They are lauching a feature that anyone can enable and let's you log in to Google using your existing password and a special second password that changes.
Through the M-PESA money transfer system, subscribers deposit cash through registered agents and notify recipients by text message to collect their money at any one of hundreds of convenient locations.
Basically, when people's cards were lost or stolen or expired, they were forced to actively choose whether or not to renew whatever subscriptions they were signed up for.
16. When CareerSite's agent sends out messages to those who have signed up for its service, for example, it includes only three potential jobs—those it considers the best matches.