Cash serves as a universal means of payment for exchanging goods and services that everyone needs. For manufacturers to continue producing these goods and services, prices must be slightly higher than the market value of cash. This is because if the value of the goods or services produced falls below the cash, manufacturers or service providers will prefer to hold cash instead of producing these goods or services. Consequently, it is accurate to say that the value of cash is less than that of the goods or services. However, people desire cash because it functions as a means of payment endowed with “compulsory circulation power.” In other words, cash has no limits on the exchange of value and possesses the capacity to reward even human life. Due to its enforced value exchange by law, people consistently strive for cash, even if it holds less value than goods. Therefore, all economic indicators and expressions of wealth are converted into cash. - 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"