An oxygen-sucking hole ripped in an airplane’s ceiling — though quite grave and potentially hazardous — should not be the only leakage concern of business travelers. Thunderous voices, loose lips, wandering eyes, lost portable devices and aggressive Customs officers are just some of the many circumstances that can compromise the confidentiality or privacy of information.

As a frequent traveler who also often advises clients and colleagues on information-security and data-leakage, I am hyper-sensitive – OK, call me just plain hyper. Over time, I have devised a series of routines to guard against disclosures of: client confidences and identities; my law firm’s proprietary secrets; and private information relating to me and my family. Hopefully, whatever your walk of life, you will find these ensuing tips instructive. Do try them at home.