Numbers stations, as they’re known, have been used by intelligence services since World War I to communicate with agents in the field, but have become increasingly rare in the digital age. With the Internet shut down by authorities in Iran, this Cold War relic has found new life. According to one group of aficionados that tracks these age-old spy tools, it’s the first new numbers station in years.
Put it much more eloquently than I could’ve. Just makes them seem lazy, which calls into question the amount of effort they put into research.
Considering I heard about this in Feb on some ham radio YT channel, and I am not all connected to that community, i doubt these people know much