An improved technique involves creating a new lockbox mechanism which is configured to work on a new or upgraded operating platform having different operating platform parameters, and then storing confidential information within the new lockbox (e.g., a copy of credentials which are also stored at a main site). When the new lockbox is then moved to the new or upgraded operating platform, the new lockbox mechanism properly works. Such operation enables the maintained compatibility with applications, control and maintenance of lockbox security throughout, and can be performed automatically and/or remotely.