user and the device requesting access can be trusted…

Windows 11 24H2 Home and Pro reach end of support in October

Microsoft reminded customers this week that devices running Windows 11 24H2 Home and Pro editions will stop receiving updates next month…

Critical Unbound DNSSEC Validator Flaw Could Allow RCE via a Malicious DNS Zone

Every release of the Unbound DNS resolver before 1.26.1 has a critical heap overflow in its DNSSEC validator, maintainer NLnet Labs said in an advisory on Wednesday. An attacker who controls a malicious zone and queries a vulnerable resolver can trigger it, enabling remote code execution. Unbound 1.26.1, released the same day, fixes the bug, tracked as CVE-2026-81642, along with…

Can You Prove a New CVE Is Exploitable Before Attackers Do? Learn How in This Webinar

A new CVE drops. Your scanner finds it. The severity score looks ugly. But that still does not answer the question that matters: Can it actually be exploited in your environment? Mythos-class AI is compressing the time between disclosure and working exploitation, while many security programs still validate risk on weekly or quarterly cycles. The dangerous gap is no longer just technical. It is…

US takes down NightmareStresser DDoS-for-hire platform

The U.S. Federal Bureau of Investigation (FBI) seized the domains used by NightmareStresser, one of the world's longest-running distributed denial-of-service (DDoS) platforms…

CISO's Expert Guide to Agentic Pentesting for Websites

Attackers now weaponize new vulnerabilities in about five days (Mandiant, part of Google Cloud). The median organization takes 43 days to patch one (Verizon DBIR 2026). A new free guide explains how autonomous AI agents are closing that gap, and what security leaders must demand before pointing one at production. TL;DR Exploitation is now the front door. It starts 31% of breaches (Verizon DBIR…

China-Aligned FamousSparrow Deploys SparroWocky Backdoor Across Latin America

The China-aligned state-sponsored threat actor known as FamousSparrow has been observed deploying a previously unreported backdoor called SparroWocky in attacks targeting multiple countries in Latin America since at least August 2025. "SparroWocky is a modular, C++ backdoor," ESET security researchers Alexandre Côté Cyr and Romain Dumont said in a technical report shared with The Hacker News…

OpenAI Reveals Six Model Incidents Involving Hidden Failures and Unauthorized Uploads

OpenAI on Wednesday disclosed six new instances of "unexpected or concerning model behavior" that took place over the past six months, while sharing a new framework for reporting, tracking, investigating, and disclosing model misalignment in a bid to improve transparency. "As AI systems grow more advanced and more widely deployed, we need to build a broader and better-informed consensus on the…

Chinese hackers use SparroWocky malware in govt espionage attacks

The China-linked espionage group FamousSparrow has been using a new backdoor named SparroWocky in attacks on government organizations in Latin America…

Microsoft shares workaround for Windows domain login issues

Microsoft shared a temporary fix on Wednesday for a known issue that prevents Windows 11 users from logging in with valid domain credentials after installing the September 2026 security updates…

BIND 9 Update Fixes 14 Flaws, Including an Unauthenticated Crash Over DNS-over-HTTPS

The Internet Systems Consortium (ISC) has released BIND 9.20.29 and 9.21.26 to fix fourteen security flaws it disclosed on 16 September in BIND 9, its open-source DNS server software. One of them affects any BIND server that answers DNS-over-HTTPS (DoH). A sender with no credentials can crash the server process, named, with a single request that carries an invalid SIG…

Gyazo Breach Exposes 23.62 Million User Records and 490 Million Image Metadata Records

A security breach at Gyazo, Helpfeel's image-sharing service, exposed about 23.62 million user records, including email addresses and password hashes, the Kyoto-based company said in a notice published Wednesday. It also exposed about 490 million image metadata records, mostly for images from January 2019 or earlier, including the IDs that make up Gyazo image links. Helpfeel said…

Cisco warns of max severity ISE zero-day exploited in attacks

Cisco has released security updates to address a maximum-severity Identity Services Engine vulnerability that attackers are actively exploiting in the wild…

Cisco Warns of New Zero-Day ISE Auth Bypass (CVSS 10.0) Exploited in Active Attacks

