The company ABC recently discovered that their new product was released by the opposition before their premiere. They contract an investigator who discovered that the maid threw away papers with confi

A hack attack refers to unauthorized access to computer systems or networks - no digital intrusion of any kind occurred in this scenario.

Sniffing involves capturing and analyzing network packets as they travel across a network - it is a digital technique that does not apply to physical document retrieval.

Dumpster diving is a well-defined information-gathering technique in which an attacker physically searches garbage bins or recycling areas for discarded documents, notes, printouts, or hardware containing sensitive data. No digital or network access is required - the attacker exploits poor physical disposal practices. In this case, the opposition found confidential product papers in the garbage, which is the textbook definition of dumpster diving.

Spying is a general, non-technical term and is not a recognized specific attack classification in information security - dumpster diving is the precise technical name for this physical information-gathering technique.