Have you ever had your money stolen from your online money processor's account?

Tweet

Today I was told that Alertpay, which I am actively using together with Paypal, is not as safe as the latter, and I might have my money stolen someday by some hacker. It was strange to get such information about a trusted online money processor. And I have not heard of any money stealth cases, neither from Alertpay accounts, nor from any other processors' accounts, like PayPal or E-gold, or Moneybookers... So, I am wondering if anybody ever had their online money stolen?