Stealing digital currency
A: filter some common database operation keywords,
select, insert, update, delete, and, * etc., or filter the content through the system function addslashes
register in PHP configuration file_ globals=off; Set to off state. (the function will close the registered global variables); If receiving the value of post form, use$_ POST[' user'], If it is set to on, the value will be received by $user.
when writing SQL statements, try not to omit small quotation marks (the one above tab) and single quotation marks.
improve the skills of database naming, and name some important fields according to the characteristics of the program, so that they are not easy to be guessed.
encapsulate common methods to avoid directly exposing SQL statements.
Open PHP safe mode_ Mode = on
Open magic_ quotes_ GPC is used to prevent SQL injection. It is turned off by default. When it is turned on, it automatically converts the SQL query statement submitted by the user to & quot&# 39;& quot; Convert to & quot&# 92;&# 39;& quot;
control the output of error message, close the error message prompt, and write the error message to the system log
preprocess with mysqli or PDO
the listing conditions are lower than that of the New York Stock Exchange, but it has a history of more than 100 years
If a company wants to be listed on the US stock exchange, it needs to meet the following conditions:
(1) at least 500000 shares should be owned by the public on the market
(2) the market value should be at least US $3000000
(3) there should be at least 800 shareholders (each shareholder should own more than 100 shares)
(4) a minimum of $750000 in pre tax income is required for the previous fiscal year.
58 billion! Japan's biggest theft of digital currency in history the hot market of digital currency makes hackers salivate. On January 26, the coincheck system, a large-scale digital currency trading platform in Japan, was attacked by hackers, resulting in the theft of 58 billion yen, about 530 million US dollars of digital currency "Xinjing currency". This is the largest known theft of digital currency in history the largest digital currency theft case in the history of Japan; At 4 p.m., a day has passed since coincheck, a Japanese bitcoin trading platform, announced that a large number of digital currencies have been stolen, but there are still many victims on the scene. So far, there is still no staff down to give the victim a specific and clear explanation coincheck provides 13 kinds of digital currency trading services, including bitcoin and Xinjing currency. The trading volume once accounted for half of Japan's digital currency trading market. The instry estimates that the company has absorbed at least hundreds of billions of yen of user deposits. As the platform has a Chinese trading system, some overseas users may be affected
this one may be detained
but it has nothing to do with the previous case
just based on being cheated now. The case was quantified.