Heck of a coincidence...
The NSA tweeted that today is#nationalpuzzleday2021.
The tweets included a puzzle within a puzzle.
Q drop#2978 includes, 'A puzzle within a puzzle' and 'NSA humor.
Note the final answer = CYBER
that number or stringer on the Q post has a meaning as well. 55 JK 25 JK bday, 362 is Castle Rock in gematria