DDoS threats hit organizations worldwide—and the pressure is rising. In 2023, Cloudflare reported mitigating over 21.1 million attacks, while attack volumes surged year over year. This page breaks down common types (UDP floods, DNS and NTP amplification, and HTTP/2 Rapid Reset), then links them to real-world impacts like downtime and breach costs. You’ll also see how defenses are deployed, from cloud scrubbing and CDN blocking to on-prem mitigation.
Key Takeaways
- UDP floods accounted for 55% of all DDoS attacks in 2023 per Cloudflare.
- Akamai reported DNS amplification as 28% of volumetric attacks.
- Netscout: NTP reflection attacks made up 15% of large-scale DDoS.
- Global DDoS attacks cost businesses $52 billion in 2023 according to Statista.
- Ponemon Institute found average cost per DDoS attack at $1.2 million for enterprises in 2023.
- IBM Cost of a Data Breach 2023: DDoS contributed $4.45 million avg breach cost.
- In 2023, Cloudflare reported mitigating over 21.1 million DDoS attacks, a 58% increase from 2022.
- The number of DDoS attacks detected globally rose by 200% in the first half of 2023 compared to the same period in 2022, according to Akamai.
- Netscout observed 8.46 million DDoS attacks in 2023, marking a record high with hyper-volumetric attacks surging.
- 92% of organizations have DDoS protection per Cloudflare 2023 survey.
- Akamai: 75% use cloud scrubbing centers for mitigation.
- Netscout: On-prem mitigation deployed by 60% enterprises.
- The largest DDoS attack recorded in 2023 peaked at 3.8 Tbps by Cloudflare.
- Akamai mitigated a 2.3 Tbps attack in Q3 2023 lasting 30 minutes.
- Netscout's 2023 report detailed a 5.6 Tbps attack using 180,000 PPS.
In 2023, DDoS attacks surged and became costlier, led by UDP floods and rapid L7 disruptions.
Related reading
01 · Category
Attack Types And Vectors27 stats
01
UDP floods accounted for 55% of all DDoS attacks in 2023 per Cloudflare.
02
Akamai reported DNS amplification as 28% of volumetric attacks.
03
Netscout: NTP reflection attacks made up 15% of large-scale DDoS.
04
Imperva: HTTP/2 Rapid Reset was 20% of L7 attacks in late 2023.
05
Radware: SYN floods 40% of L4 attacks on finance.
06
Google Cloud: Memcached amplification 10% of IoT vectors.
07
Microsoft: Application layer floods 35% of total mitigated.
08
OVHcloud: SSDP amplification prevalent in 25% consumer attacks.
09
AWS: CLDAP vectors in 12% of attacks over 1 Tbps.
10
F5: Slowloris-style L7 attacks 18% on web apps.
11
Kaspersky: Botnet-based multi-vector 60% of attacks.
12
MazeBolt: Stresser services used in 70% short bursts.
13
Cisco: IoT Mirai variants 22% of botnet DDoS.
14
IBM: Ransomware DDoS uses UDP 45% of time.
15
Sophos: DNS floods 30% against MSPs.
16
Palo Alto: HTTP Floods 25% L7, SYN 35% L4.
17
Check Point: Amplification attacks 50% volumetric.
18
Fortinet: Zero-day exploits in 5% DDoS vectors.
19
Trend Micro: Challenge-response evasion in 15% L7.
20
Proofpoint: Email vector DDoS 8% of total.
21
CrowdStrike: Cloud API abuse 12% new vectors.
22
Mandiant: APT groups use DDoS 10% operations.
23
Verizon: Multi-vector in 65% of analyzed attacks.
24
Gartner: Botnets dominate 80% DDoS sources.
25
IDC: Mobile app DDoS via HTTP/3 5% emerging.
26
SANS: Reflection attacks 40% overall.
27
ENISA: State-sponsored use application layer 55%.
Interpretation
Attack Types And Vectors Interpretation
Across Attack Types And Vectors in 2023, volumetric and reflection style threats dominated with UDP floods at 55% of all DDoS attacks, while specific L4 and L7 methods like SYN floods at 40% in finance and HTTP/2 Rapid Reset reaching 20% of L7 attacks in late 2023 showed how targeting spans both network and application layers.
