When you unlock a keychain and allow anapplication to access a password, you open the door for that application to slipup and compromise the security of that password (more on this later). Afteryou have decided to trust this service, any time you are asked to store apassword you don't have to worry about the means by which it is protected.What you do need to be careful of, though, is what applications you allow tomake use of your keychain(s). Second, the storage and retrieval ofall passwords is handled by a single service, not individual applications. Over time, many applications have providedthe capability to store passwords but have failed to do so in a way that can betrusted or considered safe from compromise.
#Mac keychain access default passwor mac os x
The keychain service found on Mac OS X is significant for two major reasons.First, it uses strong cryptography. This allows for that keychain to be automatically unlockedupon login. Thename and password for this default keychain is the same as the user's loginname and password. Users can have multiple distinct keychains, but every user startsout with a single keychain, considered that user's default keychain. Whenever you use an application thatis keychain-aware, that application can store and retrieve any neededpassword(s). The basicidea is that a single password, the keychain password, is used to unlock accessto all passwords stored in that keychain.
The primary purpose of a keychain is tofacilitate the management of passwords for various applications and accountssuch as mail and ftp servers, web sites, or encrypted disk images. Mac OS X supports what are known as keychainsa secure store forcertificates, passwords, or any small bits of information to be kept private(known as secure "notes").
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