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The Top 10 Worst

The World's Worst Botnet ISPs

ISPs in this chart have the highest number of detected spam-bots as listed in the Spamhaus XBL zone. Most bots can be used for spam, phishing, click-fraud, DDoS and other malicious activities.

Many issues may relate to a country's bot density including technical, policy and socioeconomic factors.

Additional and more detailed statistics can be found at the Spamhaus CBL website:

CBL breakdown by Domain

CBL breakdown by Domain Traffic

CBL breakdown by Domain Infections


Source: Spamhaus (XBL) database. Data is compiled automatically every 24 hours from the XBL database using the number of currently listed bots for each network (ISP/NSP).
The 10 Worst Botnet ISPs
As of 22 January 2020 the world's worst botnet infected ISPs are:
1
airtel.in Number of Bots: 804597

2
vnnic.net.vn Number of Bots: 779655

3
chinanet.cn.net Number of Bots: 753605

4
amazon.com Number of Bots: 617941

5
sancharnet.in Number of Bots: 356111

6
zvi.ru Number of Bots: 331451

7
algerietelecom.dz Number of Bots: 285355

8
cnc-noc.net Number of Bots: 270023

9
tedata.net Number of Bots: 236559

10
ptcl.net.pk Number of Bots: 236085

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