Blumira Briefings
Staying on top of security news shouldn't be another full-time job.
Enter Blumira Briefings, our weekly panel series where security experts break down the headlines you might have missed, and explain what they actually mean for your security practice! 🔒
Each week, join a lineup of different Blumira experts (and sometimes special guests!) who will:
- Share the top threats, suspects, and risks we're seeing across our detection and response platform
- Discuss significant security stories and what they mean for YOU
- Provide practical advice you can actually implement right away
••Keep it conversational, informative, and under 30 minutes
Blumira Briefings
BlueHammer, Forst Blizzard, and a Flowise Workflow Exploit - Blumira Briefings
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Welcome to Blumira Briefings, your top headlines and trends for your security practice.
This week's episode:
- A critical and unpatched vulnerability, named "BlueHammer," has been publicly disclosed for Microsoft Windows operating systems, allowing a local attacker to gain elevated privileges up to a system-level account.
- A sophisticated espionage campaign, attributed to the Russian state-sponsored hacking group known as APT28 or Forest Blizzard, has been disrupted by U.S. authorities.
- A critical vulnerability, identified as CVE-2025-59528, in the Flowise low-code platform for building artificial intelligence (AI) workflows is currently being actively exploited by hackers
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Have a security topic you want us to cover? Let us know in the comments!
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Sources:
Experts published unpatched Windows zero-day BlueHammer
https://securityaffairs.com/190400/breaking-news/experts-published-unpatched-windows-zero-day-bluehammer.html
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Russia Hacked Routers to Steal Microsoft Office Tokens
https://krebsonsecurity.com/2026/04/russia-hacked-routers-to-steal-microsoft-office-tokens/
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Hackers exploit a critical Flowise flaw affecting thousands of AI workflows
https://www.csoonline.com/article/4155680/hackers-exploit-a-critical-flowise-flaw-affecting-thousands-of-ai-workflows.html