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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 23 July 2018 the world's worst botnet infected ISPs are:
1
chinanet.cn.net Number of Bots: 1341963

2
sancharnet.in Number of Bots: 465969

3
vnnic.net.vn Number of Bots: 441270

4
cnc-noc.net Number of Bots: 383178

5
airtel.in Number of Bots: 369606

6
telesp.com.br Number of Bots: 330943

7
tedata.net Number of Bots: 286482

8
telkom.co.id Number of Bots: 188372

9
telekom.gov.tr Number of Bots: 183821

10
versainter.net Number of Bots: 159232

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