This dataset contains all data collected by the CyberLab honeynet experiment, from May 2019. The experiment was based on the Cowrie honeypot (https://github.com/cowrie/cowrie, versions 1.6.0 and 2.0.2, see below for the timeline) deployed on approximately 50 nodes at different EU and US universities and companies. This number has varied throughout the duration of the experiment due to scaling efforts and the target node availability. All public IP addresses in the dataset are pseudonymized to protect the identity of the destination nodes. Geolocation data was added to Cowrie output messages based on the source IP address.