Operation Cyber Guardian — Campaign Analysis & Threat Activity

Threat entity extracted from intelligence sources

Frequency
23
occurrences
First Seen
February 9, 2026
Last Seen
April 16, 2026

Operation Cyber Guardian is a threat campaign tracked across 5 threat clusters and 23 intelligence report mentions on ThreatCluster. First observed February 9, 2026; most recent activity April 16, 2026.

Related Threat Clusters

  • Singapore Telcos Targeted by UNC3886 Cyberattack

    In July 2025, an advanced persistent threat actor known as UNC3886 targeted Singapore's four telecommunications companies, compromising critical infrastructure. The attack was detected by the Infocomm Media Development…

    78 articles · Updated February 9, 2026
  • Singapore Develops Threat Detection Tools for Critical Infrastructure Owners

    On March 2, 2026, Singapore's government announced plans to equip critical information infrastructure owners (CIIOs) with proprietary threat detection systems to enhance their cybersecurity capabilities. This initiative…

    4 articles · Updated March 2, 2026
  • Emergence of Agentic AI Raises Governance and Security Challenges

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    3371 articles · Updated February 10, 2026
  • Singapore Increases Cyber Defence Spending Amid Rising Threats

    On February 12, 2026, Singapore announced plans to increase its budget for cybersecurity in response to a rise in cyberattacks from both state and non-state actors. The government aims to enhance its cyberdefence…

    4 articles · Updated February 12, 2026
  • Wales Faces Cyber Security Challenges Amid Rising Threats

    Research by CSG indicates that two-thirds of Welsh businesses have experienced cyber security incidents, including malware and ransomware attacks. The Welsh Government's Cyber Action Plan aims to enhance cyber…

    774 articles · Updated February 9, 2026

Recent Intelligence Reports

  • Operation Cyber Guardian — www.mddi.gov.sg · April 16, 2026
  • Staying Ahead of Cyber Threats for a Secure Regional Cyberspace — Rsis.Edu.Sg · April 15, 2026
  • Developing Capacity for Cyber Defence: Insights from Finland — Rsis.Edu.Sg · April 9, 2026
  • Singapore to equip critical information infrastructure owners with proprietary threat detection systems — Channelnewsasia · March 2, 2026
  • Budget 2026: S'pore expects security — Straitstimes · February 12, 2026
  • Singapore confirms UNC3886 espionage campaign against telecom sector, prompts major ... — Industrialcyber.Co · February 10, 2026
  • Singapore mounts largest ever cyber operation to oust APT actor — Computerweekly · February 10, 2026
  • Chinese Hackers Attacking Singapore’s Telecommunications Sector to Compromise Edge Devices — Cybersecuritynews · February 10, 2026

CVSS v3.1 Breakdown