If that's the problem, you just say "this person had lax security" or "their computer was compromised." In the absence of real proof that will be the default expectation anyway.

Ah, I read it too fast and missed the theft context regarding Satoshi's wallet. Thanks. Part of me hopes that in the not-too-distant future Satoshi will do a tiny transaction on his wallet just so all the speculation ramps up again and we get another wave of entertainment.