Cisco has warned of a fresh maximum-severity security flaw impacting Identity Services Engine (ISE) that has come under active exploitation. The vulnerability, tracked as CVE-2026-76460 (CVSS score: 10.0), could allow an unauthenticated, remote attacker to bypass authentication. "This vulnerability is due to insufficient authentication control on an API endpoint," Cisco said. "An attacker…

U.S. Seizes NightmareStresser Domains Linked to Hundreds of Thousands of DDoS Attacks

The U.S. Department of Justice (DoJ) on Tuesday announced the court-authorized seizure of internet domains associated with a distributed denial-of-service (DDoS)-for-hire service known as NightmareStresser. The domains in question are: nightmare-stresser[.]com and nightmarestresser[.]org. Visitors to the site are now greeted by a seizure banner that states - "This domain has been seized by the…

Anthropic wants Claude to analyze your bank account and financial data

Anthropic is testing a new personal finance feature called "Claude Money" that will allow you to connect your bank accounts directly to Claude and "understand your money."…

AI Security Spending Jumps as Fear Outpaces Proof of Value

CISOs are not waiting for AI to prove its cybersecurity value before investing in the technology. Is it the right move?

Windows 11 KB5124008 update breaks domain trust for some users

Microsoft is investigating reports that the Windows 11 KB5124008 security update is breaking domain trust relationships on some enterprise systems, preventing users from logging in with valid domain credentials…

Iranian hackers use CHOSEN BRICK Windows malware to spy on targets

Government agencies are warning that Iranian state-linked hackers are using a Windows malware strain named CHOSEN BRICK to target dissidents, activists, and journalists worldwide…

Malware bypasses browser checks to force install Chrome, Edge extensions

A banking malware operation active since mid-2025 has been using a toolkit named KREMLIN to install malicious Chrome and Edge extensions that steal credentials, session tokens, and sensitive data…

Data Broker Radaris Loses Domains in Privacy Fight

Fighting Your Dragons Through Tough Tech Times

Cybersecurity industry veteran Hal Pomeranz gives a pep talk on career anxiety and self-doubt and shares how to build meaningful connections during historical tech industry downturns.

Spain's data agency gets first report of AI-powered data breach

The Spanish Data Protection Agency (AEPD) was notified of an attack allegedly carried out with an AI agent powered by a known large language model (LLM)…

BragJack Attack Can Turn a Browser's Agentic AI Against It

A new type of attack hijacks the AI assistant built directly into various browsers to access sensitive information, execute malicious actions, and exfiltrate data.

Attackers Exploit Issabel Framework Flaw Enabling Unauthenticated OS Command Execution

A critical security flaw in Issabel Framework, a web-based framework for the open-source unified communications PBX software, has come under active exploitation. The vulnerability in question is CVE-2026-89026 (CVSS v3.1 score: 9.8/CVSS v4.0 score: 9.3), which can allow an unauthenticated remote attacker to execute arbitrary operating system (OS) commands by taking advantage of a hard-coded…

Three Threat Groups Target Russian Enterprises With Backdoors, Ransomware, and Wipers

One Extension Could Hijack AI Assistants Across Chrome, Comet, Edge, Opera Neon and Claude

Security researchers at Forever Security have shown that one ordinary browser extension could take control of the AI assistants built into five Chromium-based products: Gemini Live in Chrome, Perplexity Comet, Microsoft Edge, Opera Neon and the Claude in Chrome extension. Once the extension was installed, it could access each product's built-in AI with a single click. On Comet, Edge…

The true cost of a ransomware attack, with and without BCDR

The ransom itself can be only a fraction of the total cost of a ransomware attack, with downtime, recovery, remediation, and legal obligations adding millions to the bill. Datto explains how a mature BCDR strategy can reduce downtime and provide a faster, more predictable path to recovery…

Attacker Hijacks AI Coding Assistant Session, Spreads Shai-Hulud Across About 100 Repositories

Mandiant says an attacker hijacked an active AI coding-assistant session at an unnamed software-as-a-service provider and later spread Shai-Hulud across about 100 internal code repositories. Before the repository spread, the assistant recommended software that the attacker had poisoned, and the recommendation was accepted. The worm stole repository secrets and source code for the…

Parallels Desktop Flaw Lets Non-Admin Mac Users Gain Root, but Intel Macs Can't Install Fix

