UDP - User Datagram Protocol spoof flood attack
Transmission Control Protocol Acknowledgment flood attack
Domain Name System amplification attack
Internet Protocol flood attack
Network Time Protocol amplification attack
Simple Service Discovery Protocol amplification attack
Transmission Control Protocol Synchronized flood attack
Citation formats
Share of DDoS attacks on Microsoft Azure infrastructure worldwide H2 2021, by vector
In the second semester of 2021, over ** percent of distributed denial of service (DDoS) attacks on Microsoft Azure infrastructure were User Datagram Protocol (UDP) spoof flood attacks. An UDP flood attack is when a large number of UDP packets are targeting a server with the purpose of overwhelming the device's ability to process and respond.
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Microsoft. (January 25, 2022). Distributed Denial of Service (DDoS) attacks on Microsoft Azure infrastructure worldwide in the second semester of 2021, by vector [Graph]. In ÀÖ²¥´«Ã½app×îа汾. Retrieved August 16, 2026, from /statistics/1290773/ddos-attacks-microsoft-azure-infrastructure-vector/
Microsoft. "Distributed Denial of Service (DDoS) attacks on Microsoft Azure infrastructure worldwide in the second semester of 2021, by vector." Chart. January 25, 2022. ÀÖ²¥´«Ã½app×îа汾. Accessed August 16, 2026. /statistics/1290773/ddos-attacks-microsoft-azure-infrastructure-vector/
Microsoft. (2022). Distributed Denial of Service (DDoS) attacks on Microsoft Azure infrastructure worldwide in the second semester of 2021, by vector. ÀÖ²¥´«Ã½app×îа汾. ÀÖ²¥´«Ã½app×îа汾 Inc.. Accessed: August 16, 2026. /statistics/1290773/ddos-attacks-microsoft-azure-infrastructure-vector/
Microsoft. "Distributed Denial of Service (Ddos) Attacks on Microsoft Azure Infrastructure Worldwide in The Second Semester of 2021, by Vector." ÀÖ²¥´«Ã½app×îа汾, ÀÖ²¥´«Ã½app×îа汾 Inc., 25 Jan 2022, /statistics/1290773/ddos-attacks-microsoft-azure-infrastructure-vector/
Microsoft, Distributed Denial of Service (DDoS) attacks on Microsoft Azure infrastructure worldwide in the second semester of 2021, by vector ÀÖ²¥´«Ã½app×îа汾, /statistics/1290773/ddos-attacks-microsoft-azure-infrastructure-vector/ (last visited August 16, 2026)
Distributed Denial of Service (DDoS) attacks on Microsoft Azure infrastructure worldwide in the second semester of 2021, by vector [Graph], Microsoft, January 25, 2022. [Online]. Available: /statistics/1290773/ddos-attacks-microsoft-azure-infrastructure-vector/
