Full Disclosure: reCaptcha secret key - where is the point?

[BlackHawk <hawkgotyou () gmail com>]

Reading here & there i found lot of people scared about they "secret
key" of reCaptcha coud be publically discovered;
But, at this moment, is kind of useless for an attacker, right? or at
least until we find out how the reCaptcha response is calculated..

Am i right? Suggestions?

-- 
BlackHawk - hawkgotyou () gmail com

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