Digital currency wallet cannot be upgraded

1.

in terms of cloth storage and mining, I recommend Heshu hardware wallet and jiajiabao intelligent home miner. The core advantage of the proct is safety

take sum hardware wallet as an example. The advantages of sum hardware wallet are as follows:

1. The private key seed is encrypted layer by layer, physically isolated and never touched the Internet.

firstly, when creating the wallet, the seed password is generated and stored in the local encryption chip, and the 10 bit payment password is required

then, the transaction is made in the wallet. At this time, the user needs to enter the payment password to obtain the private key to digitally sign the transaction, and the transaction is completed. In addition, the private key seed is permanently stored in the chip, which is physically isolated and never touches the Internet. There is no need to worry about my password being stolen by hackers

Second, the bank system verifies the financial level motherboard and encryption chip

uses the bank system to verify the financial level motherboard, and the private key seed is stored in the chip. If the proct is stolen or lost, and destroyed by malicious violence, the chip will trigger a self destruct circuit, and immediately permanently and irrecoverably delete all the information in the area

Third, it supports the withdrawal of global bitcoin ATM, which is convenient and fast

the reason why digital assets attract the attention of many fields in the world is that it is creating a global fast circulation, and the larger the circulation field is, the wider the scope is, and the higher its use value is. The core of digital assets is the medium it acts on among currencies. The Heshu wallet has built-in many mainstream exchanges in the world. It can trade digital assets anytime and anywhere. With one machine in hand, it can walk around the world without worry, and no longer have to worry about exchanging foreign currency

Different from conventional digital wallets, multi signature wallets need the authorization of multiple key holders to transfer digital currency, so the security of multi signature wallets is higher. Ordinary Wallet: a wants to transfer a bitcoin to X. A only needs his signature (using the private key) to complete the transaction. Sum Wallet: if a wants to transfer a bitcoin to x, a multi signature verification is set (at least two signatures of Abc3 indivials are required to transfer the money), then a needs B or C to complete the signature (using the private key) when a wants to transfer the money to X. I hope I can help you. Thank you

2.

Digital currency carrier is digital currency wallet

digital currency is an alternative to paper money

functions and properties are exactly the same as banknotes, but the form is digital

Therefore, it can be seen that the use of digital currency will be more secure

In addition, digital currency has unique coding, and there is no way to forge it

and whose wallet digital currency enters may generate traceable information codes, including the identity information of the wallet owner. In this way, as long as the digital currency is spent or transferred, it is very easy to trace

even in the future, if big data and Internet of things technology are further upgraded, where you spend digital currency may be traceable, including spending a few yuan and so on, which can be easily known and traceable

in this case, your mobile phone is lost. On the one hand, it is difficult for the person who finds it to crack many passwords on the mobile phone. If the person who finds it takes a lot of effort to break the password, then if he wants to spend money or transfer money, it is also traceable

3. What you lost is your mobile phone, not your account number. Just find the account number holding the currency

4. Brief introction: Hubei Tongcheng County Jinshan Mining Co., Ltd. is a proction enterprise specialized in mining potassium, albite and processing in Tongcheng county. After years of investment, the company owns a number of mining sites and processing proction lines with mining rights. It has more than 200 workers and more than 20 professional mining and processing technicians, with an annual mining capacity of 100000 tons and an annual processing capacity of 50000 tons
legal representative: Wu Weijun
time of establishment: May 24, 2004
registered capital: RMB 500000
Instrial and commercial registration number: 42232400001464
enterprise type: limited liability company (invested or controlled by natural person)
address: Dajie village, Beigang Town, Tongcheng County

5. Safe and reliable digital wallet should be designed from at least five dimensions:
1. Security risk of running environment
the core file of encrypted digital currency Wallet - private key / mnemonics is stored on the terminal device, whether it is PC or mobile terminal, if the terminal device appears unsafe phenomenon, it has a very high security risk for private key / mnemonics
at the beginning of design, a secure digital wallet can avoid the possibility of private key / mnemonics being stolen e to the running environment. The security problems of the running environment on the terminal mainly include virus software, operating system vulnerabilities and hardware vulnerabilities
2. The security risk of network transmission
the security of network transmission is more reflected in the ability to resist man in the middle attack. Man in the middle attack means that the attacker creates independent contact with both ends of the communication and exchanges the data they receive, so that both ends of the communication think that they are talking directly with each other through a private connection, but in fact the whole conversation is completely controlled by the attacker
although most digital wallet applications use the HTTPS protocol to communicate with the server, the man in the middle attack method is to get the content of the HTTPS protocol by installing a digital certificate in the user terminal
a secure digital wallet needs to be able to scan the legality of all the digital certificates in the terminal, check the proxy settings in the network transmission process, and ensure the security of the basic network communication environment
in the development of digital wallet, whether to use two-way verification for communication verification at the network transmission level is also an important criterion to measure the security of a digital wallet application
3. The security risk of file storage mode
for the private key / mnemonics of digital wallet, the storage mode of terminal device also needs to be paid attention to in the security design. The access right of private key / mnemonic file directory, the form of private key / mnemonic file storage and the design of encryption algorithm all need to be strictly designed
when we analyze the security of several mainstream digital wallets, we find that even the well-known digital wallets are random in the storage of private key / mnemonic words. There are both plaintext storage and encrypted storage, but the decryption key is fixed in the code, which can not play any role in security defense
4. The security risk of the application itself
the security risk of the application itself mainly focuses on the security defense of the application installation package itself
whether the application installation package has the ability of anti tampering is a very core technical ability. In addition, memory security, anti debugging ability, life cycle management of private key / mnemonics, security of debugging log and security of development process also need to be enhanced
5. Security risk of data backup
if the mobile application can be backed up, it can use the machine with more powerful computing performance to brutally crack the private key / mnemonics. For example, if android:allowBackup Property is set to allow backup, then the backup mechanism of the system can be used to back up the application data files, and the private key / mnemonics of the encrypted digital currency will be backed up to the external media, which breaks the security boundary design of the operating system from another direction
for the majority of users, the security of digital wallet also means the security of wealth, so we must be careful when choosing digital wallet.

6. I guess I'll have to solve the problem of living alone first, and then I'll think about it... Finally, how to use digital currency wallet..

7. The upgrade interruption may be that the memory of the mobile phone is too small. Just unload your wallet and download it again.

8. If it doesn't work, consider compatibility. Maybe the mobile phone doesn't support it
however, this situation is rare
you can contact the customer service of one wallet to ask
ask the mobile phone repairer to check if it's a problem.