02 · Category
Economic Impact And Costs29 stats
01
Global DDoS attacks cost businesses $52 billion in 2023 according to Statista.
02
Ponemon Institute found average cost per DDoS attack at $1.2 million for enterprises in 2023.
03
IBM Cost of a Data Breach 2023: DDoS contributed $4.45 million avg breach cost.
04
Akamai estimated gaming industry lost $1.5 billion to DDoS downtime in 2023.
05
Netscout: Retail DDoS outages cost $500k per hour globally.
06
Imperva: Financial services avg downtime cost $900k per incident.
07
Radware: Avg global DDoS cost rose 15% to $2.5M in 2023.
08
Cloudflare: Enterprises spent $8B on DDoS mitigation in 2023.
09
Microsoft: SMBs lost $200k avg per DDoS attack.
10
OVHcloud: E-commerce sites avg $1M revenue loss per hour downtime.
11
AWS: Public sector DDoS costs $10M+ in recovery sometimes.
12
F5: Healthcare DDoS avg $600k plus compliance fines.
13
MazeBolt: Mitigation failure costs 3x more than prevention.
14
Cisco: Annual DDoS spend per org $1.5M in 2023 survey.
15
IBM X-Force: DDoS distraction led to $5M avg theft.
16
Sophos: MSP clients avg $300k DDoS loss.
17
Palo Alto: IoT DDoS insurance claims up $2B.
18
Check Point: Avg recovery time 48 hours costing $100k/day.
19
Fortinet: Manufacturing downtime $50k/minute from DDoS.
20
Trend Micro: APAC firms lost $3B to DDoS in 2023.
21
Proofpoint: Brand damage from DDoS valued at $1M+ per event.
22
CrowdStrike: Fortune 500 avg $10M annual DDoS exposure.
23
Mandiant: Ransom DDoS demands avg $100k payout.
24
Verizon: DDoS in 11% breaches added 20% to costs.
25
Gartner: DDoS mitigation market to hit $3.5B by 2026.
26
IDC: Lost productivity from DDoS $500k per incident.
27
SANS: Training to avoid DDoS costs saves $750k/org.
28
ENISA: EU critical infra DDoS costs €1B yearly.
29
Statista: Projected global DDoS costs $100B by 2025.
Interpretation
Economic Impact And Costs Interpretation
In 2023 the economic impact of DDoS attacks was stark, with businesses facing $52 billion in global losses and enterprise costs averaging $1.2 million per attack, while industries like gaming and financial services reported downtime costs of $1.5 billion and up to $900k per incident respectively.
03 · Category
Frequency And Trends30 stats
01
In 2023, Cloudflare reported mitigating over 21.1 million DDoS attacks, a 58% increase from 2022.
02
The number of DDoS attacks detected globally rose by 200% in the first half of 2023 compared to the same period in 2022, according to Akamai.
03
Netscout observed 8.46 million DDoS attacks in 2023, marking a record high with hyper-volumetric attacks surging.
04
Imperva's 2023 report noted a 30% year-over-year increase in DDoS attacks targeting gaming sectors.
05
According to Radware, DDoS attacks increased by 50% in Q3 2023, with financial services seeing the most.
06
Kaspersky recorded over 6 million DDoS attacks in H1 2023, up 20% from previous periods.
07
Arbor Networks (now NETSCOUT) reported 7.9 million attacks in 2022, with a projected 10% rise in 2023.
08
Cloudflare saw 2.9 million attacks in Q1 2023 alone, averaging 32,000 per day.
09
Akamai's Q4 2023 report indicated a 15% quarterly increase in Layer 7 DDoS attacks.
10
In 2023, DDoS attacks on Ukraine-related targets spiked by 700%, per Google Cloud.
11
Microsoft's Digital Defense Report 2023 logged 2,800 DDoS attacks mitigated for customers.
12
F5 Labs reported a 25% increase in DDoS attacks in retail during Black Friday 2023.
13
OVHcloud mitigated 1.5 million attacks in 2023, up 40% from 2022.
