When I take out a loan from the bank, the bank lends me money, and when I repay the loan, I owe that money back to the bank, plus interest, on the repayment date. However, when I sell my used car, a debt arises in which the buyer must pay me cash equivalent to the price of the used car, and I incur a performance debt in which I have to hand over the used car to the buyer. When these two different debts are exchanged, a transaction is completed. The goal of business is to make debt well and pay it back well over and over again. A transaction must create debt without exception, but a transaction that generates debt on only one side is an absolutely unfavorable contract for someone. That’s the essence of a loan agreement. There are good debts and bad debts depending on the type of debt I have to pay (or fulfill). If you do not make this distinction clearly, you are more likely to fall behind in the social system. - Joseph’s “just my thoughts”
For the security of the Internet service, we have been asked by the Internet service companies to set the password combined by more than 8 or 10 "uppercase letter+lowercase letter+number+special character". But it was obviously of no use. This security guideline was recommended by Bill Burr who worked at NIST in the USA, he suggested this way in his report. Furthermore, the user was required to change the initial password set regularly. Despite this measure, the best way of security to protect users' accounts was the notification of the alarm for attempted hacking when the hacker tried. We have only tried to change the keys despite the simple method meanwhile. Today, the world has begun to comprehend that the security problem is not encryption or confidentiality, but simply cyber-dominion control and communication. - Joseph's "just my thoughts"