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A new version of Android will include a switch that allows users to turn it off manually

via:快科技     time:2022/1/14 20:00:50     readed:63

Now 5G networks are accelerating, 4G networks are everywhere, older networks are being phased out, 2G networks are stronger than 3G networks for a variety of reasons, but Google is now allowing users to disable 2G networks in Android because of the security issues.

2G networks, which is the GSM network, came out in 1991, 31 years ago,2G networks were the hallmark of the mobile phone era, when security wasn't a big concern and encryption wasn't very good,There are two main security issues:

First, 2G networks use weak encryption between phones and cell towers, making it easy for hackers to intercept users' calls and text messages, or even hack phones without sending any data packets.

Second, There is no base station authentication technology on 2G networks, so fake base stations are prevalent,A lot of people receive spam messages and harassing phone calls is likely to be done by the pseudo base station, a lot of fraud.

Starting with 4G networks, these vulnerabilities have been gradually fixed, but there are base station emulators that can downgrade to 2G networks and continue to use the previous vulnerabilities, so there are now mobile users who may experience 2G security issues.

太不安全 谷歌在安卓系统中允许禁用2G网络

Google has added new options to address this problem in the new version of Android,You can enable or disable the Allow 2G function in SIM card Settings.

The feature has hardware limitations, so it's mostly available on newer smartphones, and apple doesn't have it on iphones, so it's android only

translate engine: Youdao

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