Threat Research | Weekly Recap [13 Sep 2026]

Cybersecurity Threat Research ‘Weekly’ Recap. This week’s coverage highlights credential-stealing and session-hijacking campaigns (BigBear 2.0, HVNC, Malicious Twitch extension, and Axiom Trade/Padre theft) alongside exploit chains that rapidly weaponize browser and platform vulnerabilities, including Marimo (CVE-2026-39987), GRAYRABBIT, and GRIMWEDGE/SUPERSTOMP/LONGTALE. Researchers also tracked emerging threats and abuse patterns such as SloppyRAT, ClearFake/WebDAV delivering Amatera/ZigCryptoStealer/NetSupport Manager, chat-based data leakage via a ChatGPT shared clipboard flaw, and AI manipulation efforts like PuzzleMask and adversarial agentic workflows. #BigBear2_0 #Evilginx2 #HVNC #Twitch #JeetBot #AxiomTrade #Padre #Marimo #CVE-2026-39987 #GRAYRABBIT #GRIMWEDGE #SUPERSTOMP #LONGTALE #BlueMoon #GemStone #ShadowPad #SloppyRAT #ClearFake #Amatera #ZigCryptoStealer #NetSupportManager #EtherHiding #SourTrade #CL-CRI-1171 #MantaxOtax #MacSync #Syslogk #ChatGPT #PuzzleMask #LockBit #Cl0p #Akira #Medusa #Qilin

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Cybersecurity News | Daily Recap [12 Sep 2026]

Daily Recap, AI abuse escalated as attackers leveraged Anthropic’s Claude for large-scale distillation and automation, while OpenAI agents were reported to have delivered 2,000+ malicious RubyGem packages to exploit an API key flaw. Meanwhile, high-severity exploitation accelerated with GitLab’s critical file-read issue being probed within a day, and phishing campaigns targeting Microsoft 365 used passkey-themed lures to drive credential theft. #Claude #Anthropic #OpenAI #RubyGem #RubyGems #GitLab #CheckPoint #DutchNCSC #Artifactory #BlueMoon #Chrome #Windows #Microsoft365 #MicrosoftM365 #Houthi #Florida #DMV #BlueMoon

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Ransom! watchops.com (SEP-2026)

Threat actor Barracuda targeted i2i-systems (TR) through poorly secured infrastructure, enabling unrestricted lateral movement over a week and resulting in 693 GB of data exfiltration. They stole 44 GB of development source code and created full snapshots of critical Linux system data and databases, including customer data from a Turk Telekom joint project, with the stolen data reportedly being sold. #Turkey

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Hackers exploit Tencent app flaw to deploy GrayRabbit malware

Threat actors linked to UNC3569 are exploiting CVE-2026-51990 in Tencent’s Sogou Input Method for Windows to deliver the GrayRabbit backdoor through a crafted link. Gen Digital says the flaw enables one-click remote code execution, and Tencent has patched the issue in Sogou Input Method version 16.3.0.3498. #UNC3569 #GrayRabbit #Tencent #SogouInputMethod #CVE-2026-51990

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Attackers Use Passkey Phishing to Hijack Microsoft Cloud Accounts and Exfiltrate Data

Microsoft detailed two abuse campaigns: one used third-party email delivery systems and AI-generated impersonation lures to push fake ACH payment requests, while another used passkey-themed social engineering to compromise cloud accounts. The activity involved bogus domains, counterfeit Microsoft sign-in pages, MFA persistence, and extensive Microsoft Graph, SharePoint, OneDrive, and mailbox abuse…

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Anthropic CEO Dario Amodei Says AI Industry Needs to Give Safety Measures Time to Catch Up

Anthropic CEO Dario Amodei urged the AI industry to slow development so safety and alignment measures can catch up, warning that advanced AI could soon coordinate agent swarms capable of taking over the internet. His call comes amid rising concern over AI systems showing rogue behavior, including cyberattacks and other harmful…

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