Demand > supply = price increases, demand < supply = price decreases. We all know that the laws of supply and demand set prices. This rule also applies to stock trading; however, there is a high probability of error when using this rule to judge the volume balance of buy/sell stocks in the limit order book. The key factor is the ‘remaining volume (balance).’ The volumes of stocks listed on the limit order book are meant for trading, but traders can manipulate some of the specified prices for illegal purposes. Additionally, in an uptrend, the seller submits a higher price, and the transaction is not executed immediately. Conversely, in a downtrend, the buyer sets a price to buy at a lower price, allowing the unsold balance to accumulate. In the limit order book, the principle works in reverse. Of course, it cannot be applied 100% in every case. - 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"