I've seen short password length on a bank site that showed the password field as a phone-keypad; I assume the same code would work if you dialed into their IVR.
Exactly. The failure of a cloud-backup service is only an issue if it occurs concurrently with a failure of your primary storage system. The trick is to check that the backup system works periodically instead of finding out that your backups were going to the bitbucket 3 years ago.
Thats fine unless both the house and datacenter burn down at around the same time.
Strictly speaking it is the speed of the active miners, not the total number of them.
Exactly. It is useful to be able to demonstrate that a given request/response occurs with minimal interference. Otherwise there is always questions as to whether FireFox or Curl is sending a request 'differently' somehow; being able to show that a given behavior is reproducible with a request issued over least-common-denominator telnet is inarguable.
Additionally, telnet is nearly ubiquitous while protocol analyzers are much harder to find, plus are often forbidden on desktops in large corporate environments as a security issue either due to their sniffing capability or for innate vulnerabilities.
They may be required to accept cash, but it can be very inconvenient. Cash transferred via 3rd parties (mail, drop-box, etc) could be pocketed'/lost' before it gets credited to your account, leaving you to pay the bill again plus late fees with no recourse as there is no paper trail. The alternative of spending a solid weekday (not everyone has a weekend office open) each month traveling to places where you can hand the cash to a person/machine and get an immediate receipt is not practical for many.
There are plenty of deep-packet-inspection appliances that can discern between one type of port-80 traffic and another.
Indeed. A frequent caller would normally find out that the options have changed on their first call after the change by way of being misrouted. An infrequent caller will have to listen to the prompts anyway. Telling both classes that the options have changed on every call takes up everyones time and rarely actually helps anyone.
Legally, you do not have to pay any taxes until your file your tax return, but if you earn a taxable income of US$50,000.00, you will have to write a check for US$12,500.00 when you file your taxes.
Income taxes have to be paid throughout the year; if you are in a situation where you do not have an employer to do witholding on your income then you have to pay estimated tax payments. You can't just hold on to all the income tax money untill the end of the year and pay it in a lump sum; you'll be penalized for that.