On the early morning of the 17th , Beijing time , according to a research report released by the research institute on Monday, the protection mechanism for protecting Wi-Fi network security has been cracked by hackers so that they may be able to monitor communications through devices accessing the network.
Security expert Mathy Vanhoef said: "The vulnerability affects many operating systems and devices, including Android , Linux , Apple , Windows, etc." This proof-of-concept attack is called " KRACK " (Key Reload Attack), and details the methods of cracking and Video presentations have been posted on krackattacks.com .
In other words, you or better understand some:
The vast majority of Wi-Fi that you can connect to is not safe overnight. Even if you use your home router's Wi-Fi Internet access, you may be hacked.
What is WPA2 ?
WPA is called Wi-Fi Protected Access and has two standards, WPA and WPA2 . It is a cryptographic protocol that protects the security of wireless networks.
What is the impact of WPA2 cracking?
Password is no longer a secret
The most immediate effect is that your home wireless network will be vulnerable, and all your passwords, chat logs, photos, emails, etc. that you log in via WiFi may be stolen by hackers.
Android and Linux- based devices bear the brunt
Among them, Android and Linux- based devices are more affected. Since Android uses wpa_supplicant , 41 % of Android devices are more vulnerable to attacks.
How to reduce security risks?
Changing the Wi-Fi password is useless
Even if you change your home Wi-Fi password on a regular basis , it will not reduce the risk, because the Wi-Fi encryption protocol has been cracked, and knowing your password is not difficult either. However, if a hacker intends to attack your home's Wi-Fi , it needs to be physically close. Therefore, physical distance protection makes your data temporarily not very insecure.
Try to use 4G
This also means that public Wi-Fi at airports, train stations, and shopping malls is becoming more insecure, and the best way is to use 4G as much as possible . When you go out, you should still have a large-capacity card.
Launch appropriate security patches
After the incident, Google stated that it will launch the corresponding security patch in the next few weeks.
Upgrade to a more secure encryption protocol
In addition to security patches, the best solution for a more secure experience is to upgrade to a more secure encryption protocol. If the new protocol is not backwards compatible, many routers currently in use will be eliminated for security reasons.
Try to choose to visit https site
In addition to waiting for a more secure encryption protocol, try to visit the https site when browsing the web . The Wi-Fi encryption protocol is insecure, and there is a website-side encryption that protects the user's data.
Disabling the Router's Client Mode and 802.11r
In addition, the krackattacks website also gives some more professional advice: such as disable the client mode of the router (such as relay mode) and 802.11r (fast roaming).
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