If Intuit requires users to login online, it defeats the purpose of Privacy. If I buy a software and install it on my computer, Intuit should not force me to login online. It is not a good idea. That is why I am going with H&R Block.
I am pretty sure that all systems are not secure, including Intuit servers and databases. These days banks are being hacked, financial institution are being hack. What made you think that Intuit system are not being hacked at this point? Registering your Social Security online is a very stupid idea... no matter how secure Intuit's systems are. All systems are being hacked every day. Intuit systems are not different.