Team Cymru

We are proud of the rigorous work our Threat Intelligence Advisors, like Will Thomas, do to equip the global community of defenders. Extracting actionable intelligence from massive ransomware leaks requires structured data analytics. In a recent podcast episode, Will discusses his methodology for parsing the vast Conti dataset using tools like Cyber Chef and Elastic Search. Sharing these tactical approaches ensures practitioners have the knowledge to hunt effectively and disrupt adversary operations. #ThreatIntelligence #IncidentResponse #CTI #CyberSecurity

When borderless cybercriminal networks exploit regional blind spots, defense requires global cooperation and internet-scale visibility. Team Cymru recently acted as a private-sector intelligence partner in INTERPOL’s Operation Ramz—a first-of-its-kind cybercrime operation across 13 countries in the Middle East and North Africa (MENA) region. By delivering external threat intelligence and context-rich telemetry, we helped law enforcement map adversary infrastructure, track illegal cyber activities, and convert raw data into actionable operational leads. The joint operation targeted malicious infrastructure underpinning phishing, malware, and large-scale cyber scams, delivering significant real-world impact: -> 201 individuals arrested and 382 additional suspects identified. -> 53 malicious servers dismantled and seized across participating jurisdictions. -> 3,867 victims identified and protected from further exploitation. -> Nearly 8,000 pieces of critical intelligence disseminated to drive regional investigations. Dismantling the infrastructure that adversaries depend on is central to our mission. By empowering global defenders with the visibility needed to turn technical signals into decisive action, we actively make it harder, riskier, and more expensive for cybercriminals to operate. Read the full briefing: https://ow.ly/F7iF50Z16g3 #ThreatIntelligence #Cybercrime #IncidentResponse #Infosec

Accepting default Windows log sizes actively shortens your forensic timeline during an incident. In the latest Future of Threat Intelligence podcast, Eli W. and Unit 42's Andrew Rathbun detail how a fire-and-forget approach to logging directly benefits adversaries. Inside the briefing: - Why stale Sysmon deployments create critical enterprise blind spots. - Endpoint indicators for DPRK fake IT workers, including USB artifact timestamps. - Why treating the $J USN Journal as a definitive file system ledger is non-negotiable. Listen to the full episode: https://lnkd.in/d3pfK3rr #ThreatIntelligence #IncidentResponse #DFIR #InfoSec

If your threat model assumes adversaries need deep technical expertise to target your infrastructure, you need an update. An attacker with zero prior IoT experience recently compromised a government network, using commercial LLMs to do the heavy lifting. Claude was used to generate massive, custom Python frameworks for SCADA enumeration and credential harvesting, while ChatGPT acted as the analyst to structure the outputs. While the OT breach was ultimately unsuccessful, vast amounts of sensitive IT data were stolen. The takeaway is clear: the barrier to entry for complex, multi-stage intrusions has vanished. On this week's Dragon News Bytes, Eli W. and Stephen Campbell break down how AI is accelerating adversary tradecraft at scale, and what it means for the defenders tracking them. Catch the full episode here: https://lnkd.in/e9XT5fVd #CyberSecurity #ThreatIntel #TeamCymru #DragonNewsBytes #OTSecurity #ArtificialIntelligence

Artificial intelligence is a force multiplier for incident response, but it is not a source of forensic ground truth. Relying on it without strict validation introduces critical errors into investigations. In our newest threat intelligence briefing, Team Cymru's Eli W. and Unit 42's Andrew Rathbun detail how to practically deploy AI during incident response: - AI rapidly accelerates the analysis of unfamiliar log syntax, such as translating Linux audit log timestamps into readable formats. - Hallucinations remain a persistent risk, requiring experienced analysts to validate outputs against raw data. - When coupled with robust native logging, such as properly sized Volume Shadow Copies and the $J USN Journal, responders can efficiently map exact intrusion timelines. Watch the clip and access the full episode: https://lnkd.in/d3pfK3rr #IncidentResponse #ThreatHunting #CyberSecurity

RISEx Chicago is just one month away. Effective defense requires unvarnished intelligence and a trusted network. This is a TLP:RED environment designed specifically for those actively defending networks and investigating adversary operations. - Dissect peer-led case studies on adversary infrastructure. - Exchange unfiltered threat data in a secure, vetted environment. We've built a global community of defenders because unified intelligence sharing is how we stay ahead of emerging threats and protect critical infrastructure. Just a few spots remain. Apply for an invitation: https://ow.ly/RFHR50YVFx1 #CTI #SOC #CyberSecurity #ThreatIntelligence"

Threat actors make mistakes. Defenders must capitalize on them. In the latest Dragon News Bytes episode, Eli W., Will Baxter, and Stephen Campbell break down the most pressing threats impacting security teams this week. • The transition from misconfigurations to CI/CD pipeline exploits, including the recent SAP software package compromise. • The cyberkinetic impact of the Iran conflict, and how it targets Western financial and healthcare sectors. • AI-assisted vulnerability discovery, including the recent local privilege escalation found in Linux. We share these insights to empower the global community of defenders to work together and stay ahead of the adversary. Listen to the briefing: https://lnkd.in/dZ6bmMSC #ThreatHunting #IncidentResponse #CTI #TeamCymru

Calling all cybersecurity leaders in Washington D.C. - we are excited to be bringing our RISEx event series to the DC Metro area on Thursday, June 11! Team Cymru is proud to partner with Deloitte in uniting hands-on security professionals who are actively navigating today’s evolving threat landscape for this exclusive event. Expect practical insights, peer-driven discussion, and meaningful connections with others tackling similar challenges across threat detection, response, risk, and resilience. If you value real-world perspectives over slide decks and authentic conversation over sales pitches, this event is for you. Space is limited. Register now to secure your invitation and connect with the D.C. security community. https://lnkd.in/eiHz7__P #CyberSecurity #InfoSec #RISExDC #Community Richard Dufty, Robert Oostergetel, Meg Lambros, Connor Clancy, Eli W., Stephen Campbell, Will Baxter, Shandi Pettine Fischer

Endpoint detection is insufficient against modern nation-state reconnaissance within the Defense Industrial Base. Adversaries are actively mapping infrastructure and developing access long before executing disruptive events. The intelligence reveals distinct operational shifts: - Threat actors increasingly compromise edge routers and VPN concentrators where endpoint agents cannot be deployed. - Passive DNS analysis and NetFlow pattern recognition surface pre-positioning activity that traditional controls miss. - JA4+ TLS fingerprinting exposes command and control handshakes, even when traffic is encrypted on trusted infrastructure. Access the complete report: https://ow.ly/ijt950YStVK #ThreatHunting #DIB #CyberSecurity #SOC

Today, we are excited to launch Pure Signal™ MCP Server, the industry’s first purpose-built MCP for threat intelligence. Instead of dumping raw data that causes context-window bloat, our MCP Server returns investigation-grade, structured intelligence specifically optimized for LLM reasoning. Here is what Pure Signal™ MCP Server delivers for your team today: - Connects AI agents directly to the world's largest threat intelligence data ocean. - Integrates seamlessly with Anthropic Claude, Microsoft Security Copilot, and any custom AI agent. - Returns structured, context-rich data designed specifically for LLM reasoning, not raw payloads. And the kicker: No custom integrations. No new contracts for active Pure Signal™ Scout users. No problems. Aren’t yet a Team Cymru data consumer, let us know. We’d love to help you “carmelize onions” too. Activate your agents today: https://lnkd.in/emVMv9wH  #AgenticAI #ModelContextProtocol #SecOps #TeamCymru