Replace it immediately, as mentioned above.
When I bought my boat, I knew I'd have to replace my rigging. It had Norseman fittings but the fittings and the wire all had rust all over them. I got new wire and Hi-Mod fittings and put everything together. It turned out much easier to do than I would have expected. on my 27' boat, it cost me just under $1500, but I knew confidant is my work. It's also good to know when it was last done instead of guessing.
When I bought my boat, I knew I'd have to replace my rigging. It had Norseman fittings but the fittings and the wire all had rust all over them. I got new wire and Hi-Mod fittings and put everything together. It turned out much easier to do than I would have expected. on my 27' boat, it cost me just under $1500, but I knew confidant is my work. It's also good to know when it was last done instead of guessing.