Defender Daily Hub

Defender 27 June 2026

Clean GitHub repo tricks AI coding agents into running malware

An agentic coding tool tasked with cloning and setting up a seemingly benign GitHub repository could execute a malicious payload that remains invisible to security scanners, AI agents, and human…

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Defender 26 June 2026

FBI: Russian hackers now target Signal backup recovery keys

The FBI and CISA are warning that a phishing campaign targeting Signal users tied to Russian intelligence services has evolved to steal Signal Backup Recovery Keys, allowing attackers to access…

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Defender 26 June 2026

CISA sets urgent deadline to fix Cisco flaw exploited in attacks

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is giving federal agencies until Sunday to patch a vulnerability in Cisco Unified Communications Manager Server that is being actively…

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Defender 26 June 2026

Polymarket customers lose $3 million in supply-chain attack

Polymarket says it will fully reimburse customers who lost an estimated $3 million after hackers injected a malicious script into the platform's frontend following a breach at a third-party vendor.…

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Defender 26 June 2026

Cybersecurity firms targeted by fraudulent OpenAI organization invites

Threat actors are creating OpenAI tenants that impersonate legitimate companies and inviting employees to join them, in what appears to be a ploy to trick targets into submitting sensitive company…

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Defender 26 June 2026

Your First GRC Agent: A Red Teamer's Walkthrough

AI won't replace GRC analysts, but it can eliminate much of the repetitive work they do. Anecdotes walks through building an agent that continuously monitors controls, identifies evidence gaps, and…

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Defender 25 June 2026

Anthropic is testing desktop-like Claude Cowork for mobile

Anthropic appears to be testing Claude Cowork support on mobile, allowing you to manage long-running Claude tasks from your phone. [...]

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Defender 25 June 2026

Poland busts SIM-swapping gang tied to millions in crypto theft

Authorities in Poland have arrested four members of an organized cybercrime group accused of breaching telecommunications partners and hijacking email accounts to carry out SIM-swapping attacks. [...]

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Defender 25 June 2026

Photo ZIP campaign targeting hospitality industry delivers Node.js implant for persistent access

Microsoft Threat Intelligence identified an active multi-stage intrusion campaign targeting hospitality organizations in Europe and Asia. The campaign uses photo-themed ZIP archives and fake image…

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Defender 25 June 2026

Order-tracking app Shop abused to push callback phishing attacks

Threat actors are increasingly abusing Shop, the order-tracking app from Shopify, by adding fake purchase receipts in users' order histories to trick them into providing sensitive data or installing…

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Defender 25 June 2026

Microsoft quietly extends free Windows 10 ESU support to October 2027

Microsoft has quietly extended its free Windows 10 Extended Security Updates (ESU) program for consumers by an additional year, allowing enrolled devices to continue receiving security updates until…

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Defender 25 June 2026

New macOS malware embeds fake errors to confuse AI analysis tools

A newly discovered macOS malware dubbed "Gaslight" is designed to confuse AI-assisted malware analysis tools by hiding prompt injection strings and fake debugging data within the executable. [...]

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Defender 25 June 2026

Microsoft a Leader in The Forrester Wave™ for Endpoint Management Platforms

Microsoft named a Leader in the Forrester Wave™: Endpoint Management Platforms, Q2 2026, with the highest scores in the current offering and strategy categories. The post Microsoft a Leader in The…

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Defender 25 June 2026

PirloTV sports piracy network disrupted as 44 domains seized

A major sports piracy ring linked to the illegal PirloTV streaming platform has been disrupted in an action that targeted 44 domains. [...]

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Defender 25 June 2026

Bluekit phishing kit adopts browser-in-the-middle for login theft

The Bluekit phishing-as-a-service platform continues to evolve with nearly 70 new hostnames identified over the past week and by adding browser-in-the-middle capabilities for improved data theft.…

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