Is it really so difficult to not make massive archives shortly before quitting your current employer? The GS programmer had the same problem. Somehow unable to simply walk away without making a backup of everything.
The rule is don't put company data on personal equipment unless you're authorized to do so. If the company data is an archive or backup, you probably want that authorization in writing.
In small companies, personal equipment might get used incidentally, but if you work for a company with a budget, their data shouldn't go on your machines.
What's the rule on this? two weeks? three months? two years?