From the GnuPG 2.2.17 changelog:
gpg: Ignore all key-signatures received from keyservers. This
change is required to mitigate a DoS due to keys flooded with
faked key-signatures.
With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.
– Scott Cheney, Manager of Information Security, Sierra View Medical Center