secret key compromised?

[Karol Pietrzak]

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hello.
i exported my secret key so i could import it into another
computer (i wanted to sign / decrypt @ another computer).
however, someone managed to get a copy of that exported key.
should i be worried?  a secret key isn't usable without the
passphrase... and I have a pretty good one.
what do you guys think?

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--
noodlez:   Karol Pietrzak
GPG/PGP-KeyID: 0x2BBE5057