google still ‘not being evil’

how do companies (yahoo!) develop technologies (DomainKeys signatures) that they themselves could use, but then NOT use them?

Gmail Begins Signing Email with DomainKeys: “According to a post at IETF’s MAIL-SIG list, Google has begun to sign outgoing email from Gmail with Yahoo’s DomainKeys signatures. This is the first large provider of email that is actually doing so (not even Yahoo has started that yet).””

(Via Slashdot.)

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