How can I delete short messages from other people's mobile phones?

We can start by communicating with her friends, but I don't quite agree with you. Friends who need to be tested call him at 359 323673.

Cracking the password is inevitable. This paper analyzes the psychology of cryptography not from the perspective of cracking technology, but from the perspective of hacking skills. This paper does not involve specific technology at all, but is entirely about psychology and informatics. Originally, I was too lazy to write, because it was a lot of content, and I thought only a little. My opinion is just like the sky seen by a frog in a well.

However, a few months ago, I had a whim to write an outline, and I wrote it down in detail. I didn't spend much time thinking. Please forgive me.

Cryptography is to start with the user's psychology and analyze the other person's psychology, so as to crack the password faster. Mastering it well can quickly crack, shorten the cracking time and obtain user information. Cracking here only refers to hackers cracking passwords, not software registration cracking.

Analysis, mainly consider the following psychological principles:

First of all, for China people, there is generally no habit of choosing English names. It seems that I don't have an English name, so many people use Chinese Pinyin as passwords. Generally speaking, people go to the forum to register a user name. Because general abbreviations are easily robbed by others, they are generally full names. It seems that my cyh is generally registered for short, and the color coat number is rarely used. What is said here is a name. If it is a password, you should generally think backwards. Generally, we should start with the abbreviation and then go to the full name. The reason is simple: short and fast input time.

Second, numbers are also widely used. I think the most commonly used passwords are: 123, 123456 (because generally our habit is six digits, including six digits in the bank passbook, and six digits in the forum, please pay attention to this). Try the password of QQ. In fact, many people are like this. Especially novices. Passwords are usually three or six digits. The following are also commonly used: 1,1,1,123, 168,13140.

Third, birthdays are used a lot. Some people lost their passbooks and ID cards together, giving the thief money for his birthday. This is because people are afraid of forgetting, birthdays will not be forgotten, so they use. Because of the six mentioned above, 790 102 is just right for the convenience of users. I don't know: the most convenient is the most dangerous. Generally speaking, people use this habit: six people are 790 102 and four people are 79 12. If there is only one month and one day, that is, 1 ~ 9, most people use four digits, such as 7632 instead of 760302. If the date is two digits, 10 ~ 3 1, most people use six digits instead of five digits, such as 7603265433. If the month is double precision, then the date is also double precision, for example, 76 1203 instead of 76 123. Enough Rosso, hehe, generally speaking, the month and the day are the same number. Because it's more beautiful. Some people use months instead of days, such as 763. For China people, 7603 is rarely used, because it seems that 0 is redundant.

Four, I think: a person who does brute force cracking software, as long as he thinks it can be realized technically, should generally crack it in this order: numbers → letters → special symbols. Generally, the user name of the other party does not need to be capitalized, and it is mostly lowercase. For example, I just use cyh more than CYH, and I use the color coat number instead of the color coat number. Passwords should be case-sensitive. Theoretically, it should be lowercase first and then capitalized. Because users usually press caps lock instead of shift when inputting uppercase and lowercase letters, theoretically all letters should be capitalized.

5. Being a hacker is to analyze the user's information from subtle points. What can I know from the email? For example:

What can caiyihao@ 163.com know? It can be seen that the other party uses a pinyin user name, so the other party should be surnamed Cai.

What else can cyh790101@163.com know? The other party's birthday: 790 10 1. Of course, you can also see it from the home page, such as www. * * * *. This is obvious. You can also use a person's nickname to push a well-known or surname. For example, my QQ nickname is "Hao". Obviously, there is the word "good" in my name, and there are many ways to get information. The most commonly used is the search engine. It is recommended to use at least two. You can search by his name, his email, his articles and so on. Usually need more common sense. For example, the other party wrote "Guangdong dg" on QQ, and you should know that it is "Dongguan, Guangdong" in combination with geography. As for judging the other person's sex, age, study, whether he is an only child, the eldest of his brothers and sisters or the third, these are not what this article wants to talk about.

In short: observe carefully; Put yourself in the other person's shoes; I feel that "books are dead and people are alive." In this way, you can crack some passwords without tools. The average person's password will not exceed three, even if he has had a lot, it will eventually be reduced to two or three. Moreover, the passwords of all ordinary people's mailboxes are basically the same, and the passwords registered in the forum are the same, so you can get passwords in many places by cracking one.