I have had a few Duracells leak, but not many.

I now buy only the Duracell industrial cells, previously known as Procell. I do this not because the industrial cells are better since AFAIK they are exactly the same product. I favour the industrial version because they are less well known, not intended to be sold retail, and are therefore hopefully always genuine rather than fakes.

Duracells are widely sold retail at high prices and I suspect that a lot of them are fakes. I wonder how many of the leaking cells were fakes ?

For anything very expensive, or safety critical I now use the Energiser L91 lithiums.

Duracell industrial batteries are about one third of the price of lithium batteries, a consideration if buying quantities, in the event of any large scale or long term emergency, I would rather have 300 alkaline AAs than 100 lithium AAs.