It says much of the increase came from a rise in private retirement payments, called pensions.

它称，财富增长的很大一部分来自私人退休金（即养老金）的增加。

That could provide a back-up system in the event that outages or cyber-attacks cause private payment channels to fail.

当出现因停电或者网络攻击而导致私营支付渠道不能正常运行时，它可以作为一个后备系统。