LinkedIn has not received any reports of unauthorised account access in the wake of the security breach. LinkedIn passwords of the service’s users are now salted as well as hashed. Salting a password makes it less likely an account will vulnerable to hackers using rainbow tables. Rainbow tables are essentially dictionaries of hashes that allow someone to discover what a user’s unencrypted password is. The larger the salt, the more different hashes exist for the same password, meaning there are too many combinations to create.”]
Source: https://www.csoonline.com/article/2131869/linkedin–no-account-breaches-in-wake-of-hack.html