The most common and most likely answer to this crossword clue is the 9 plus 9 letter word CAMBRIDGE ANALYTICA
I've seen this crossword clue in The Guardian
C
A
M
B
R
I
D
G
E
A
N
A
L
Y
T
I
C
A
Buddy explains!
The straight part
We know that "concern managing data?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case concern managing data? = cambridge analytica.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.