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AS8075 — Microsoft Corporation Threat Intelligence

Microsoft Corporation

Autonomous System Threat Intelligence

Network Threat Summary

AS8075 (Microsoft Corporation) has 143,748 malicious IP addresses with 5,043,462 abuse reports across 35 countries. First activity recorded 2022-07-06, most recent activity 2026-08-15.

Threat Profile: The primary attack categories observed from this network are suspicious activity, severe abuse, moderate threat. This autonomous system is among the most prolific threat sources globally, with an exceptionally high concentration of malicious IP addresses. Affected countries include US, JP, IE.

Risk Assessment: CRITICAL - This autonomous system is a major source of malicious activity, ranking in the top 1% of threat networks globally. Consider blocking the entire ASN or implementing strict rate limiting.

Unique Malicious IPs
143,748
Total Abuse Reports
5,043,462
Countries Affected
35
First Seen
2022-07-06

Top Attack Categories

  • Suspicious Activity 850,622 reports
  • Severe Abuse 754,935 reports
  • Moderate Threat 67,685 reports
  • High Threat 53,314 reports
  • Aggregated Threat 39,132 reports

Top Affected Countries

  • US 2,151,387 reports
  • JP 262,387 reports
  • IE 90,883 reports

Most Reported IPs

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