There’s a reason bridges are more important than the average stretch of road – and why holes are more dangerous. As the world of cryptocurrency has become more complex, more and more transactions rely on so-called crypto bridges that allow transactions involving a wide range of tokens. In June, hackers looted around $100 million from the Horizon crypto bridge. Even before this hack, the money stolen from the bridges had exceeded $1 billion, a stark reminder that just because something is useful, fast and cheap doesn’t mean it’s safe.