What is L.yimg.com?
L.yimg.com, a legal domain, is a subdomain of Yahoo. Its existence cannot bring you any other hazards beside it is able to make you enter tis domain without your approval. However, this problem can be resolved as long as you reset your browser settings.
In my opinion, it is good for you to distinguish legal domain and browser hijacker. If longing for the differences between legal domain and browser hijacker, you have to know the possible issues or potential threats triggered by browser hijacker.