How to get to Nanjing Binjiang Convention Center
bus line: Metro Line 3 → Metro Line 1, the whole journey is about 8.2km
1. Walk 470 meters from Tianjin North Station to North Station
2. Take Metro Line 3, pass 6 stations to Yingkou station
3. Take Metro Line 1, pass 1 station to Xiaolou station
4. Walk 390 meters to Tianjin Kaide international trade resort
On May 12, the network information security working group (Security Working Group) of the ecation informatization branch of the Chinese society of higher ecation received reports from a number of universities, reflecting that a large number of school computers were infected with blackmail virus, and important files were encrypted, similar to the figure below
after a preliminary investigation, the spread of this kind of blackmail virus took advantage of the SMB vulnerability based on port 445. Some schools infected a large number of computers, and a large number of important information was encrypted. Only by paying a high amount of bitcoin ransom can the recovered files be decrypted, resulting in serious losses. The code is related to the hacker toolkit used by equation group, which was released by shadow brokers on April 14. The ethernalblue mole is an SMB vulnerability exploiter, which can attack windows machine with 445 ports open and implement remote command execution. Microsoft released ms17-010 patch in March this year to fix the SMB vulnerability exploited by Ethernet blue. At present, a variety of attack codes based on eternalblue have been widely spread on the Internet. In addition to binding blackmail virus, it is also found that there are many other remote utilization methods such as implanting remote control Trojan horse
according to the statistics of 360 company, at present, at least 5000 machines are attacked by remote attack based on Ethernet blue every day in China, and the attack scale is expanding rapidly
personal precautions:
1. The processing method of not upgrading the operating system (not recommended, only temporary relief):
enable and open "Windows Firewall", enter "advanced settings", and disable "file and printer sharing" related rules in inbound rules
2. How to upgrade the operating system (recommended):
it is recommended that teachers and students use automatic update to upgrade to the latest version of windows
School mitigation measures:
1
The connection of 135 / 137 / 139 / 445 ports is forbidden in the core backbone switching and routing equipment of campus networkrecommended reinforcement measures:
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2
3. Stop using Windows XP, windows 2003 and other operating systems that Microsoft no longer provides security updates
Hello, what do you want to ask is how to develop blockchain? Or how to develop digital currency exchange? Blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. The development of digital currency exchange needs blockchain technology. A general process is for your reference:
< UL >select a jurisdiction suitable for your needs and budget
open your company and open a company bank account (the account is used for business transactions, not customer funds)
inject capital into your digital currency exchange
purchase / develop digital currency exchange system
create a token or coin that can be traded with BTC, ETH, etc. It supports multiple digital currency transaction pairs and multiple legal currency transactions. It can provide more transaction pairs, establish compliance system and keep relevant records, such as KYC, AML and other rules
hire employees who focus on compliance and banking business (in addition to the original marketing personnel, they need to be hired separately), do a good job of self-regulation, and prepare for applying for international license in the future
apply for or negotiate to obtain a digital currency license in the region where you will operate. At present, many well-known digital currency exchanges have not obtained a license
establish a debit card or other payment system to facilitate exchange users to pay money without using telegraphic transfer
create a dollar support anchor token (similar to usdt) that can be stored in an electronic wallet or used for trading. The main purpose of the anchor token is to rece the transaction fees caused by telegraphic transfer or exchange money. The anchor token needs to have full reserves in banks in the United States
apply for a digital currency licence in some jurisdictions where your customers are located. That is to say, if you plan to list in the UK, you need to obtain a UK license
set up a bank account specially dealing with users' funds
in the above tasks, the most difficult step is step 12 - opening a bank account dedicated to handling users' funds. The preparation work from step 1 to step 11 is very important for step 12. The improvement of the preparation work will help you to obtain the bank account smoothly. At present, about 80% of the assistance requests are related to the final opening of the bank account specially dealing with the user's funds. If you don't have your own development team, you'd better choose a professional service provider like masterdax, which is very helpful in terms of time and personnel cost
the second method: Level 3 furnace, level 2 headquarters, and 3 Star Destroyer.