Active Cyber Defence (ACD) - The Third Year
The year three report covers 2019 and aims to highlight the achievements and efforts made by the Active Cyber Defence programme.
AI Analysis
Technical Summary
The ACD programme is designed to protect the majority of UK users from cyber harm by proactively removing malicious content and improving security standards. The 2019 report details ongoing services like the Takedown Service, which reduces malicious internet content, and efforts to increase DMARC adoption to secure email. Additionally, a prototype for detecting subdomain hijacking vulnerabilities was developed. These efforts collectively aim to reduce cyber threats at scale through automation and collaboration with organisations.
Potential Impact
This report does not describe a specific vulnerability or exploit but rather documents the positive impact of the ACD programme's defensive measures in reducing cyber threats in the UK. There are no known exploits or direct threats described in this content.
Mitigation Recommendations
No direct mitigation actions are required by users or organisations based on this report. The ACD programme itself implements automated and scalable defensive measures. Organisations should continue to follow guidance from the NCSC and consider adopting recommended security standards such as DMARC as part of their email security posture.
Active Cyber Defence (ACD) - The Third Year
Description
The year three report covers 2019 and aims to highlight the achievements and efforts made by the Active Cyber Defence programme.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The ACD programme is designed to protect the majority of UK users from cyber harm by proactively removing malicious content and improving security standards. The 2019 report details ongoing services like the Takedown Service, which reduces malicious internet content, and efforts to increase DMARC adoption to secure email. Additionally, a prototype for detecting subdomain hijacking vulnerabilities was developed. These efforts collectively aim to reduce cyber threats at scale through automation and collaboration with organisations.
Potential Impact
This report does not describe a specific vulnerability or exploit but rather documents the positive impact of the ACD programme's defensive measures in reducing cyber threats in the UK. There are no known exploits or direct threats described in this content.
Mitigation Recommendations
No direct mitigation actions are required by users or organisations based on this report. The ACD programme itself implements automated and scalable defensive measures. Organisations should continue to follow guidance from the NCSC and consider adopting recommended security standards such as DMARC as part of their email security posture.
Technical Details
- Article Source
- {"url":"https://www.ncsc.gov.uk/report/acd-report-year-three","fetched":true,"fetchedAt":"2026-05-26T20:36:39.571Z","wordCount":824}
Threat ID: 6a160458e29bf47b505ee29a
Added to database: 5/26/2026, 8:36:40 PM
Last enriched: 5/26/2026, 8:37:03 PM
Last updated: 5/26/2026, 10:54:37 PM
Views: 5
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