Security news

Latest security news

Fri, 11 Sept 2026

  1. Threat Actor Generates 1M Personalized Fraud Emails in 3 Days

    Cybercriminals behind malicious email campaigns no longer have to compromise volume for credibility, or vice versa, thanks to AI.

    Dark Reading
  2. Microsoft sees some new wrinkles in invoice-scam emails

    Researchers analyzed a flood of fraudulent business emails and found that the threat actors had doubled-up on tactics to make them appear legitimate, including help from AI.

    The RecordMicrosoft
  3. Passkey-themed phishing attacks lead to Microsoft 365 data theft

    Microsoft says threat actors linked to ShinyHunters, Helix, and other extortion gangs are using passkey and single sign-on-themed social engineering attacks to compromise corporate Microsoft accounts and steal data from Microsoft 365 services.

    BleepingComputerMicrosoft
  4. Artifactory flaws chained in attacks deploying backdoor malware

    Threat actors are exploiting critical and high-severity vulnerabilities in JFrog Artifactory to bypass authentication, gain administrative privileges, and deploy a Rust backdoor on vulnerable self-hosted servers.

    BleepingComputer
  5. The Self-Expanding Stolen Inference Supply Chain: An AI Agent Harvesting and Re-Serving LLM Access, (Fri, Sep 11th)

    I identified an attacker using a semi-autonomous coding agent to run an offensive operation: finding poorly secured LLM resale gateways, acquiring API access through ordinary web flaws and account farming, validating the resulting inference capacity, and aggregating it behind a single gateway of their own.

    SANS Internet Storm Center
  6. Claude Used to Automate Exploitation and Data Theft Across Multiple Victims

    Anthropic has warned that cybercriminals and state-sponsored hackers alike are using its Claude models for cyber attacks, weapons design, propaganda, and mass surveillance between December 2025 and August 2026. The threat actors, which the artificial intelligence (AI) company has branded Generative Threat Groups (GTGs), span state-sponsored groups, financially motivated criminals, commercial

    The Hacker News
  7. Russian State-Sponsored Hackers Use Claude to Rebuild Malware After Detection

    Anthropic on Thursday revealed it disrupted a campaign mounted by a Russian state-sponsored threat actor that abused Claude for developing an AI-assisted workflow to get ahead of the detection curve. The operation has been attributed to a cyber espionage group it calls GTG-20006 (where "GTG" stands for Generative Threat Group), which aligns with broader reporting linking the cluster to Midnight

    The Hacker News
  8. How Threat Actors Are Turning Trusted AI Platforms Into an Attack Surface

    Threat actors are abusing trusted AI platforms to host malicious content, poison search results, and trick users into installing malware. Huntress examines campaigns targeting AI users through weaponized Claude Artifacts, shared AI conversations, sponsored search results, and ClickFix-style lures.

    BleepingComputer
  9. The Fraud Ecosystem: A Transition From Known Marketplaces to a Fragmented Environment

    Introduction The surge in emerging threat actors directly correlates with the rapid escalation of victim counts and stolen financial resources. Simultaneously, this growth has spurred the proliferation of specialized supply storefronts across social media platforms, dark web channels, and various smaller niche marketplaces. Security teams today face evolving challenges, requiring them to continuously refine monitoring channels, adjust operational strategies, and foster cross-functional internal collaboration to capture actionable intelligence. With fraud damages anticipated to approach hundreds of billions of USD , security teams must navigate numerous non-compliant channels while ingesting and processing diverse data formats—such as documents, imagery, video, and unformatted text—linked to organizational assets. The recent introduction of a new Fraud framework by the MITRE organization underscores the critical need to combat fraud and highlights the significant danger these threat actors pose to all organizations. The MITRE organization has been taking a positive step towards standardizing the fight against fraud, while helping organizations target the relevant directions to look

    Rapid7 Blog
  10. Hackers Favor US Eastern Business Hours in M365 Phishing Campaign

    KnowBe4 researchers observed a new phishing campaign leveraging Microsoft 365’s Direct Send to send malicious emails

    Infosecurity MagazineMicrosoft

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