They Work For Dogs, Too

So how exactly does a dog keep a secret identity?

Krytpo is on a mission in space to rescue some other hero dogs (more on that later today).  So he needs to let himself be captured by the bad guys, so he can find out where the heroes are being kept. Which means he can't let them know he's Krypto (as opposed to some other hero dog), because of course everyone would know that Krytpo wouldn't be captured so easily.

The only reasonable solution?

The Silver Age, man. The Silver Age.

From Superboy #131 (1966). More Krypto later today...