Last night, some college students in China reported that their computers were attacked by viruses and their files were encrypted. The attacker said that virtual currency equivalent to 300 dollars (about 2069 yuan) was needed to unlock it. Many students' graduation thesis, graduation design and other important materials have been declared "occupied".

According to BBC and other media reports, computer blackmail virus broke out in many countries around the world and has now spread to 99 countries.

At present, Weibo and WeChat, the official websites of many universities, have issued early warning messages, saying that campus networks and classmate computers of many universities in China were infected with viruses during this period. Many students' graduation thesis, graduation design and other important materials have been declared "occupied". Some colleges and universities have issued warning messages to remind everyone not to click on unknown links and not to install anti-virus software.

It is reported that the virus is nationwide and it is suspected to spread very fast through the campus network. At present, Hezhou University, Guilin University of Electronic Technology, Guilin Institute of Aerospace Technology, Ningbo University, Zhejiang University of Traditional Chinese Medicine, Zhejiang Gongshang University, Zhejiang Sci-Tech University, Dalian Maritime University, Shandong University and many other universities have been attacked by viruses.

I would like to remind campus students in all regions that important documents must be backed up to avoid being blackmailed, especially recent graduates, and papers must be backed up! In addition, some gas stations owned by PetroChina in many parts of the country suddenly cut off at around 0: 00 today. At present, online payment methods such as Alipay, WeChat and UnionPay card cannot be used, and only cash payment can be used. The refueling business of gas stations is operating normally.

At present, 99 countries have been attacked, including Britain, the United States, China, Russian, Spanish and Italian. Avast, an anti-virus software manufacturer, said that the number of ransomware cases worldwide has increased to 75,000, and it is still spreading rapidly.

Attacks have taken place in the United States, China, Japan, Russia, Britain and other important countries, with Russia being the most seriously attacked. The attacks on Britain are mainly concentrated in the National Health Service (NHS). The computer system of at least 25 hospitals under NHS is paralyzed, and ambulances cannot be dispatched, which is likely to delay the treatment of patients and cause life-threatening concerns.