With the World Mobile Congress going on right now, we’re bombarded with 5G-related news and products even more than usual. One of the features 5G is promising to bring is improved signal security. That might be true, but a team of scientists has discovered that even the newest standard is not flawless, and what’s worse, the same issues they found were present in 4G networks currently used by billions of people around the world.

The researchers are from two US universities: Purdue University and the University of Iowa. They contacted TechCrunch with their findings before officially releasing ...