OS X Yosemite makes use of iCloud Keychain, a system of storing encrypted keychain data between multiple Macs on which you have accounts.
OS X Yosemite na-eji ocloud Keychain eme ihe, usoro nke ịchekwa ụbọchị kọntaktị ezoro ezo n'etiti ọtụtụ Macs nke ị nwere akaụntụ.