The major use case for them nowadays is to help filter out the noise in your alerts. See for example a company such as GreyNoise (https://www.greynoise.io https

The major use case for them nowadays is to help filter out the noise in your alerts. See for example a company such as GreyNoise (https://www.greynoise.io https://www.greynoise.io) to help companies focus on real attacks and not just background noise/ automated attacks.