Result of a scandal going viral, in brief

PRDISASTER

When a brand’s reputation takes a nosedive online, PR teams scramble to fix this six-letter crisis.

This clue plays on the idea of a scandal spreading widely online, which can be a "PR disaster" for whoever’s involved. The answer is shortened to "PRDISASTER" to fit the "in brief" hint, combining public relations (PR) with the word "disaster." It’s a straightforward abbreviation often used in media or corporate contexts when a controversy blows up.