Joke Collection Website - Public benefit messages - Will personal bank card information be leaked when surfing the Internet in a public ***wlah?

Will personal bank card information be leaked when surfing the Internet in a public ***wlah?

Not necessarily, this is not absolute

As public WiFi becomes more and more common, some security risks are gradually revealed. Recently, some enthusiastic netizens posted that they discovered that their bank cards were stolen while using public WiFi. Some hackers claimed that they could steal the bank account number and password of a "coffee customer" in 15 minutes. Public WiFi safety is increasingly being questioned.

When you drink coffee and surf the Internet, is your information safe? The reporter conducted a special test on this.

Survey

80% of businesses have WiFi and most do not have a password

"Is there WiFi?" A handsome young man in his early twenties just stepped into the restaurant. Just ask the waiter. In fact, this has become a question that more and more citizens must ask after entering a consumption place. One customer even told reporters that when friends gather for dinner and choose a restaurant, the availability of WiFi has become an important condition for comparison and selection. "Priority" Consider places with WiFi."

The reporter recently visited some restaurants, Binbei Coffee Street, clothing stores, mobile phone stores, etc. in Xiamen and found that the vast majority of stores provide free WiFi. According to rough statistics, this accounts for about 80% of the total. In Binbei Coffee Street, almost every store has WiFi, which is quite dense. Among these stores that provide wireless WiFi, only a few stores will set passwords. The reporter needs to ask the staff for the password to connect. Most WiFi does not have a password, and anyone entering the store can connect to the Internet.

Reporter test

You can see the content browsed by some coffee customers

In Binbei Coffee Street, the reporter chose a cafe with no WiFi password. A network monitoring test was conducted on the second floor of the store.

The test process was very simple. According to the hacker tutorials circulated on the Internet, the reporter downloaded the relevant systems and software in advance and installed them. After arriving at the cafe, the reporter turned on the computer and found that he could receive seven or eight public WiFi signals, almost all of which had no passwords set. He chose the network of the cafe where the reporter was located to connect.

The reporter also connected his mobile phone to the same network and opened the news page of a certain portal.

Open the monitoring software, activate the monitoring mode of the laptop network card, and start scanning. Soon, the data page on the screen began to grow rapidly, indicating that the software had begun to intercept more and more data packets being transmitted over the air, and the window also showed that more than 10 people were active on the network.

After clicking on the IP address of one of the mobile devices and operating it, you will soon be able to see what the owner of the device is doing online. The reporter saw that the URL of the web page where his mobile phone stayed would be displayed in the terminal window of the monitoring software. The reporter could also see part of the activities of other coffee customers. Some were browsing news on the Internet, some were watching videos, and some were online. Forums and online activities are instantly transparent.

When the reporter used his mobile phone to log in to QQ and email, chat with friends, and send pictures, the software did not analyze the login account and password, and could not see the chat content.

“The content of web pages and video clips you browse can be easily intercepted. If a hacker uses professional means, he can easily see the content of your email and even the transmission content of some chat tools. "Internet expert Ning Mo told reporters that in a public WiFi environment, it is relatively easy for hackers to "succeed".

Public WiFi with or without a password is easy to be "hacked"

"In an unencrypted wireless network, anyone can see the information you browse unless it is HTTPS website." Lao Hou, a network expert who accompanied the reporter on the experiment, explained that no matter you use a computer, iPad or mobile phone, as long as you access the Internet through WiFi, the data may be intercepted by hacker computers. "The security of public WiFi has nothing to do with whether it is encrypted or not. Even in an encrypted wireless network, anyone with the password can see what you are browsing." For online chat, email, etc., you need to log in Regarding the verified online content, Lao Hou said that many softwares now have very good encryption technology, and "rookies" like reporters cannot get their account numbers and passwords.

In fact, the security of public WiFi is mainly determined by the URL verification method. Whether or not it is encrypted is the key.

"If the forum you log in to is not encrypted, your account and password can be easily intercepted, but if the forum you log in to uses the HTTPS encryption protocol, it will be difficult for hackers to attack."

" "Fishing WiFi" is the "big thief" of online banking

What netizens are most concerned about is whether online banking information will be stolen.

So, Lao Hou explained to the reporter in detail while operating, that you enter your personal online banking address on the computer, and when you jump to the account information input page, the URL bar changes from http to https. And there is a small padlock at the end, which means that the data entered and transmitted through this page will be encrypted by a 128-bit encryption algorithm, and only the bank can decrypt it correctly.

Therefore, even in a public WiFi environment, as long as the user operates correctly, online banking information is safe, “because in the online banking payment process, almost all users’ mobile phone SMS verification codes and dynamic password tokens are required. etc. to ensure safety."

“Those users whose online banking information has been stolen are generally invaded by phishing WiFi.” Lao Hou said that compared with public WiFi, phishing WiFi is where netizens’ personal information and online banking information are stolen. The main culprit of theft.

Phishing WiFi is a fake wireless hotspot. It has the same name as other wireless hotspots. There is nothing wrong with it at first glance. However, when your wireless device is connected, it will be scanned by the other party. If At this time, your mobile phone or computer happens to be connected to your mailbox, online banking, etc., and the other party will obtain your username and password. In serious cases, it may also be infected with a Trojan horse virus.

“Why do people always think that it is easier to be phished in a public WiFi environment? The main reason is that public WiFi provides a convenient phishing environment for criminals.”

Conclusion

How to protect privacy under public WiFi

“Public WiFi is like a road, with many people and cars. Do you think it is safe to get on the road? "As long as you follow your own path and drive your own car, you will be safe." Ning Mo used a vivid metaphor to show that as long as the user operates correctly, your privacy is safe even under public WiFi.

In a public WiFi environment, try not to send or receive very private information, photos, videos, etc.

Beware of WiFi phishing. Almost anyone can create a hotspot. Many smartphones also have built-in hotspots. One of the easiest ways to attack a computer is to pretend to be a hotspot and wait for others to connect. If you don't know which network to connect to, it's best to ask a staff member.

Beware of phishing websites. Pay more attention to the network address sent by others, because this address may be very close to the domain name address of Taobao and online banking, and the page you open is almost exactly the same as the real page.

Try to choose a browser with security authentication function. These browsers can automatically prompt you whether the page you open is safe.

For smartphone users, when downloading client software related to transactions, try to download from official channels and do not install clients from unknown sources.

When operating online banking on a mobile phone, try to use the client provided by the bank's official website instead of the web version. This can reduce the risk of logging into phishing websites.

Try to use 3G network as much as possible. The cost is relatively high and the possibility of being hacked is relatively small.