I’m Jim Dawson, a Solutions Engineer here at Graylog. I work with a lot of customers who have privacy concerns regarding their logs, for instance, users in Germany who fall under BDSG want anonymisation or pseudo-anonymisation of their logs to protect their employees. I wrote the article linked below to address a common question that comes up around this topic, it’s also a good primer on using Processing Pipelines.
If you have any questions or any requests for content on similar topics, please let me know. Hope you all enjoy!