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
Yep.
And they say: Follow@NSACyber
to get updated information on Cybersecurity advisories and guidance!