password storage: updated post

Author: greyshell

_posts/2024-09-28-password_storage.md

@@ -13,7 +13,7 @@ tags: [hashing]     # TAG names should always be lowercase
 
 - If salt or randomness is not used, identical passwords will generate the same hash.
 - As a result, an attacker can deduce that two users have the same password simply by comparing their matching hashes.
-- Building a rainbow table will be easy and fast.
+- Building a rainbow table will be easy and fast to crack the password offline.
 
 ## Store a `salted` hash generated by `fast` hashing algorithm (insecure)