14
MazeBolt's 2023 study showed 35% more attacks on healthcare than average sectors.
15
Cisco's 2023 Cybersecurity Report noted 28% rise in DDoS in Asia-Pacific.
16
IBM X-Force 2023 reported DDoS as part of 20% of incidents investigated.
17
Sophos 2023 Threat Report saw 18% uptick in DDoS against MSPs.
18
Palo Alto Networks Unit 42 observed 45% increase in IoT botnet DDoS in 2023.
19
Check Point Research 2023: DDoS attacks up 50% globally.
20
Fortinet 2023 report: 22% more DDoS in manufacturing.
21
Trend Micro 2023: 1.2 million DDoS incidents detected.
22
Proofpoint 2023: DDoS in phishing campaigns rose 30%.
23
CrowdStrike 2023 Global Threat Report: DDoS up 25% in cloud.
24
Mandiant M-Trends 2023: 15% of breaches involved DDoS distraction.
25
Verizon DBIR 2023: DDoS in 11% of incidents.
26
Ponemon Institute 2023: DDoS attacks per org averaged 5 per month.
27
Gartner 2023: 50% of orgs expect more DDoS by 2025.
28
IDC 2023 survey: 40% firms faced DDoS in past year.
29
SANS Institute 2023: DDoS training requests up 60%.
30
ENISA Threat Landscape 2023: DDoS most common DDoS vector.
Interpretation
Frequency And Trends Interpretation
For the Frequency And Trends perspective, the data shows DDoS activity is clearly accelerating with Cloudflare mitigating over 21.1 million attacks in 2023, a 58% jump from 2022, and multiple other vendors reporting steep year over year increases of 200% in early 2023, making frequency the dominant trend rather than sporadic spikes.
More related reading
04 · Category
Mitigation And Defense30 stats
01
92% of organizations have DDoS protection per Cloudflare 2023 survey.
02
Akamai: 75% use cloud scrubbing centers for mitigation.
03
Netscout: On-prem mitigation deployed by 60% enterprises.
04
Imperva: CDN-based defense blocks 99% attacks automatically.
05
Radware: Behavioral analysis detects 85% zero-day DDoS.
06
Google Cloud Armor mitigated 100% of 2023 attacks under SLA.
07
Microsoft Azure DDoS Protection activated in 5 minutes avg.
08
OVHcloud: Always-on protection for 80% customers.
09
AWS Shield Advanced used by 50% large customers, 0 downtime.
10
F5: Advanced WAF stops 95% L7 DDoS.
11
Kaspersky: DDoS Intelligence service scrubbed 4.5M attacks.
12
MazeBolt: Resilience testing prevents 70% failure rates.
13
Cisco Secure DDoS: 98% efficacy rate in tests.
14
IBM Security: Managed services mitigate 90% within 3 min.
15
Sophos: XG Firewall blocks 99.9% volumetric.
16
Palo Alto: Threat Prevention module 96% L4/L7 coverage.
17
Check Point: Infinity architecture auto-scales to 10 Tbps.
18
Fortinet: FortiDDoS 99% accuracy with ML.
19
Trend Micro: TippingPoint stops 100 Gbps inline.
20
Proofpoint: Email Security blocks DDoS precursors 85%.
21
CrowdStrike: Falcon stops 95% at edge.
22
Mandiant: Consulting reduced repeat attacks by 80%.
23
Verizon: DDoS scrubbing partners used in 70% incidents.
24
Gartner: Magic Quadrant leaders mitigate 99.99% uptime.
25
IDC: Hybrid mitigation adopted by 65% orgs.
26
SANS: Training improves mitigation time by 50%.
27
ENISA: CERTs handled 85% national DDoS incidents.
28
45% orgs tested mitigation quarterly per Ponemon.
29
Cloudflare: Zero trust model blocks 100% unauthorized.
30
Akamai: Prolexic scrubbed 100% record attacks.
Interpretation
Mitigation And Defense Interpretation
Mitigation and defense is becoming highly automated and widely adopted, with 92% of organizations using DDoS protection and solutions like CDN based defense and Google Cloud Armor blocking or mitigating nearly all attacks, including Imperva’s 99% automatic blocks and Google Cloud Armor’s 100% mitigation of 2023 attacks under SLA.
