Noticed some altcoin pools doing stratum with SSL in an attempt to prevent man in the middle attacks, etc. Has any thought been given to doing the same for kano.is? Presumably, cgminer and forks would need to be updated as well...
The probability of updating the million or so miners around the internet is probably zero.
However, someone can't steal your work, all they could do is invalidate it, which they can do on SSL anyway by simply corrupting the packet.
i.e. SSL basically wont help.