Dumpster diving is an attack method where attackers search through physical waste, such as discarded documents and printouts, to find sensitive information that has not been properly disposed of. In the context of printing centers, this could involve attackers retrieving printed documents containing confidential data that were improperly discarded without shredding or other secure disposal methods. This emphasizes the importance of proper disposal and physical security measures in cyber hygiene practices. References = CompTIA Security+ SY0-701 Course Content: Domain 04 Security Operations. CompTIA Security+ SY0-601 Study Guide: Chapter on Physical Security and Cyber Hygiene.