05 · Category
Size And Duration30 stats
01
The largest DDoS attack recorded in 2023 peaked at 3.8 Tbps by Cloudflare.
02
Akamai mitigated a 2.3 Tbps attack in Q3 2023 lasting 30 minutes.
03
Netscout's 2023 report detailed a 5.6 Tbps attack using 180,000 PPS.
04
Imperva blocked a 1.2 Tbps UDP flood in gaming, duration 2 hours.
05
Radware absorbed 1.5 Tbps attack on finance site for 45 minutes.
06
Google Cloud mitigated 398 Mpps attack, equivalent to 2.5 Tbps in 2023.
07
Microsoft stopped 3.47 Tbps attack in Oct 2023, lasted 10 minutes.
08
OVHcloud handled 1.8 Tbps NTP amplification attack for 1 hour.
09
AWS Shield recorded 2.3 Tbps CLDAP attack in 2023.
10
F5 mitigated 1 Tbps DNS attack lasting 3 hours on e-commerce.
11
Cloudflare's longest attack in 2023 was 97 days continuous low-level.
12
Akamai's average attack size grew to 15 Gbps in 2023 from 10 Gbps.
13
Netscout: 70% of attacks under 1 Gbps but multi-vector, avg duration 10 min.
14
Imperva: Layer 7 attacks averaged 500 Mpps, up 20% duration to 1 hour.
15
Radware: Multi-vector attacks averaged 2 hours in Q4 2023.
16
Kaspersky: Average botnet DDoS lasted 4 hours at 100 Gbps in 2023.
17
MazeBolt: Stressor bots generated up to 500 Gbps peaks.
18
Cisco: IoT DDoS averaged 20 Gbps, duration 30-60 min.
19
IBM: Application DDoS up to 100 Mpps for 2 hours.
20
Sophos: Ransomware-linked DDoS at 50 Gbps avg.
21
Palo Alto: Memcached amp attacks hit 1 Tbps in tests.
22
Check Point: SYN flood avg 10 Gbps, 15 min duration.
23
Fortinet: UDP floods avg 200 Gbps peaks.
24
Trend Micro: Avg HTTP flood 5 Gbps for 1.5 hours.
25
Proofpoint: Email DDoS adjunct at 1 Mpps.
26
CrowdStrike: Falcon blocked 300 Gbps avg enterprise attack.
27
Mandiant: State-sponsored DDoS up to 4 Tbps.
28
Verizon: Avg volumetric DDoS 50 Gbps in breaches.
29
Ponemon: Avg attack duration 25 minutes for enterprises.
30
Gartner: Predicted 5 Tbps attacks by 2025 avg size.
Interpretation
Size And Duration Interpretation
Across 2023, the “Size and Duration” data shows attacks ranged from short bursts to sustained waves, with peak sizes hitting 5.6 Tbps and even the longest incidents lasting up to 2 hours, underscoring that both very large throughput and prolonged targeting are key realities for defenses.
report visual · Comparison
DDoS activity is rising (2022 → 2023)
Multiple reports show sharp year-over-year increases in detected and mitigated DDoS activity from 2022 to 2023.
In 2023, DDoS attacks on Ukraine-related targets spiked by 700%, per Google Cloud.700%
The number of DDoS attacks detected globally rose by 200% in the first half of 2023 compared to the same period in 2022,
200%
In 2023, Cloudflare reported mitigating over 21.1 million DDoS attacks, a 58% increase from 2022.
58%
Reference
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
APA
Helena Kowalczyk. (2026, February 13). Ddos Attack Statistics. Gitnux. https://gitnux.org/ddos-attack-statistics
MLA
Helena Kowalczyk. "Ddos Attack Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/ddos-attack-statistics.
Chicago
Helena Kowalczyk. 2026. "Ddos Attack Statistics." Gitnux. https://gitnux.org/ddos-attack-statistics.
Sources & references
29 datasets cited across this report · attribution is report-level
akamai.com
aws.amazon.com