Many people have confidence in the password they have built: passwords are safe as long as they are not known. In fact, it is a big mistake! 360 and Rising have published the Chinese version of the "Weak Password" list, in addition to abc123, iloveyou, qwerty and other global netizens commonly used "weak passwords", there are 666666, 888888 and other Geely passwords, "5201314" (I love you forever) These Chinese characteristics (weak passwords), which have been sent to strong emotions, have been included in the hacker's password book. They don't need to steal, they can directly "second break". Don't believe it? Try Intel's online password strength detection tool (http://tinyurl.com/c6xm2rq). 1. Simple password After opening the webpage, enter your password in the middle input box, and then click “GRADE MY PASSWORD” to see how long it takes for 123456 to crack? It turned out to be only 0 seconds. Add a letter to increase the intensity, try abc123, or 0 seconds. It seems that such a simple password is really unreliable. 2. General custom passwords and then try ordinary personally defined passwords, letters and numbers within 6 digits, such as HPI123, which are typical, but only took less than 2 seconds to crack. 3. Customize the high-intensity password to increase the strength again, 10-digit password, including uppercase and lowercase letters, numbers, special letters, etc. This is the general requirement of many websites for user passwords. Here we try Zte123456$, the incredible thing is that the crack can't be used for 2 seconds (Figure 1). For the password, the pulse above is shocking, so what are the problems with the passwords we built? An online tool provided by Microsoft can help us analyze and diagnose. First enter the Microsoft Password Issues check site (http://tinyurl.com/nd5bvr6) and enter your own passwords one by one in the password box below. Note that unless you want to learn, don't check the first checkbox on the right, which means that the password is sent back to the company's server for analysis. When you enter your password, the problem is given on the web page. Look at the Zte123456$ password, there are 5 problems, no wonder it will be cracked in less than 2 seconds (Figure 2). Generally speaking, if there are more than 3 problems in 8 digits, the modified passwords will be at least 3 times stronger. Let's change the letter, just change the order and change it to Z236t15e$4 (Figure 3). Now go to the Intel website to test, you can see that the password strength is greatly improved, it takes 16 hours to crack. Building a high-intensity password on the easy-to-remember network can find a lot of software to build high-intensity passwords, but the passwords generated by such software are really powerful, but they are also difficult to remember, such as wG-ol_Hn=GhX passwords (Figure 4 ), how to remember? In addition, the password generated by the tool also has the possibility to directly enter the hacker password dictionary. Let us build self-help and high-intensity passwords. Method 1: For example, the unit, account, and serial number complex, for example, the unit is “Computer Enthusiast”; the first online card password of ICBC can be set to: DNAHZ#ICBC#01. Through online detection, the cracking of this password takes 59109 years, the security is greatly improved, and it is easy to remember. Note that in order to avoid guessing, you can add your own secret digital information. Method 2: The personal, account, and private information complex, such as the IC name of the ICBC card, can be set to: LX#ICBC#gui1. Do not understand? Tell everyone a secret, gui is the name of catkins, 1 Well, the New Year goes further. And so on. Tips: ★ KeePass is a free and free open source software in the PC era. Its database supports advanced encryption standards (AES, Rijndael algorithm) and Twofish encryption algorithms. Open source allows everyone to understand that the preservation process is not tricky. AES encryption algorithms have been widely used in military communications to make everyone safe and secure, while free is free for everyone to use. It is necessary to know that mobile password management software is usually very expensive (1Password promotion) For $30, each major version upgrade requires an additional purchase). Therefore, I think KeePass is the preferred password management software on mobile phones. Mobile phone password storage Easy to use and memorable high-intensity passwords improve security, but it also increases the difficulty of memory, especially when you need to remember multiple passwords, it is easy to forget. In fact, with the popularity of smart phones, we can use mobile phones for password management. 1. After KeePass downloads and installs KeePass (note that you want to download it from the official website, don't just download it from the unknown website), first create a database to save account information (Figure 5), the database file name can use the default name, then enter Database password, note that this password is the password to open the database, you must keep in mind (Figure 6). After creating the database, enter the application interface (Figure 7). At this point, you can click the lower left corner to add a group to create a new group, or you can add account information to an existing group. After clicking Add Entry, you can add the corresponding account information (Figure 8). When you use it later, enter KeePass and select the corresponding database file to enter the password to enter (Figure 9). At this point, after entering the corresponding entry, you can copy the password to the clipboard or select the display password in the upper right corner to display it. Tips ★ Of course, you can also choose to create a key file to open the database. The key file can be placed in other places, such as a USB flash drive, so that if the mobile phone is lost, no key can not be opened, and a corresponding protection is added to the password stored therein. ★ Note: Be sure to do a backup of the account information database file (suffix .kdb file). Since the file encryption is encrypted with 256-bit AES, it is safe to back up to the local computer. However, don't back up your files to the cloud of KeePass. This account information is definitely an important target for hackers.