In a cash-balance plan, the company contributes a set amount of salary for each worker every year to a theoretical account for him (even though the money is actually managed in one big pot), and then credits his account with some guaranteed annual return--typically the yield on 30-year Treasuries.

FORBES: Magazine Article

This theoretical threat presupposes a compromised Google account, and Google had worked hard to reduce the possibility of hijacking accounts through tools like phishing and malware detection in Chrome and Gmail, default HTTPS in Gmail, 2-step verification, and others.

FORBES: Android Bug Would Have Allowed Phone Infections From A Computer Click