Sites with blocklists of malicious IPs and URLs
It’s a good practice to block unwanted traffic to your network and company. For that you can use malicious IPs and URLs lists. Those lists are provided online and most of them for free. They differ in format, data-collection methodology and usage; therefore, you should carefully read about the list you choose before you put it in use. Here is a list of websites and services that are providing up-to-date blocklist of domains with suspicious activities.