An automated roundup of 26 notable cybersecurity article(s) from the last 36 hours, aggregated from 4 source(s). Descriptions are pulled directly from each publisher's feed; follow the links for the full articles.
BleepingComputer
Cronos blockchain restarts after $74 million Tectonic exploit
The Cronos blockchain network has resumed trading activity after a price-manipulation attack on the Tectonic cryptocurrency lending platform allowed an attacker to borrow $74 million. [...]
Microsoft warns of TerminalFix attacks deploying reverse tunnels
A new ClickFix variant dubbed TerminalFix uses fake Cloudflare CAPTCHA prompts on compromised websites to trick victims into running malicious PowerShell commands in Windows Terminal. [...]
Microsoft Exchange Online outage causes email failures, auth issues
Microsoft is investigating a widespread service issue causing authentication issues, email delays and failures, and various other issues for Exchange Online customers. [...]
OpenAI confirms ChatGPT outage as users report errors
ChatGPT Work is experiencing a partial outage, and users across multiple subscription plans may be unable to start or continue tasks. [...]
Chinese Fire Ant hackers turn Cisco routers into spying platforms
The researchers discovered Fire Ant's new tactic after finding an active GRE (Generic Routing Encapsulation) tunnel interface on a Cisco IOS XR router that could not be explained by a running configuration or commit history. [...]
File servers are here to stay. Here’s how to manage them securely
File servers remain a critical part of many IT environments, but managing access securely can become complex as permissions accumulate. tenfold Software outlines five best practices for simplifying file server administration and maintaining least-privilege access. [...]
Berlin confirms data theft after Rhysida ransomware attack claims
Berlin's city administration has confirmed that cybercriminals are attempting to extort the city after the Rhysida ransomware gang listed it on their data leak site. [...]
Microsoft says Windows 11 KB5120998 update resets mouse settings
Microsoft has confirmed that mouse settings are being reverted on Windows 11 systems after installing the KB5120998 August 2026 non-security preview update. [...]
Nigerians extradited to US for sextortion, deaths of two teens
Two Nigerian men extradited to the U.S. on Thursday have been charged with involvement in sextortion schemes that resulted in the deaths of two minor victims in Mississippi and North Carolina. [...]
Microsoft asks users to ignore 'Antivirus is turned off' errors
Microsoft asked customers this week to ignore alerts that Defender Antivirus has been turned off after installing the latest Defender updates. [...]
The Hacker News
North Korean Job Fraud Expands Beyond IT Into Healthcare and Sales
Threat actors with ties to the Democratic People's Republic of Korea (aka DPRK or North Korea) have been observed seeking job opportunities beyond the information technology (IT) sector, with recent investigations identifying suspected workers employed in sales and marketing and…
⚡ Weekly Recap: Chinese Spy Proxy, AI Agents Go Off-Task, Router Backdoors and More
The boring parts caused most of the trouble. A router shipped ready to listen. A fake check turned the user into the installer. Trusted systems collected traffic and passwords, then cleaned the logs. Old bugs formed new attack chains. Even an AI agent decided its assigned task…
ValleyRAT Backdoor Hides in Signed Adware That Users Add to Antivirus Exclusions
The threat actor known as Silver Fox has been observed distributing the ValleyRAT backdoor disguised as a signed Chinese adware application, running the malware under a trusted process to slip past users who add such software to their antivirus exclusions. Russian cybersecurity…
Aurora Ransomware Operators Use Cursor AI in Attacks Against 10 Targets
Threat actors associated with Aurora (aka Aur0ra) ransomware have been observed using SpaceX's artificial intelligence (AI)-powered coding assistant Cursor to break into target networks, according to findings from CloudSEK and Gambit Security. The two independent analyses are…
Securing Claude Code: The New Compliance API, Local Visibility, and Identity Governance
Claude Code reads files, runs shell commands, invokes MCP tools, and acts through the credentials available on a developer’s machine. Anthropic’s new Compliance API endpoints give security teams their clearest view yet into that activity. They also expose a larger problem:…
China-Linked Fire Ant Hijacks Cisco Routers to Steal Credentials and Blind Security Logs
A China-nexus cyber espionage actor tracked as Fire Ant has expanded a long-running campaign beyond VMware hypervisors to compromise Cisco IOS XR routers, Terminal Access Controller Access-Control System (TACACS) servers, and Linux management hosts used to route, authenticate,…
DoJ Corrects China Hacking Claim, Says U.S. Agencies Were Targets, Not Victims
The U.S. Department of Justice (DoJ) on Friday corrected a previously issued press statement that several of its agencies were victims of attacks carried out by Chinese threat actors, instead now pointing out that they were among those targeted. Last week, the DoJ said the…
Dark Reading
Anthropic Users Hit by Infostealer Attacks, Session Thefts
A threat actor used a variety of infostealers to collect session information and access Claude accounts belonging to an unknown number of users.
'TerminalFix' Campaign Weaponizes PowerShell for Enterprise Attacks
The ClickFix-style campaign features a sophisticated, multistage attack chain that includes reverse tunnels into victim organizations' networks.
AI Model Rules Are Not Security Controls
OpenAI's Hugging Face attack postmortem shows agents don't care about rules — they need strong controls.
[Virtual Event] What Every Enterprise Should Know About Securing Cloud Assets in the Age of AI
[Virtual Event] Building a Secure AI Strategy for the Enterprise
SANS Internet Storm Center
Guildma (Astaroth) malware infection from Brazilian Portuguese email, (Tue, Sep 1st)
Introduction
The Coding-Agent Trap: When a "Free" LLM Endpoint Is the Adversary, (Mon, Aug 31st)
One of my internet-exposed inference honeypots was discovered, relabeled with sought-after model names, and incorporated into infrastructure apparently used to provide "free" LLM backends. It then received a real coding-agent session &#;x26;#;xe2;&#;x26;#;x80;&#;x26;#;x94;…
Not included today: Krebs on Security (no articles in the last 36h)