An automated roundup of 24 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
BigCommerce alerts merchants of data breach linked to Ribon apps
Ecommerce platform BigCommerce has alerted multiple merchants to data breaches after attackers compromised credentials for third-party Ribon applications and used them to inject malicious scripts into online stores. [...]
CISA alerts of active exploitation of three Linux kernel flaws
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is warning that hackers are exploiting three Linux kernel vulnerabilities, one of them rated critical. [...]
WordPress Click2Shell flaw lets hackers execute PHP on the server
Technical details and a proof-of-concept exploit have been published for a new WordPress cross-site request forgery (CSRF) vulnerability dubbed 'Click2Shell' that affects the platform's Core component. [...]
Microsoft to retire Microsoft 365 Companion apps in December
Microsoft will retire the Calendar, People, and Files Microsoft 365 companion apps on December 16 and has asked admins to remove them from managed devices. [...]
Google fined €403 million over location data privacy violations
Ireland's Data Protection Commission (DPC) has fined Google €403 million ($463M) for multiple GDPR violations related to processing users' location data. [...]
Microsoft fixes broken Excel copy and paste for all Office users
Microsoft has fixed a known issue that causes copy-and-paste failures for Excel users after installing the September 2026 security updates. [...]
FBI's CJIS v6.1: What Security Teams Need to Know.
The FBI's CJIS Security Policy v6.1 strengthens requirements around encryption and vulnerability scanning while continuing the shift toward more continuous security assessment. Specops explains what changed and how agencies can address password, MFA, and identity requirements as…
Microsoft reminds admins to migrate Entra ID users to passkeys
Microsoft has reminded admins to migrate Entra ID users to phishing-resistant authentication methods to avoid sign-in disruptions after it retires SMS first-factor sign-in starting in February 2027. [...]
Microsoft: September updates break File History backup feature
Microsoft warned that the built-in File History backup feature in Windows may stop working on some systems after installing the September 2026 security updates. [...]
The Hacker News
Fake LastPass Authenticator Installer Abuses Microsoft-Signed Driver to Kill Antivirus and EDR
A fake LastPass Authenticator installer offered on GitHub installs a Windows kernel driver that shuts off antivirus and other security software before a password stealer runs if a victim downloads and runs it, researchers at LastPass and Delphos Labs said on September 17.…
Contagious Interview Campaign Compromises 30,000 Devices, Steals $10.71M in Crypto
The North Korean threat actors behind the Contagious Interview campaign have compromised at least 30,000 devices located in more than 100 countries and siphoned funds or account credentials from over 7,000 cryptocurrency wallets, according to a new joint cybersecurity advisory.…
Google Fined €403 Million Over GDPR Violations Tied to Location Data
Google has been fined €403 million for breaking the EU's data protection law, the GDPR, in the way three of its features handled people's location data from May 2018 to February 2020. Ireland's Data Protection Commission (DPC), Google's lead regulator in the EU, also ordered the…
⚡ Weekly Recap: Cisco 0-Day, AI Agent RCE, ClickFix Attacks, ClickFix Surge, and Browser Hijacks
A browser. A plugin. A package. A login screen. Normal stuff. That is basically the problem this week. The trouble keeps showing up inside things people already trust: code that takes a bad turn, old payloads coming back, exposed systems, weak checks, fake fixes, and attack…
TASK#STOMP PowerShell Backdoor Steals Documents, Wi-Fi Passwords, and Clipboard Data
Cybersecurity researchers have disclosed details of a new campaign dubbed TASK#STOMP that delivers a PowerShell backdoor designed to harvest sensitive data from compromised hosts. The backdoor "automatically harvests and exfiltrates business documents, watches the filesystem for…
ClickFix Lures Deploy ChainScript RAT Using Polygon to Rotate C2 Infrastructure
Threat actors are leveraging ClickFix-like lures to deliver a previously undocumented remote access trojan (RAT) called ChainScript. "ChainScript has appeared under multiple build names, including ComponentTask33, UpdateDigital, HostShared, and OrchidViolet66, while presenting…
Jade Sleet Linked to Indian IT Provider Breach With FLATROOF and ROOFDECK Backdoors
The North Korean threat actor known as Jade Sleet has been attributed to the compromise of an India-based "much smaller organization" in the information technology (IT) services industry, once again highlighting how the adversary continues to target developers to breach target…
Dark Reading
How AI Agents Can Trigger Runaway Costs for Enterprises
Unbounded consumption is an issue that OWASP currently ranks sixth in its Top 10 for LLM Applications, and it could be an extremely costly one.
ShinyHunters Hacked Clop. Now What About Clop's Victims?
ShinyHunters defaced Clop's Dark Web site and claims to have stolen victim data, potentially exposing organizations that paid ransoms to renewed extortion attempts.
Cybercriminals Are Hiding New Malware in Torrents for Popular Films
Victims have been identified in Africa, including in Kenya and Uganda.
Rogue Behavior: OpenAI Reveals More Model Misalignment Incidents
The AI giant disclosed six examples of concerning model activity and published a new framework for investigating and disclosing such incidents.
[Virtual Event] Cybersecurity Outlook 2027
SANS Internet Storm Center
TerminalFix: PNG Steganography, (Mon, Sep 21st)
Microsoft Security Research published an interesting blog post "TerminalFix campaign deploys a reverse tunnel through multistage intrusion" about a malware campaign. The aspect that I want to take a closer look at, is the fact that the threat actors used PNG files with…
Not included today: Krebs on Security (no articles in the last 36h)