When I query my own copy of the LV DB for “infosec security netsec opsec sigsec hack phreak 2600 digital crypt stego defen defcon” (it does a logical OR on all those tokens), results are:

baseurl = lemmy.securitycafe.ca
   desc = A Lemmy instance for the InfoSec community and users of securitycafe.ca
   tags = []

baseurl = digipres.cafe
   desc = A community notice board and discussion space for all things digital preservation, including digital-GLAM, and digital information records management.
   tags = []
   
baseurl = lemmy.dbzer0.com
   desc = Be Weird, Download a Car, Generate Art, Screw Copyrights, Do Maths
   tags = ["anarchist","adhd","neurodivergence","anarchism","pirate cove","hosted in eu","fuck around and find out","anti-cryptocurrency","pro-lgbtq","antifa","pro-science","SFW","anti-tankie","filesharing","AI","copylefts","anti-copyrights","acab"]

baseurl = crazypeople.online
   desc = A digital retreat from a world gone mad.
   tags = ["neurodivergence","friendly","general purpose","moderated","lemmy","lgbtq friendly","english","general","small instance","powered by renewable energy","acab","anarchist","music","memes","weed","pokemon","racing"]

No hit on infosec.pub because tags and description are empty fields. Of course if I search the baseurls themselves then infosec.pub hits, but it’s a bit incidental. Infosec.pub may not be as findable as the owner(s) might want it to be.

(note about the results: if anyone is wondering why so few records resulted in that query, Cloudflare instances are filtered out of my searches. The unfiltered list in this sample query is larger)