Kiss your programs goodbye, because the sysop from hell has arrived. Another tag-removal card from this set, much like Lily Lockwell, which adds another interesting tool into tag-centric decks.
Keegan is a new level of trap that, once paired with a tag subroutine, especially strong or unavoidable ones such as Data Raven and Bandwidth, make runners think twice about continuing the run. Doesn't matter if they are running first click to shake the tags off later, the effect happens mid-run. Say goodbye to the only Corroder in your deck!
The downsides: cannot take effect outside of a run on the installed server, so no same turn synergy with Midseason Replacements or SEA Source and loses power once the runner gets all of their breakers out, especially if they Femme a Raven. Also, three influence, so it's harder to get multiples in another faction if you have tags in Argus Security: Protection Guaranteed or some such.
Absolutely worth an inclusion with a tag deck that wants to take the fight to the runner to slow them down. Make them put in recursion or rue the day they met Mr. Lane.