Why did my qq log in for no reason and send a lot of spam messages? What is this?

1. Change the password immediately after finding the verification code, and kill the Trojan horse. 2. After the verification code is needed, enter the observation period. After normal use of 10 ~ 20 days, the system will automatically log off; If the password is leaked again during this period, you will continue to be asked to enter the verification code. Q: What is a verification code? Answer: QQ login uses picture verification code, which is a picture containing irregular character information. Ordinary users can recognize character information with naked eyes, but the line of automatic login through malicious software (malicious users can log in to the system or website with illegal software without manually inputting numbers and passwords) will be effectively prevented. Q: Where is the verification code generally used? A: Early BBS, forums and websites all used verification codes. When registering and publishing, users can only use these functions after successfully verifying the verification code. The purpose is to prevent people from posting junk stickers and advertising stickers on the website. Q: What's the use Q: QQ login verification code? A: When QQ logs in, the verification code is used to effectively prevent hackers from logging in a large number of stolen QQ numbers in time. Hackers may use your number to send spam advertisements and viruses, transfer Q coins and game points, cheat your friends, and even delete friends, quit the group, dissolve the group, etc. And the verification code greatly delays these harmful behaviors of hackers and minimizes your losses. Q: What can't I do with Q:QQ login verification code? What is the direction of future efforts? A: It can't prevent theft, transfer of qb and deletion of friends, but it can slow down the speed of modifying user data in batches, transfer of Q coins or spam. The future direction is to optimize performance, making it easier for good people to identify and more difficult for bad people to identify; The verification code is smarter, only for the bad guys, and does not affect the good guys. Q: Why does my QQ suddenly need to enter the login verification code when logging in? Answer: If you are prompted to enter the verification code when logging in with the correct number and password, there may be the following reasons: 1. QQ password was stolen by others to send advertisements or scam messages without your knowledge, which was detected by the system. 2. Someone in the network being used (such as Internet cafes) is engaged in some behaviors that endanger the safety of QQ users. 3. The system has detected that the province where you are currently logging into QQ does not match the original province. 4.QQ uses the on-hook software to log in. Q: Why is the login verification code so difficult to identify? Answer: In order to deal with the verification code, the enemy used character recognition technology in the automatic login software (character recognition technology means that the computer automatically recognizes the characters in the picture without human eyes. Can be used by hackers to register, verification code is the relationship between spear and shield. ), so we must constantly improve to prevent the automatic identification of these softwares. The improved verification code adds some miscellaneous points and lines, so it is more difficult to identify than before. We are working hard to improve the security performance without affecting the user experience. Q: Why do I have to enter the verification code when I add or delete friends, make casual conversations and join groups? A: The verification code that appears when adding or deleting friends, temporary conversations and adding groups is to protect the interests of your friends and other normal users and prevent hackers from adding or deleting friends at will. Q: I am in an Internet cafe. Why do I need to enter the login verification code when logging in to QQ with people around me? Answer: It shows that this Internet cafe network is unsafe, and malicious users are doing things that endanger the interests of QQ users. You can report to the administrator of the Internet cafe. It is detected that the network is unsafe, and all users who use this network to log in to QQ will be required to enter a verification code to distinguish normal users from malicious users. I suggest you choose a relatively safe environment (such as home, company and other non-public internet computers. ) surf the internet, try not to surf the internet in internet cafes. Q: I logged on to multiple QQ on the same computer. Why do some numbers need to enter the login verification code, while others don't? A: Your passwords for these numbers may have been stolen, but because it takes time for the number thieves to process the numbers, some numbers may have been used by the number thieves to send advertisements or scam messages, while some numbers have not been processed; Numbers found to be spam will be required to enter the login verification code, while other numbers will not be required. Q: As the login verification code is a security measure, I need to enter the login verification code. Does this mean that my QQ is no longer safe? What should I do? A: You need to enter the login verification code, which means that the QQ number is not secure or the network is not secure. If the last login is not in the province where you often log in, and it doesn't match the actual situation of your login, it means that your QQ password has been stolen by the bad guys. The measures you should take are: modify your QQ password immediately, and use QQ doctor or other professional antivirus software to kill Trojans. Q: How to cancel the verification code? A: Please modify your QQ password immediately, and you will return to normal when you log in the next day. No login verification code is required. Please log on to another computer that is confirmed to be safe. If you want to change your QQ password on the current computer, please make sure that the computer is free of viruses and Trojans. Before changing the password, you can follow the following steps: 1. Update your windows system patch. You can use QQ doctor (with link) to detect system vulnerabilities and install patches for you. 2. Update the virus database of your antivirus software. 3. Use antivirus software.

Why did my qq log in for no reason and send a lot of spam messages? What is this?

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