Hi purplebear, welcome back. Glad you found us.
I think you mean Adsense and yes it's a leak.
Lifetime cookies are cookies that have no expiration and last forever meaning until they are deleted or overwritten.
Yes parasites can still overwrite cookies even if they are liftetime cookie. But remember parasites can only steal commmission in affiliate programs that allow them in. So look for prgrams that state they are parasite-free and have clauses in their TOS.
To find your other posts, just click and view your profile and there will be a link to all of them.
