Q1 2026 Threat Landscape Report: Zero-clicks, geopolitical tensions, and some wins for law enforcement

The first quarter of 2026 reinforced that attackers are moving faster, operating with greater coordination, and exploiting weaknesses before most organizations can respond effectively. From escalating geopolitical tensions to increasingly aggressive ransomware operations, the latest quarterly...

Update, March 13: Talos on the developing situation in the Middle East

Update history Date | Description of updates ---|--- March 13, 2026 | Talos' assessment of the cyber attack on Stryker and the elevated threat landscape. Key findings and background on Handala, the Iranian-linked threat group. March 10, 2026 | Updated guidance and recommendations, IOCs, and...

DHS Warns Pro-Iranian Hackers Likely to Target U.S. Networks After Iranian Nuclear Strikes

The United States government has warned of cyber attacks mounted by pro-Iranian groups after it launched airstrikes on Iranian nuclear sites as part of the Iran–Israel war that commenced on June 13, 2025. Stating that the ongoing conflict has created a "heightened threat environment" in the...

Microsoft shares threat intelligence at CYBERWARCON 2023

At the CYBERWARCON 2023 conference, Microsoft and LinkedIn analysts are presenting several sessions detailing analysis across multiple sets of threat actors and related activity. This blog is intended to summarize the content of the research covered in these presentations and demonstrates Microso...

Microsoft shares threat intelligence at CYBERWARCON 2023

At the CYBERWARCON 2023 conference, Microsoft and LinkedIn analysts are presenting several sessions detailing analysis across multiple sets of threat actors and related activity. This blog is intended to summarize the content of the research covered in these presentations and demonstrates Microso...

Microsoft Warns of State-Sponsored Attacks Exploiting Critical PaperCut Vulnerability

Iranian nation-state groups have now joined financially motivated actors in actively exploiting a critical flaw in PaperCut print management software, Microsoft disclosed over the weekend. The tech giant's threat intelligence team said it observed both Mango Sandstorm Mercury and Mint Sandstorm...

Breaking the Rules: A Tough Outlook for Home Page Attacks (CVE-2017-11774)

Attackers have a dirty little secret that is being used to conduct big intrusions. We’ll explain how they're "unpatching" an exploit and then provide new Outlook hardening guidance that is not available elsewhere. Specifically, this blog post covers field-tested automated registry processing for...