Signed vows of secrecy, for short

NDAS

Think of the legal agreements companies often require employees to sign before sharing sensitive information—its acronym sounds like something you might whisper.

This clue plays on the phrase "signed vows of secrecy," which refers to legal agreements that prevent someone from sharing confidential information. The key is the "for short" hint—these agreements are formally called non-disclosure agreements, but they’re commonly abbreviated as NDAs. The answer drops the "non-" and uses just the first letters of the remaining words, giving you "NDAS" (plural since vows implies multiple agreements). It’s a straightforward abbreviation trick once you recognize the term.