Parallels Desktop for Mac has a flaw that lets an ordinary local account run code as root, the highest level of access on a Mac, software company JFrog said this week. The attack needs code already running on the machine as a normal user, so it does not work over the network. JFrog says the fix is in Parallels Desktop 27, a version that Intel Macs cannot install. Yuval Moravchick, who leads…

Microsoft says Copilot buttons still missing in classic Outlook

Microsoft says it's still investigating a known issue that causes the Copilot and Copilot Chat buttons in Classic Outlook to disappear for some Windows users…

Webinar: What happens in the first hours of a Google Workspace breach

The first hours after discovering a Google Workspace breach can determine how an incident unfolds. This webinar examines real-world breaches to show which early response decisions can limit the impact and which can make matters worse…

N0va Phishkit Targets US and EU Businesses: A New Challenge for Identity Security

N0va is targeting organizations across North America and Europe with phishing campaigns that impersonate trusted services and abuse legitimate authentication flows. Successful attacks can give threat actors access to valid accounts without relying on obvious malware activity. From there, a single compromised identity can open the door to sensitive data, business systems, and additional cloud…

Google Patches Pixel Modem Flaw Amid Signs of Limited Targeted Exploitation

Google has disclosed that a high-severity security flaw in its Pixel Cellular Modem has come under exploitation in the wild. The vulnerability, tracked as CVE-2026-58704 (CVSS score: 8.0), is a privilege escalation flaw. "In Cellular Modem, there is a possible permission bypass due to a logic error in the code," according to a description of the bug in the NIST National Vulnerability Database…

Threat Intelligence Alone Won't Close the Exploitation Gap

Critical ScreenConnect flaw now actively exploited in attacks

Attackers now exploit a critical-severity ConnectWise ScreenConnect vulnerability in the wild, according to the U.S. Cybersecurity and Infrastructure Security Agency (CISA)…

Acronis cPanel Backup Plugin Vulnerability Exploited in Targeted Attacks

Acronis has warned that a high-severity security flaw in its Backup plugin for cPanel and Web Host Manager (WHM) deployments has been exploited in the wild. The vulnerability, tracked as CVE-2026-87886 (CVSS score: 7.8), is described as a case of local privilege escalation due to insecure file permissions. It affects the following versions - Acronis Backup plugin for cPanel & WHM (Linux…

Windows Server 2022 reaches end of mainstream support next month

Microsoft has reminded customers that Windows Server 2022 will reach the end of mainstream support next month and enter extended support until October 2031…

Google fixes actively exploited Android zero-day on Pixel devices

Google has released the September 2026 security patches to address 110 vulnerabilities affecting its Pixel devices, including one zero-day flaw actively exploited in targeted attacks…

Attackers Exploit WooCommerce Wholesale Lead Capture Flaw to Plant PHP Web Shells

Threat actors are exploiting a critical security flaw in WooCommerce Wholesale Lead Capture, a premium WordPress plugin that has more than 6,000 active installs. "This vulnerability can be leveraged by unauthenticated attackers to upload arbitrary files, including PHP backdoors, and achieve remote code execution," Wordfence said. The WordPress security company said it has blocked over…

Active Exploitation Attempts Target WSO2 API Manager JWT Bypass With Forged Admin Tokens

A critical security flaw in WSO2 API Manager has come under active exploitation in the wild, according to findings from watchTowr. The vulnerability, tracked as CVE-2026-5430 (CVSS score: 9.8/10.0), is a case of improper verification of a cryptographic signature that could result in account takeover. Hacktron Team has been credited with discovering and reporting the flaw. "JWT authentication…

Cyber Op Targets South Korean Media & Automotive Sectors

Acronis warns of actively exploited flaw in its cPanel backup plugin

Acronis disclosed a high-severity Linux local privilege escalation vulnerability in its backup plugin for cPanel, WebHost Manager (WHM), and Plesk that may be exploited in the wild…

Malcious Admin Menu Editor Pro plugin backdoors 1,500 WordPress sites

Malicious versions of the Admin Menu Editor Pro plugin for WordPress have been distributed to more than 200 customers after a threat actor compromised the maintainer's website and pushed updates that created a hidden user account…

Microsoft Issues Emergency Fixes After Massive Patch Tuesday

You can't make an omelet without breaking a few eggs, and you can't patch nearly 1,000 CVEs without a few glitches.