Although various researchers have already warned about security vulnerabilities in the 3G network, it seems that problems continue to be detected in 4G and even in the 5G network, which should logically correct the flaws from previous standards.
If one wonders what the consequences are for users who may become victims of 4G/5G network hacking, read the following :
Torpedo opens the door to two other attacks: Piercer, which the researchers say allows an attacker to determine an international mobile subscriber identity (IMSI) on the 4G network; and the aptly named IMSI-Cracking attack, which can brute force an IMSI number in both 4G and 5G networks, where IMSI numbers are encrypted. That puts even the newest 5G-capable devices at risk from stingrays, said Hussain, which law enforcement use to identify someone’s real-time location and log all the phones within its range. Some of the more advanced devices are believed to be able to intercept calls and text messages, he said.
From this it follows that the greatest threat to crypto users is intercept of SMS which some use as 2FA on crypto exchanges. Of course, this is a targeted attack that does not require excessive knowledge and requires equipment that can be purchased for as little as $200. Unfortunately, repair of such flaws is only possible by replacing the hardware on the part of the operator and on the part of the user, which of course is completely impracticable at the moment.
Advice for anyone using mobile networks and crypto is to be on the lookout, especially if it is public knowledge that you own a significant amount of money in crypto.
https://techcrunch.com/2019/02/24/new-4g-5g-security-flaws/
