Can Zhihu correct other people's problems?

20 10 12, Zhihu website opened. Zhihu used to be invited to register.

20 1 1 In March, Zhihu received an angel round investment from Kai-fu Lee, followed by a series of investments from Qi Ming10 million dollars.

20 13 March, Zhihu was registered to the outside world. In less than a year, the number of registered users has rapidly climbed from 400,000 to 4 million.

2065438+In June 2004, Zhihu completed the $22 million Series B financing led by Softbank Fortune.

2015165438+18 October, the financing in the C round was 55 million USD. The new investors are Tencent and sogou, with Tencent leading the investment. Previous investors Safran, Qi Ming Venture Capital and innovation works also followed suit in this round of investment.

Precautions for Internet operation:

1. Do not arbitrarily add strangers as QQ friends or WeChat friends, and do not casually accept their video or voice chat requests to avoid port attacks or personal privacy disclosure;

2. Don't open links to unknown websites at will, especially links to bad websites. When strangers send links to themselves through QQ, try not to open them;

3. Don't open emails and attachments of unknown origin casually, so as to avoid the equipment being infected with viruses, which will make the equipment unusable or the hard disk formatted;

4. Don't click on suspicious websites or pop up advertisements casually to prevent the browser from being unusable due to malicious attacks, and may also disclose sensitive files on personal terminals;

5. Try to set the file extension to open, and confirm the file attributes before opening, so as to prevent malicious files from forging icons and causing the computer to be infected with malicious viruses;

6. Don't post inappropriate comments on public platforms such as Weibo and forums, and surf the Internet in a civilized way.