The monthly bills (mortgage and utilities) I pay by check mailed through US Postal Service. For in person purchases (groceries, gas, etc.), I pay cash. I have one credit card which I use only for on-line purchases and pay it off when I get the monthly statement. Last month, I forgot about the CC bill until a few days before it was due so I paid it over the phone.
There was a time when everything was auto pay. One month, when I had purchased a new phone, AT&T billed the CC waaay over the agreed amount. I called the CC company and they refused to reverse the charge because it was auto pay. I had to go to the AT&T store and raise a big stink. They did reverse it but it was a real PITA and that was when I stopped everything auto pay (auto pay being billed to my CC). Never again.
In addition, my 401K account information was stolen by an employee of the company. They notified me by mail and signed me up for one of those companies (Life Lock?) that will supposedly help you if the account is hacked. I called Life Lock and asked what they would do if that happened. They said they would send the paperwork. That's all. I closed the account; they gave me a very difficult time doing that. I had to threaten to show up in their office with the police.
Bank and credit union do not have my email address. I told them I don't have one and firmly instructed them to NOT allow any internet access to my accounts. Not even me. I get a monthly paper statement (for which they charge $6 but I don't care). They are fairly close to my home so I can go in person for questions or cash. The tellers and managers know me by sight. If somebody accessed my phone or computer, they would find NO financial info.
I have had two checks "lost in the mail". One was to AT&T for cell phone, which I switched to pre-pay. The other was for the state income tax. I noticed the check had not cleared my account so I cancelled payment on that "lost" check and sent another. Now I send it registered mail so there is a tracking number.