If you’re alone on an uninhabited island, you don’t need money; you only need resources and labor to process those resources for survival. In other words, there’s no need for an exchange-based economy. The exchange of goods led to the development of an economic system that dramatically increases efficiency and productivity. The monetary system was created because society consists of many people living together. To facilitate exchange, value had to be measured, and a price assigned to that value. The foundation of wealth is built on production and exchange. We all rely on others to survive. - 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"